using mems technology in natural gas...

© Siemens AG 2011. All Rights Reserved.

Using MEMS Technology in Natural Gas Applications CPAC Rome Workshop 2011


§ What is MicroSAM and SITRANS CV?

§ More than 50 years history of gas chromatography in Siemens

§ Overview

§ Applications

§ Performance of SITRANS CV

§ 3.1 Measuring Components

§ 3.2 Repeatability

§ 3.3 Accuracy

§ 4.4 MTTR

§ 4.5 Installation


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

History and Product Background

Capillary technology

Column switching

system

Injection technology

1950 198019701960 20001990 2010

Parallel

Chromatography

Applications

Communication

technology

Micro-system

technology

MAXUM II

Specific Siemens developments- automation Acquisition of applied Transferred technologies

MicroSAM

2020 Future

1959 2009

Laboratory Gas Chromatography

(LGC)

Process Gas Chromatography (PGC)

Micro PGC

SITRANS CV


Industry Sector


In spite of the successful installations and smooth operation

of traditional on-line Process Gas Chromatographs…

...there was still a customer desire to

§ reduce capital investment

§ reduce infra-structure

§ reduce lifecycle costs

§ reduce cycle and sample lag times

combined with high analytical performance

§ increase simplicity

§ reduce the amount of maintenance required

§ achieve high availability


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background


1990 199619941992 20001998 2002 2004 2006 2008

Type III

§ Columns

§ Detector

§ Valve

§ Electronic

§ Housing

MicroSAM SITRANS CV Type I

§ Columns

§ Detector

§ Valve

Type II

§ Columns

§ Detector

§ Valve

§ Test in

PGC§ Sales

release

§ Sales release


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

What are MicroGCs ?MicroSAM & SITRANS CV

§ Micro Single Analyzer Module

§ Miniaturized and standardized

process GC based on MEMS

§ Simple, modular & economical

§ Consisting of three parts

(analytics, control & electronics)

§ Application modules

(maintenance-free)

§ Rugged ex-proof design

§ Broad communication flexibility

and networkability

MicroSAM: Solution for typical Process Analytics

SITRANS CV: Solution for Natural Gas Measurement


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

SITRANS CV & MicroSAM

Sta

nd

ard

iza

tio

n L

eve

l

MicroSAM

MicroSAM

Hig

hL

ow

SITRANS CV

MicroSAM

§ Natural gas sample

§ special energy software

§ 2 Modules

§ Low networkability

§ Fixed Communication

§ gaseous sample

§ Process software

§ 11 Modules

§ networkability

§ free configurable


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVMeasuring Components

Components Measuring ranges (mol%)

Methane 50 .. 100

Nitrogen 0 .. 25

Carbon dioxide 0 .. 20

Ethane 0 .. 20

Propane 0 .. 15

i-Butane 0 .. 10

n-Butane 0 .. 10

Neo-Pentane 0 .. 1

i-Pentane 0 .. 1

n-Pentane 0 .. 1

Hexane+ 0 .. 3

Hexane 0 .. 1

Heptane+ 0 .. 3

Octane 0 .. 1

Nonane+ 0 .. 1

Oxygen 0 .. 4

Helium A constant concentration can be added to the component list.

H2S< 500 ppm Not measured

Hexan+ = Group (iso/n-Hexane to iso/n-Nonane)

Heptan+ = Group(iso/n-Hexane) and Group(iso/n-Heptane to iso/n-Nonane)

Nonan+ = Group(iso/n-Hexane),Group(iso/n-Heptane), Group(iso/n-Octane), Group(iso/n-Nonane)

C1 to C6+

+/- oxygen

C1 to C7+

C1 to C9+

Options


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVRepeatability Part 1

Measuring Components and Caloric Values

Concentration (Mean value)

Standard Deviation (absolute)

Standard Deviation (relative)

Mol% %

Superior CV Ho 39.8284 MJ/m3 0.002753 0.006913

Inferior CV Hu 35.9134 MJ/m3 0.002507 0.006981

Density 0.7433 kg/m3 0.000072 0.009645

Relative Density 0.5749 0.000056 0.009661

Wobbe Index 52.5300 0.004761 0.009064

Nitrogen N2 1.3464 Mol% 0.006531 0.485036

Carbon Dioxide CO2 0.3480 Mol% 0.001111 0.319118

Methane C1 97.3048 Mol% 0.008428 0.008662

Ethane C2 0.3982 Mol% 0.001433 0.359759

Propane C3 0.1996 Mol% 0.000715 0.358462

Iso-Butane i-C4 0.0995 Mol% 0.000553 0.556262

n-Butane n-C4 0.1031 Mol% 0.000615 0.596241

neo-Pentane neo-C5 0.0509 Mol% 0.000437 0.857970

iso-Pentane i-C5 0.0494 Mol% 0.000536 1.084269

n-Pentane n-C5 0.0500 Mol% 0.000479 0.956977

Sum C6+ C6+ 0.0502 Mol% 0.000422 0.841165

< 0.01%

Fulfills requirements of ISO 6974-5 for measuring components:


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Density

Calorific value

Ambient temperature: -20°C to +55°C

Performance SITRANS CVRepeatability Part II

PTB approved

… also suitable for extreme environmental conditions


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

11,0500 kWh/m 3

11,063 kWh/m 3

12,429 kWh/m 3

9,720 kWh/m 3

9,450 kWh/m 3

10,778 kWh/m 3

Typical performance specified by gas companies: 0.15%

Performance SITRANS CVAccuracy

Calibration results of a PTB approved SITRANS CV (yearly inspection by authorized company)

Density

< 0.08 %

CVS

< 0.02 %

…superior accuracy < 0.1 % (all calculated values) for various

gas qualities in a natural gas transmission grid


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVMTTR

MTTR:

Mean Time To Repair (MTTR). Average time needed for repair,

taking into account maintenance and downtime.

Test:

§ Exchange the analytical

module (Manual)

§ No expert knowledge

necessary

§ Compare the results

before and after

Source:Shell OP 97-30425: Analyzer Maintenance and Data Acquisition System, AMADAS, with Attachment 1 .. 16


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVOperation & Diagnosis

§ Windows based software guarantees simple operation

§ Self-diagnostics of all analytical

parameters monitors health status

§ Password protected access

guarantees high security

§ Checksum verifies correct

parameter settings

§ Int. mean value calculation

§ Internal trend evaluation

§ Integrated display


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVOperation & Diagnosis

§ Automatic optimization technique increases reliability

§ No time is lost by optimizing

during calibration run

§ Optimization parameters:

column switching time;

retention time windows

§ Logbook

§ Long term data storage

§ reports: 100 days,

§ hourly averages: 1 year


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Performance SITRANS CVInstallation

§ No additional hardware is

necessary for the

§ C9+ measurement

(in comparison to the

C6+ measurement)

§ Short cycle time with 100 sec.

§ Same analytical

performance as the

§ analytical standard method C6+

§ Repeatability : < 0.01 mol%

§ Accuracy: < 0.1 mol%

§ Same operation cost

(power and carrier gas)

§ as the standard SITRANS CV C6+

measurement


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Temperature

Range- 20 °C to + 55 °C

Instrument airnot required

Power 24 V DC; 15 VA

Weight15 kg

Sample streams3x sample,

1x calibration

ProtectionIP 65

NEMA 4X

Carrier gasHelium (typically)

Consumption: < 35 ml/min

standby modus: 6 ml/min

Hazardous ClassATEX 2 G EExd IIC T4

CSA Class 1 Div. 1, Group B,C,D

FM Class 1 Div. 1, Group B,C,D

FM Class 1 Zone 1, Group IIB+H2

AccommodationDirectly on the pipe,

in a protective housing

or in analyzer shelter

Performance SITRANS CVInstallation


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

Applications


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

ApplicationsNatural Gas Consumer

Application:

Factories that need a huge amount

of heat prefer natural gas as clean

and efficient fuel.

Purpose:

§ Quality monitoring

§ Process control

Analysis:

§ Wobbe index and calorific value


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

BackgroundApplication

§ Raw Natural gas from the wells must be processed to

‚pipeline quality‘ gas.

§ Removal of different components

Analysis

§ Process control

§ Quality requirements of

Natural gas before feeding

into pipeline system

ApplicationsNatural Gas Processing


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &


§ Transfer to another country

§ Custody transfer:

Selling NG from one company

to another

Purpose

§ Energy Content:

§ Assure Quality

(Properties are withing specified

parameters)

Analysis

§ Calorific value, Wobbe Index, Density

§ Output of individual components

to flow computer

ApplicationsPipeline Metering Station


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &


§ Compress NG for transportation

in pipeline

Purpose Analysis

§ Quality Assurance

§ Protect Compressors, equipment

& pipeline

§ Gas blending for turbine

(If the gas comes from different

wells and change composition

quickly)

Analysis

§ Calorific value, Wobbe Index

ApplicationPipeline Compressor / Blending Station


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &


§ Storage of Natural Gas

Purpose Analysis:

§ Quality check

§ Fiscal metering

Analysis

§ CV, Wobbe Index, Density

§ Sample composition for flow computer

Particular Benefits

§ Reliability, self optimization

§ Plug & Play repair

ApplicationNatural Gas Storage


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

SITRANS CV

Fuel control section of a

power plant in Thailand, Asia

MicroSAM

Gas export metering skid in UK,

Europe

From customized solutions to standard sets (Set CV)

SITRANS CV

Gas transmission station

in Romania, Europe

ApplicationEconomical by system standardization


Industry Sector

Application

Performance

MicroSAM &

Sitrans CV

History &

Background

ApplicationEconomical by modularity & miniaturization

From onshore installations to offshore solutions

Offshore Fiscal Metering

Alvheim FPSO, Norway

Onshore Fiscal Metering

Biogas Plant, Germany


Dr. Stefan Malcharek

Product Manager

SC / Karlsruhe / I IA SC PA PRM

Siemensallee 84

76187 Karlsruhe

Phone: +49 (721) 595 6257

Fax: +49 (721) 595 893 6257

Cellular: +49 (173) 289 2605

E-Mail: [email protected]

Using

MEMS

Te

hnology

in

Natural

Gas

Applications

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using mems technology in natural gas...

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