gsfc energy efficiency
TRANSCRIPT
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Presented by :
M.N.Tekchandani
Chief Manager
GNFC Ltd.
Date : 26.02.2015
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2/27/2015 GNFC Ltd
About GNFC Ltd.
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2/27/2015 GNFC Ltd
• Joint sector enterprise promoted GOG & GSFC ltd, Public.
• Diversification :
Fertilizers such as ANP & CAN,
Industrial chemicals such as Methanol, Formic Acid, Acetic Acid, Nitric
Acid, Aniline, TDI, Ammonium Nitrate
Information Technology.
Certified Emission Reduction (CER) Company: 40,663 certificates for N2O Abatement Project in Weak Nitric Acid (WNA) Plant, as well as 47,540 VER
for its 21 MW Wind Mill project in Kutch region of Gujarat.
CSR: Narmada Rural Development Society
Rs. 2001.57 lacs incurred in the year 2011 to 2014.
Mobile medical van, Nutrition Project, Vocational training center,Model school project, safe drinking water for villages.
Camps for Blood donation, eye donation, handicapped, Running School and College, Relief assistance during natural calamities
Gujarat Narmada Valley Fertilizers & Chemicals Limited.
Bharuch Gujarat
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ENERGY CONSERVATION STRATEGY AT GNFC
10. Energy Cell
7. Energy Audits
3. Up gradation of Technology
8. Employee Suggestion Schemes
11. Awareness program4. Monitoring of Consumption
1. Selection of Technology
6. Energy Saving Schemes
2. Reliability Improvement
5. In house capability
9. Renewable Energy
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1. Selection of Technology
Plant Technology
Urea Saipem, Italy Ammonia Linde Germany, Haldor
Topsoe -Denmark, Texaco
Ammonium Nitrophosphat BASF, Germany
Calcium Ammonium Nitrate UHDE, GermanyFormic Acid Kemira OY, Finland
Acetic Acid B.P.Chemical,UK.
Con. Nitric Acid Plinke, Germany
Weak Nitric Acid/ AmmoniumNitrate
UHDE, Germany
Methanol Toyo,Japan
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Identify equipment system limitation.
Sustained operation.
CO Shift section revamp.
Gasifier Quench ring modification.
Addition of one new chimney in Boilers.
Additional feed oil pump in Ammonia plant.
Refrigeration compressor modification to reduce speed
below MCS. Addition of Third Gasifier
2. Reliability Improvement
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A. New Catalyst basket S-50 Installation : Ammonia PlantSyn. Section for reducing steam consumption
B. Pre Decomposer and Pre Evaporator Concentrator inUrea Plant : For converting waste heat into steam
C. Isothermal Reactor : Improving energy Recovery inMethanol-II plant Reactor section by replacement of
Axial Quench Type Reactor with of Isothermal Reactor
D. Revamp of Ammonia plant : for Feed stock conversion(Fuel Oil to Natural Gas).
E. Gas Turbine based Co-generation CPSU. : Heat ratereduced to around 2700 kcal/kWH
3. Up gradation of Technology
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Installation of S-50 converter along with
additional waste heat Boiler and newly
designed BFW prehaeater: The synthesis
gas from existing Ammonia synthesisconvertor R-701 is feed to new waste heat
re-boiler E-703M for recovering heat of
reaction. It is subsequently charged to new
Ammonia Synthesis converter R702 (S-
50). Exit synthesis gas from R-702 is fed to
existing waste heat boiler E-703. BFWprehaeater E704 redesigned and replaced
for higher heat recovery.
3. A: Installation of S-50 converter
Total investment, Rs. 5666 Lakhs
First year energy cost savings, Rs. 1924.6 Lakhs
Energy consumption before : 4.458 MT of HPSH Steam /MT Ammonia
Energy consumption after : 4.068 MT of HPSH Steam /MT Ammonia
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Investment : Rs 2186 Lacs
Total Savings : Rs 468.14 Lacs/Year
Urea Process was modified
with MP Pre Decomposer andUrea Pre Evaporator
Concentrator installation for
converting waste heat into
steam.
3. B: Urea Revamp
MP Pre Decomposer
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HP
Section
MP
Section
LP
Section
Vacuum
Section
Prilling
section
Pre evaporator concentrator
- Pre concentrator
- Urea solution pump
- Vacuum system
Modification
3. B: Urea Revamp Block Diagram
Pre decomposer
- MP pre decomposer
- Condensate collector
- Steam jet pump
Modification
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Investment : Rs 9600 Lacs
Total Savings : Rs 220.29 Lacs/ Year
Improving energy Recovery inMethanol-II plant Reactor section by
replacement of Axial Quench Type
Reactor with of Isothermal Reactor ,
resulting in 28 kg/cm²g - SaturatedSteam generation @ 23 - 24 MT/h at
full load of plant. Installation of energy
efficient 3 column distillation system
(Methanol Distillation Unit - MDU) to
save steam and electricity andreplacement of air preheater resulted
in overall saving of Steam, Power and
Natural Gas.
3. C: Methanol-II Revamp
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Review of Specific energy consumption at topmanagement level.
Addressing Energy issues :
Fuel management.
Operation of boilers and other furnaces.
Performance of steam and condensate system. Performance of compressed air network.
Cooling Towers Performance evaluation andmonitoring.
Performance of rotating machines. Electrical load management system and lighting
load.
Continuity in plant operation.
4. Monitoring of Consumption
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Software Application Sr No. Software Purpose
1 Aspen Simulation
2 Chemcad Simulation 3 HTRI Heat Exchanger Design 4 HTFS Heat Exchanger Design 5 Hysis Simulation 6 Sinet Simulation
7 Auto CAD Drawing & Engg.
5. In house capability
Infrastructure
Technical Services group Process Design and Simulation
Design & Construction Group Piping ,Mechanical, Electrical,Instrumentation and Civil Design,
Construction
PMG Group S/D schedule, production budget, Hazop,Safety, Lube oil, plants performance review.
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Aniline/TDI Plant: 6" line fromutility plant to ANI/TDI complex isinstalled to stop air venting bystoppage of one compressor.
• Power saving : 1460 MWh/Year.• Total investment : Rs. 41 Lakhs
CNA Plant: Provision of VariableSpeed Drive for 50K060 blower.
• Power saving : 222000 kWh/Year• Total investment : Rs.6.0 Lakhs
6. Energy Saving Schemes
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Ammonia plant: Improvement in Fan
Operating Efficiency by Revising Fan
specifications to match actual
operation.
• Power saving : 39 kW
• Investment : Rs 3.82
6. Energy Saving Schemes
Ammonia plant: In Ammonia plant,
power saving achieved by removing
one of the impeller from MP BFW
multistage pump P-1302.
• Total investment : Rs. 1.0 Lakhs
• Power Saving : 514800 kWh
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Urea Plant: Additional small
capacity Pump P-2 C was installed to
save energy at higher plant load.
Total investment : Rs. 350 Lakhs
Power Saving : 10.32 Lakh kWh
6. Energy Saving Schemes
Ethyl Acetate Plant : With the help
of change in blade angle of Cooling
Tower Fans, one of the cooling water
pump was stopped .
Total investment : Rs. Nil
Power Saving : 556910 kWh
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Hazardous Plant: Total 71 defective traps/valve /fittings/
coupling and line leakages were indentified. 10 trapsreplaced with new one, reduction in steam consumption of
LP steam @ 1 MT/Day in Hazardous plant
6. Energy Saving Schemes
E A di
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Internal Audits & Surveys
Walk Through Audit
External Audits- Legal and Voluntary
7. Energy Audits
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Internal Audits and Surveys
Fans/Blowers
Steam Traps
Compressed Air
Cooling Towers
Cooling Water Pumps
Process Pumps for Possible Impellers trimming and Resizing
Insulation Surveys: steam piping & Boiler Insulation
Thermography of Boilers
W lk th h S
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Cooling Towers
Walk through Survey
Steam Trap
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Energy audit of GNFC complex
Energy audits of GNFC complex by External Auditors
Year o f Audit
2002
2005 2009
2013
Its various recommendations implemented.
8 E l S i S h
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8. Employee Suggestion Schemes
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Installed capacity of Wind Power Generation 21 MW
9. Renewable Energy
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Solar System is installed and working satisfactory at the
following locations.
Corporate Building:150 KW Presently Guest House Solar system feeding 125 KWH / Day,
School solar System 625 KWH / Day and Corporate Solar
system 600 KWH / Day in the Electrical system.
9. Renewable Energy
ll
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• Forming of Energy Cell in 2001
• Framing of Energy Policy
• Energy efficient Purchase guide line
• Mandatory Compliance (BEE,PAT)
• Identification of Energy saving
potential
• Energy Audit Support
10. Energy Cell
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Guideline for purchase of energy efficient items
• Electric Motors
• Electric Transformers, Heaters, Vibrators etc.
• Criteria for Purchase of Rotating Machinery like
Compressors, Pumps, Blowers, Fans etc
• Electrical Appliances like Lighting, Fans, Split and
Window Air Conditioners, Refrigerator, Coolers,
Geysers etc.
11 Awareness program
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Awareness program from employee as
well near by school children
11.Awareness program
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