Download - Industrial Attachment Final Report
SCHOOL OF CHEMICAL AND BIOMEDICAL ENGINEERING
(Division of Chemical & Biomolecular Engineering)
Nanyang Technological University
Report on
Industrial Attachment
With
Air Liquide Industrial Gas Pte Ltd (SOXAL)
Prepared by : Eng Kah Hoe
Matriculation Number : U1323053H
Email Address : [email protected]
Company Supervisor : Mr Leo Lai Ji Hau
NTU Mentor : Prof. Raymond
Table of contents
Abstract ………………………………………………………………………………………………….3
Acknowledgement ……………………………………………………………………………………….4
List of Figures and Graph………………………………………………..................................................5
1. Introduction…………………………………………………………………………………………….6
1.1Industrial Attachment …………………………………………………………………………6
1.2 Learning Objective……………………………………………………………………………6
2. Company Profile ………………………………………………………………………………………6
2.1 Background and Organization of Air Liquide ……………………………………………..…7
2.2 System Semiconductor Manufacturing Co. Pte Ltd……………………………………………7
3. Key Assignments……………………………………………………………………………………….8
3.1 UPOX Plant Studying and Improvement………………………………………………………8
3.1.1 Background …………………………………………………………………………….8
3.1.2 Objective …………………………………………………………………………….…9
3.1.3 Methodology ……………………………………………………………………………9
3.1.4 Findings and Improvements …………………………………………………………..10
3.1.5 Learning Outcomes …………………………………………………………………...10
3.2 International Organization of Standardization (ISO) …………………………………………11
3.2.1 Background ……………………………………………………………………………..11
3.2.2 Objective ……………………………………………………………………………….11
3.2.3 Methodology …………………………………………………………………………..11
3.2.4 Findings and Improvements ……………………………………………………………12
3.2.5 Learning Outcomes ……………………………………………………………….…….12
4. Routine Tasks ………………………………………………………………………………………12-14
5. Ad – Hoc Tasks ………………………………………………………………………………..…..….14
5.1 Technical Works ………………………………………………………………………….……..15
5.2 Non-Technical Works …………………………………………………………………….……..16
6. Experience toward Industrial Attachment …………………………………………………………..17
7. Conclusion …………………………………………………………………………………….……18
Abstract
The purpose of this report was to illustrate and elaborate on my internship and give readers a better
understanding on my 5 months internship provided by Air Liquide Industrial Gas Company from
11st January 2016 until 28th May 2016. A brief introduction of the company and the electronic gas
operation (EGO) department were provided to enable readers have better knowledge on the
company profile. My routine tasks and the key assignments also the ad hoc tasks would be shared
in this report to allow the readers have better perspectives on my role as a Process Engineer Intern
in Electronic Gas Operation Department (EGO). Throughout these 5 months internship fulfilled
with the tasks and assignments allocated by the Engineer, I undoubtedly had gained valuable
experience such as learned few plants process operation knowledge, working in a team oriented
environment and troubleshooting the operation problem also the effective communication in the
working place. My internship experience with Air Liquide Industrial Gas Company has been
fruitful and full of excitements and challenging which will be prepared me for my future career as
a Process Engineer in near future.
Acknowledgement
I would like to express my gratitude to Air Liquide Industrial Gaseous Pte.Ltd for offering me the
opportunity to work and experience as a Process Engineer Intern under the operation department
in Electronic Gas Operation (EGO) of SSMC tank farm.
First of all, I would like to thank Professor Raymond Lau for his guidance and mentorship
throughout these 20 – weeks of Industrial attachment Programme. I would like to show my
appreciation and gratitude to my supervisor Mr Leo Lai Ji Hau for giving me the chance to work
under SSMC tank farm operational field and his supportive help and guidance throughout the
internship programme.
Besides that, I would like to thanks Mr Gerard Oh William and Chen Cifu the SSMC tank Farm
engineers for their time and patience in introducing the related unit operation and answering all
my doubts on process throughout the internship programme. In additional, I would like to express
my gratitude towards all the engineers from other department and also technicians namely, Mr Tan
Chee Yong, Mr Allan, Mr Arun, Mr Yak Yong Long, Mr Kamil and Mr Foo for their guidance
and support. They are approachable and their willingness to share their knowledge and teach me
the concept and technical skill on process operation despite their busy schedule.
Moreover, I would like to thanks Ms Michelle Niam, Ms Selina ans all the colleagues in Electronic
Gas Operation for their assistance on logistics and administrative stuffs. Last but not least, I want
to thank my fellow buddy interns namely Jarrell, Toh Ying Ying, Lee Hui Ting, Elizabeth, Jing
Qi and Ann for making the internship memorable with their company and support.
1. Introduction
1.1 Industrial Attachment
Industrial attachment is a learning process in which students get to experience the real
engineering life under the supervision of work place professionals. The objectives of this
industrial attachment are to supplement NTU’s in-house practical professional training and
to instill in the students the right work attitudes and professionalism so that they could
become effective and productive to the respective organization much sooner than is usual
for the fresh graduates. Then students can link their knowledge to practice at the same time
gain new knowledge from work place. The industrial attachment is a learning process by
providing students with exposure to real life team oriented working environment as part of
the academic curriculum that helps in development of technical skills, personal,
professional communication skills, and discipline and team work competencies. The
significant of this internship programme is the self – directed learning approach by the
student due to the diversity of attachment environment and background of the organization
supervisors.
1.2 Learning Objectives
In the end of the industrial attachment, I would like to:
Gain better understanding on the roles and responsibilities as a Process
Engineer in operating plant sites.
To understand the existing plant operation and process and also the existing
procedures.
Identify the gaps and recommend new procedures required for coming new
plant
To set up best operation and quality procedure that improve productivity, plant
reliability, quality and safety.
2. Company Profile
2.1 Background and Organization of Air Liquide Company
Air Liquide – a leading entity in today’s industrial and medical gas industry was
establish in 1902 in France. Air Liquide was recognizing the need for a reliable gas
producer to support the burgeoning Far East economy in early 20th century. Air Liquide
had established Far East Oxygen in Singapore in 1911 to meet the rising need of
industrial gaseous. From years to years as Singapore grew, so did the demand for
gaseous. The upward industries augmented the need to develop a wider supply chain
which giving the rise to the formation of Singapore Oxygen Air Liquide Pte Ltd
(SOXAL) in 1975 as a joint venture between Far East Oxygen and Singapore Oxygen.
SOXAL had operated in 21 locations around Singapore, consisting of 4 subsidiaries
and joint venture companies, making it the largest gas provider in the region.
Going to where our customers are, our plants are strategically located near industrial
sectors to ensure proximity and relevance. For the larger users, SOXAL has specifically
designed onsite plants installed at the customer’s premises. With the largest liquid
storage in Singapore, the backup storage facilities also ensure a constant and continuity
supply to their customers in order to prevent business downtime. SOXAL had come a
long way since partnering with diverse industry companies to support the Singapore
economy through a unique blend of advanced equipment, processes and systems
supported by a highly engaged and competent workforce.
Today, SOXAL is Truly Air Liquide anew, celebrating a return to Air Liquide family
as wholly owned subsidiary. With this, SOXAL is geared to stay ahead, leveraging on
Air Liquide’s expertise and experience as one of the earliest pioneers of the gas industry
to deliver even greater value, leading-edge technology and revolutionary innovations
to their customers.
The business of Air Liquide is diversified and covers almost every aspect of the
industrial gaseous including production, pipeline network distribution, marketing, and
special gaseous manufacturing. Shown below Figure 1
Figure 1: Air Liquide Organization Chart
2.2 System on Silicon Manufacturing Company Pte Ltd (SSMC)
Tank Farm
System on Silicon Co. Pte. Ltd. (SSMC) is a semiconductor fabrication company
located in Paris Ris Wafer Fab Park. It was incorporated in 1999 and is a joint venture
between NXP Semiconductors and Taiwan Semiconductor Manufacturing Company
(TSMC). The core business of SSMC as a CMOS silicon foundry is wafer fabrication
and providing exclusive foundry to their partners. SSMC offered 0.25 micron - 0.14
micron with derivatives and embedded flash CMOS manufacturing process. Key
device features include dual gate oxide, low leakage, high speed, low power, mixed
mode and embedded flash. Various options are available for each of these nodes, for
example polyimide coating for stress relief, thick top metal for power and high
resistivity substrate for noise suppression and RF applications. SSMC offers advanced
Air Liquide Pte Ltd
Health Safety Environment and
Quality (HSEQ)
Finance/IT/Purchasing
Human Resource (HR)
Engineering Project and Solutions
Legal
Core Business
Large Industries (LI)
Electronic Gas Operation
(EGO)
Industrial Merchant (IM)
Healthcare
wafer fabrication capabilities ranging from 0.11 micron to 0.14 micron technology
nodes. It wide portfolio of silicon proven derivatives and options are capable of
handling diverse characteristics and requirements by today’s customers.
One of the key elements that SSMC required in the wafer fabrication manufacturing
process is the industrial gaseous. Since Air Liquide is the global industrial gaseous
supplier hence Air Liquide had built up its own tank farm with all the required
equipment in the SSMC’s premises. For Air Liquide wise, SSMC is considered one of
the customers whereby Air Liquide duty is to supply SSMC industrial gaseous such as
Helium (PHe), Hydrogen (PH2), different types of nitrogen (PN2, UN2, and GN2),
Ultra-Pure Oxygen (UPO) and compressed dry air (CDA). This tank farm was built
inside the customer’s premises is to make sure continuous supply of the industrial
gaseous to customer.
Overall, there have two plant process operations in SOXAL-SSMC tank farm, such
operations are Teisan Compact Nitrogen plant (TCN) and Ultra-Pure Oxygen Plant
(UPOX). The TCN plant main purpose is to produce three purities of nitrogen such as
processed nitrogen (PN2), Un-processed nitrogen (UN2) and Gross nitrogen (GN2),
while UPOX plant is to produce ultra-pure oxygen. Besides that, SOXAL also
supplied bulk gaseous such as Helium, Hydrogen and Argon to SSMC whereby these
bulk gaseous are not synthesis in SOXAL-SSMC tank farm instead these gaseous are
came from other SOXAL tank farm from Jurong Island.
3. Key Assignments
3.1 Ultra-Pure Oxygen Plant (UPOX) Studying and
Improvement
3.1.1 Background
The overall process operation of the UPOX plant was to produce ultra-pure oxygen
which had a very high purity. The produced ultra-pure oxygen (O2) has a lot of major
daily usages beside respiration purpose. For example one of the usages of this ultra-
pure oxygen is the industries use gas for cutting, welding and melting of metals. This
highly pure oxygen capable of generating temperatures up to 3000’C which enable
melt, soft and slice the metals into the wanted dimensions or shapes. There are several
processes take place in this UPOX plant such as re-boiling, compressing, cooling,
rectification, distillation and filtration in order to obtain the ultra-pure liquid oxygen.
The produced ultra-pure oxygen will be stored in a buffer tank for supplying to
customers. However before supply to customers, this pure oxygen will be undergoing
further purifying by purifiers then proceed to few analyzers to analyze to make sure the
purity of the gas is within the range of qualification. After these two steps then the
oxygen gas can be fully supplied to customers.
Figure 2: UPOX Operation Process
3.1.2 Aim
The aim of this assignment was to study the process operation of the UPOX plant
thoroughly in term of process and efficiency. Then after study the whole process need to
follow up by updating the standard operating procedure (SOP) and also the suggested
improvements.
3.1.3 Methodology
To have a better understanding of the UPOX plant, we need to have basic knowledge on
the chemical and physical properties of the oxygen (O2) and nitrogen (N2) in both liquid
and gaseous state. This is because each gaseous have its own densities, boiling and melting
points also different type of gaseous has different expansion coefficient which affect the
rate of expansion from liquid state to gaseous state. Hence, this concept too applies to both
oxygen and nitrogen. In order to obtain the ultra-pure oxygen (UPOX) nitrogen gas is
required during the process. The reason nitrogen gas required is because the process needed
the differences of temperatures between the nitrogen and oxygen for further distillation and
filtration to achieve the purity of 99.999999% ultra-pure oxygen.
UPOX plant consists of components such as compressor, supply tank (mother tank),
column, condenser, exchanger and reboiler. Each equipment has its own specific process
that combined together to work the whole process operation. Firstly the liquid oxygen will
flow to column to undergo rectification process to separate out methane then this removed
methane liquid oxygen will be evaporated inside reboiler by gas nitrogen to further
Liquid
Oxygen
Re-boiling, Cooling
and Drying Processes
Distillation and
Rectification
Nitrogen Gas
Ultra-Pure
Oxygen
distillate and get rid of unwanted hydrocarbon. Re-boiling is a process where use the
temperature difference and pressure difference among nitrogen and oxygen to achieve
distillation process to separate impurity from oxygen. These evaporated gas oxygen will
then condense inside heat exchanger reform liquid oxygen again and go through another
rectification process in a column to remove Argon. Further evaporating and condensation
of the liquid oxygen finally form the ultra-pure liquid oxygen and store in a storage tank
for supply.
Throughout the whole process of the UPOX operation, parameters such as pressure, flow
rate and temperature are needed to take care of for obtaining desired productivity and purity.
Then the UPOX process also had been implied into a designed stimulation model for
monitoring of the operation. By using this simulation model all the parameters related to
the UPOX process can be controlled effectively and achieve optimized productivity.
3.1.4 Findings and Improvement
After studied and understanding the process and how to operate of UPOX plant thoroughly,
certain defects related to the process had found then corrective action including the
improvements toward the defects had been done. In term of documentation, few Standard
Operating Procedures (SOP) based on processes regarding to the UPOX plant had been
created and updated. Such SOP were:
(i) Deriming For UPOX Plant
(ii) Regeneration For Liquid Oxygen Filter
The purposed of SOP is used as a reference or guideline for engineer or technician when
dueling with UPOX plant. As a result, it is important to always keep the SOP in the latest
revision.
Then on-site wise, some changes had been made regarding to the UPOX plant. All the
pipelines and the related valves had undergone checking and maintenance in term of
labelling, functionality, sensitivity, auto-controlling and transmitting to make sure all of
them still in qualified performance.
Moreover, after had done some changes of the on-site UPOX plant regarding to piping and
valves then of course must update all the related documents. Thus, the PID diagram of
UPOX plant had been updated to the latest version based on the improvement that had done
for example name of the labels, position of the valves and also the tag numbers of the
components in the system. This enable us to trace the line and equipment on – site
especially during maintenance.
3.1.5 Learning Outcome
Through the course of studying and working on this assignment, firstly I had learnt the
process of synthesis the ultra-pure liquid oxygen from raw materials. I was able to applied
knowledge that I gained during my school such as distillation, re-boiling, rectification and
cooling in learning and understanding the plant operation. Then I had learnt the importance
of process stimulation in controlling the task of optimizing the process unit. The process
stimulation model enabled me to have better understanding and have a chance to practice
on this stimulation model design which interlink to the actual process. This will be
facilitated me in my final year project which involves the use of stimulation software.
3.2 International Organization for
Standardization (ISO) Preparation
3.2.1 Background
International Organization for Standardization (ISO) is an independent, non-
governmental organization. It is the world’s largest developer of voluntary
international standard and facilitates world trade by providing common
standards between nations. Thousand standards had been set covering
everything from manufactured products and technology to food safety,
agriculture and healthcare. The use of this standards aids in the creation of
products and services that were safe, reliable and of good quality. The ISO
helped businesses increased productivity while minimizing errors and waste.
By enabling products from different markets to be directly compared, they
facilitated companies in entering new markets and assist in the development of
global trade on a fair basis. The standards also serve to safeguard consumers
and the end users of products and services which ensuring that certified product
conform to the minimum standards set internationally.
3.2.2 Aim
The objective of this assignment is to understand the importance of
documentations for a company to always maintain the standard of the products
and the role of an engineer in maintaining the quality of the services and
products.
3.2.3 Methodology
International Organization of Standardization (ISO) is a certification based on
the quality of our products for customers. Our company must always make sure
our latest standards policies are applied and practiced in every sectors and
departments. There are specific standards of ISO, these are:
(i) ISO 9000: Quality Management System (QMS)
(ii) ISO 14001: Environmental Management System (EMS)
(iii) ISO 18001: Occupational Health and Safety Management (OSHA)
Each ISO had its very own and specific requirements that needed to fulfill in
order to keep our company up to global standard and build the expectation and
more importantly the trust of our customers.
For this assignment, I was required to have a general information on our
company Air Liquide in term of organization structure, legal policies,
documentations and implementation of latest policies and later on I needed to
link all these information up together and make its practical.
3.2.4 Findings and Improvement
Throughout the review and trance of our department ISOs, I had found some
gaps that had deviated from latest requirements of company’s policies. These
gaps were:
(i) Lost track of certain documents
(ii) Outdated Standard Operating Procedures (SOP) on some process and
operation
(iii) Documentation in term of storing and updating
After reviewing and pondering all these gaps with my supervisor and
engineer, we had discussed and provoked ways to resolve all these gaps which
to maintain our high quality and standard. In the end, the outdated documents
and SOP had been updated and started to keep in good shape so that these
documents could be found and traced when needed. Then with all these
updated documents and latest policies we had passed the external audit by
external company.
3.2.5 Learning Outcome
Through the course of working on this project, I came to realize the importance
of documentation in preserving the quality of company’s services and products.
The specified ISO such as 9001, 14001 and 18001 enabled me to get a better
understanding on the quality management, environment management and
health safety management for the operation of the company.
This project also allows me to learn and have a better perceptive on the
responsibilities as an engineer to nurture the qualities of a company.
4. Routine Task
4.1 Unit Monitoring
One of the fundamental task as a Process Engineer intern was process monitoring
activities. The activities includes updating daily, weekly and monthly monitoring files
such as data collecting from operating processes, purity of gaseous and monitoring
spreadsheet.
4.1.1 Daily Purity Data Monitoring
OCAP form was a report that required submit to customer (SSMC) based on
the data trend that the designed stimulation model based on analyzers, APIX
that had recorded throughout the entire operation.
As known, some processes in electronics required gaseous of extremely purity
and to guarantee such purity, Air Liquide had an unparalleled solution on
offering analyzer APIX for analyzing gaseous at part per billion (ppb) levels.
APIX is an analyzer machine with its own automatic sampling and calibration
system that used to monitor the concentration of several key impurities
simultaneously in more vector gaseous. Air Liquide supplied industrial gaseous
such as Argon (PAr), Helium (PHe), Hydrogen (PH2), Oxygen (O2) and
Nitrogen (N2) for SSMC. However, each gaseous were required to be purified
and analyzed by both purifiers and analyzers to determine the impurities within
the gaseous before can supply to SSMC. So the analyzers played crucial role in
analyzing and generating the purity data for all the gaseous. This was to
maintain the high standard of supplying.
Objectives of OCAP Form:
(a) To maintain the high quality and purity of all the supplied gaseous to
SSMC
(b) Act as a discussion forum between Air Liquide and SSMC to discuss on
the actions required to take when the purities were out of the range.
(c) To troubleshooting any incidents regarding to the purity of the gaseous.
4.1.2 Calibration of Analyzers
The main role of analyzer was to analyze and determine the purity of gaseous
before supplied to SSMC. There had specific analyzers to analyze specific
impurities contained inside the gaseous. For example,
(i) Servomax Analyzer: determine the CO2 in nitrogen gas
(ii) Toray Analyzer: analyze amount of CO content of gaseous
(iii) Gow Mac: determine the amount of Argon, Methane and Nitrogen
content inside the oxygen gas
(iv) Meeco Analyzer: analyzed the moisture (water) content of gaseous
Therefore it clearly showcase the important of these analyzers in industrial gas
Supply Company. To keep the high quality and standard of the supplied
industrial gaseous to SSMC, we were required to make sure the purities of all
the gaseous analyzed by all the analyzers within the range of the impurities. The
unit used for measuring the impurity was in Part per Billion (ppb) which was
highly pure gaseous supplied.
For the information, the data of the impurities analyzed by the analyzers would
be deviated from the quality range as requested due to over period of performing.
As a result, all the analyzers were required to carry out calibration based on
calibration period of each analyzers such as weekly, monthly or fortnightly. The
method of performing the calibration is using the two points calibrate where we
used the lowest and maximum set values and do the interpolation to obtain a
linear line so if the values obtain is fall in the line mean the purity is acceptable.
The purpose of carrying out calibration for analyzers was to re-adjust the
performance of the analyzers within the range to make sure that the equipment
perform at required capacity. Throughout the internship, I was able to learn the
concept of the calibration and the method to carry out the calibration on
analyzers.
4.1.3 Closing of Work Order
Work order was a general document that provided by SSMC to Air Liquide to
performance some tasks in their premises. These orders act as a proof to both
SSMC and Air Liquide that the tasks had been done and closed.
So my role was to make sure all the tasks given had been settled within the
period of time given then went in the computer system and close all the
required work orders. Lastly, all the closed work orders were documented as a
proof and easier for tracing.
5. Ad-Hoc Task
Apart from Routine work and key assignments, I was assigned for some other tasks both
technical and non-technical works.
5.1 Technical Works
Plant Shut Down Maintenance
Tank farm had undergone one week plant shut down maintenance for checking,
repairing and maintenance of all required equipment. Throughout this shut down
project, all the required items had been refurbished and maintained to keep in good
performance.
Change of the column of the Purifier
As we know the purifier role was to remove unwanted impurities through catalytic
adsorption process. Due to longer period of performance the catalyze bed of the purifier
was saturated with all the impurities materials so there needed to change a new clean
catalyze bed column. Through involving myself in this task, I was able to gain
knowledge on the operation of the purifier in term of the pipe line system, heating and
cooling system and the purging system.
Troubleshooting of Compressor
Compressor role was to compress the air and remove some of unwanted dust and
particles. Compressor had it capacity in compressing the air before to chiller for cooling
down. I had the chance to learn and real practice on troubleshooting the compressor by
adjusting the flow rate of input and output to set the value within the best efficiency
capacity.
5.2 Non-Technical Works
Initiate working permit
Regulating the pressure and flow rate of the supplied
Register for SIC training
Update the Standard Operating Procedure
Organized Safety Day 2016 for Electronic Gas Operation (EGO) department
6. Experience toward the Industrial Attachment
Throughout the 20-weeks of industrial attachment, I personally felt that how importance of such
industrial attachment needed by an undergraduate students before facing the real working life. For
me, I truly felt that I had gained and acquired working experiences throughout this whole internship.
Undoubtedly, I had learnt and enrolled some knowledge from diversified aspects that definitely
benefit to me for my future. One of the aspects I had learnt was to be more approachable to
everyone in the working place. It was a norm that for an intern to feel that they had been leave
over by their fellow colleagues or supervisor as they were just fresh and new to the working
environment. However, on good site this was the opportunity to explore and be open-minded to
learn from others. As an intern, I had taken initiative toward all my colleague and supervisor to
help them on some of the task like documentation, reporting, discussion on operation and on site
troubleshooting which indirectly I had taken in something useful along the way.
Then during the industrial attachment I realized the significant on applying knowledge from school
infused to the actual working engineering environment. My internship was based on process
operation controls which enable me to refresh my knowledge and practice in my working place.
Those processes such as distillation, separation, rectification, and other processes were applied in
the operation yet all these were not visible instead all these processes already installed inside a
designed stimulation model with some advance technologies. This enables me to explore new
simulation model that used in engineering field nowadays.
Moreover, this industrial attachment had given me a better understanding on the role and
responsibilities as an engineer in future. During this industrial attachment, I had experienced and
learnt the duty as an engineer in the aspects of understanding the whole operation process,
controlling the process and troubleshooting of the operation. Furthermore, besides technical duties,
engineer also had the responsibilities in keeping the documentation updated. Such documentation
can became source of tracing and approval that showcase the update and also the corrective action
that had taken. I was so grateful that I had the opportunity to experience both documentation role
and technical operation role during this internship.
Lastly, throughout this industrial attachment I had experienced and gained a lot of real life
engineering practices and I really felt that this 20-weeks internship had beneficial me toward my
future career.
7. Conclusion
The industrial attachment at Air Liquide Pte.Ltd has undoubtedly provided me with great
learning opportunity about the process and operation control and more importantly the role and
responsibilities as an engineer. I was really appreciated the patience and the guidance given by
the colleagues here when doubts were raised. They had tried their very best by squeezing extra
time to explain and answer all my questions to make sure I had a better understanding toward the
tasks I had taken throughout the internship.
The internship also provided me with the opportunity to learn how to use the company’s use
designed model simulation software on the actual operating parameters, control the process
changes and also control the productivity and more importantly the energy effectiveness. This
really gave me a good starting practice and understanding on the current simulation model.
Through the challenges that I had encountered during working on the assignment, I realized that
the operation of a process was not an easy task. Many controlled parameters such as flow rate,
pressure and temperature had to be taken into consideration and many options had to be within
the range to achieve an optimized process.
Moreover, Air Liquide had imparted me the importance of safety in the process as Safety had
always been the priority of the company since years ago. Air Liquide very concern on safety
toward all the employee. A lot of regulations, policies, safety meeting, safety briefing and rules
regarding safety had been implied to all the site of the company.
In conclusion, this industrial attachment experience had been a fruitful working experience for
me and definitely beneficial to me in preparing me myself for my future career as an engineer.