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TDLAS Analyzer & Application GuideReliable solutions for rapid analysis of H2O, H2S, CO2, C2H2, NH3, and O2

2 TDLAS Analyzer & Application Guide

Natural Gas

Analyte Application Typical Measured Range(s)* Note #

H2O Moisture in Natural Gas 0 - 100 ppmv 0 - 2500 ppmv

10101

CO2 Carbon Dioxide in Natural Gas 0 - 5%0 - 20% 10303

H2S Hydrogen Sulfide in Natural Gas 0 - 10 ppmv0 - 5000 ppmv

10902

O2 Oxygen Measurement in Natural Gas 0 - 100 ppmv0 - 50% 11810

Gas Processing

Analyte Application Typical Measured Range(s)* Note #

H2O Water Measurement in Molecular Sieve Dryer Outlet 0 - 10 ppmv 33701

H2O Water Measurement in Natural Gas Product (Product Purity/Residue Gas) 0 - 10 ppmv 33901

CO2 Carbon Dioxide in Amine Treatment Unit Outlet (Sweet Gas) 0 - 100 ppmv 36103

CO2 Carbon Dioxide in Amine Treatment Unit Inlet 0 - 100 ppmv 34103

H2S Hydrogen Sulfide in Raw Natural Gas Feed (Produced Gas) 0 - 500 ppmv0 - 5000 ppmv

34002

H2S Hydrogen Sulfide in Natural Gas Product (Product Purity/Residue Gas) 0 - 20 ppmv 33802

H2S Hydrogen Sulfide in Amine Treatment Unit Outlet 0 - 100 ppmv 33602

H2S Hydrogen Sulfide in Solid Scavenger Outlet 0 - 100 ppmv 34602

% Refers to Mol. %.

Listed below are applications in Natural Gas, Gas Processing, LNG, Petrochemical, Refining, Syngas and Ammonia industries where SpectraSensors analyzers are used to measure H2O (Moisture), H2S (Hydrogen Sulfide), CO2 (Carbon Dioxide), NH3 (Ammonia), C2H2 (Acetylene), and O2 (Oxygen). For more information on a specific application, please refer to the Application Notes found on the company website.1) Locate the application and analyte of interest2) Go to www.SpectraSensors.com3) Scroll over “Products” then click on “By Industry”4) Click on your industry of interest5) Click on Application Note (Note # listed for reference)

SpectraSensors Application Guide

LNG

Analyte Application Typical Measured Range(s)* Note #

H2O Water Measurement in Dry LNG Feed Gas (Molecular Sieve Outlet) 0 - 10 ppmv 44201

H2O Water Measurement in LNG Product (LNG Receiving Terminal) 0 - 10 ppmv 44401

CO2 Carbon Dioxide in Amine Treatment Unit Outlet (LNG) 0 - 100 ppmv 44303

H2S Hydrogen Sulfide in LNG Amine Treatment Unit 0 - 10 ppmv0 - 20 ppmv

44302

NGL Fractionation Products

Analyte Application Typical Measured Range(s)* Note #

H2O Water in Y-Grade 0 - 50 ppmv 35001

H2O Water in Ethane 0 - 10 ppmv 35101

H2O Water in Ethane/Propane Mix 0 - 10 ppmv 35201

H2O Water in Propane 0 - 10 ppmv 35301

CO2 Carbon Dioxide in Y-Grade 0 - 500 ppmv 35003

CO2 Carbon Dioxide in Ethane 0 - 100 ppmv 35103

CO2 Carbon Dioxide in Ethane/Propane Mix 0 - 100 ppmv 35203

H2S Hydrogen Sulfide in Y-Grade 0 - 20 ppmv 35002

H2S Hydrogen Sulfide in Ethane 0 - 20 ppmv 35102

H2S Hydrogen Sulfide in Ethane/Propane Mix 0 - 20 ppmv 35202

H2S Hydrogen Sulfide in Propane 0 - 20 ppmv 35302

* Consult factory for alternative measurement ranges.

4

Olefins (Petrochemicals)

Analyte Application Typical Measured Range(s)* Note #

H2O Water Measurement in Pure Ethylene 0 - 10 ppmv 55001

H2O Water in Polyethylene Feedstock 0 - 10 ppmv 58001

H2O Water in Cracked Gas Dryer Vessel Outlet 0 - 10 ppmv 54801

H2O Water Measurement in Pure Propylene 0 - 10 ppmv 55101

C2H2 Acetylene Measurement at the Mid Bed of Back End Acetylene Converters 0 - 3000 ppmv 54611

C2H2 Acetylene Measurement at the Outlet of Back End Acetylene Converters 0 - 5 ppmv 54711

C2H2 Acetylene Measurement in Pure Ethylene 0 - 5 ppmv 54911

NH3 Ammonia Measurement in Pure Ethylene 0 - 5 ppmv 55913

H2S Hydrogen Sulfide in Caustic Wash Tower Inlet 0 - 500 ppmv 56902

CO2 Carbon Dioxide in Caustic Wash Tower Inlet 0 - 500 ppmv 56203

Refining

Analyte Application Typical Measured Range(s)* Note #

H2O Water in Semi-regenerative Catalytic Reformer Hydrogen Recycle Streams 0 - 50 ppmv (control) 50 - 500 ppmv (trend) 23101

H2O Water in Continuous Catalytic Reformer Hydrogen Recycle Streams 0 - 50 ppmv 23201

H2O Water in Propane/Propylene Mix 0 - 10 ppmv 23501

H2O Water in HF Alkylation Feed C4 0 - 50 ppmv 27301

H2O Water in Instrument Air 0 - 100 ppmv 65201

H2S Hydrogen Sulfide in Propane/Propylene Mix 0 - 10 ppmv 23502

H2S Hydrogen Sulfide in Flare Gas 0 - 10 ppmv 0 - 300 ppmv

23302

H2S Hydrogen Sulfide in Fuel Gas 0 - 320 ppmv 23402

H2S Hydrogen Sulfide in Semi-regenerative Catalytic Reformer Hydrogen Recycle Streams

0 - 50 ppmv0 - 300 ppmv

23202

Syngas and Ammonia

Analyte Application Typical Measured Range(s)* Note #

CO2 Carbon Dioxide in Outlet of Benfield™ Absorber Vessels 0 - 100 ppmv 65803

CO2 Carbon Dioxide in Coal Liquefaction (CTL)/Gassifier Outlet 0 - 50% 65903

H2S Hydrogen Sulfide in Amine Unit Outlet 0 - 100 ppmv 33602

Visit us onlinewww.spectrasensors.com

SpectraSensors Analyzers

u SS3000 Dual Channel Analyzer

tSS500e & SS2000e Single Channel Analyzer

y SS3000e Dual Channel Analyzer

a SS2100 Single Channel Analyzer

s SS2100a Single Channel Analyzer

d SS2100i-1 One Box Single Channel Analyzer

f SS2100i-2 Two Box Single Channel Analyzer

i 2-Pack Dual Channel & 3-Pack Three Channel Analyzers

q OXY5500 Single Channel Analyzer

oS2100r Rack Mount Single Channel Analyzer

eSS500 & SS2000 Single Channel Analyzer

wSS1000 Portable Single Channel Analyzer

rSS500XP & SS2000XP Single Channel Analyzer

Tel: 800 619 2861Direct: 713 300 2700Fax: 713 856 6623spectrasensors.com

Contact

SpectraSensors, Inc.4333 W. Sam Houston Pkwy N., Suite 100Houston, TX 77043

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PHOTO LOCATOR NUMBER q w e r t e r t y u i o a s d fMEASUREMENT CHANNELS PER SYSTEM 1 1 1 1 1 1 1 1 2 2 2/3 1 1 1 1 1

MEASUREMENT PRINCIPLE QF TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL TDL

ANALYTE & MEASUREMENT RANGES

H2O (MOISTURE)

0-10 to 0-100 ppmv

0-100 to 0-5000 ppmv

40-422 to 40-2110 ppmv

H2S (HYDROGEN SULFIDE)

0-10 to 0-1000 ppmv

0-5000 ppmv to 0-5%

CO2 (CARBON DIOXIDE)

0-100 to 0-500 ppmv

0-5% to 0-50%

O2 (OXYGEN) 0-100 ppmv to 0-50%

NH3 (AMMONIA) 0-5 ppmv

C2H2 (ACETYLENE) 0-5; 0-3000 ppmv

ENVIRONMENTAL TEMPERATURE RANGE

20 to 30°C (68 to 86°F)

-20 to 50°C (-4 to 122°F)

-10 to 60°C (14 to 140°F)

CONTROLLER POWERa

12 Volt Battery with 100-240 VAC Charger

100-240 VAC

24 VDC d d d a a

COMMUNICATION

Number of Digital Outputs/Inputs per channel 2/0 0 2/0 2/0 2/0 2/0 2/0 2/0 2/0 2/0 2/0 2/0 5/1 5/1 5/1 5/1Quantity of 4-20 mA Outputs per channel 2 0 2 2 2 2 2 2 1 1 1 1 1 3b 3b 3b

RS232C

RS485

Ethernet

ENCLOSURE TYPE OPTIONS

Aluminum

NEMA 3R - 304 SS

NEMA 4X 304 or 316 SS Enclosures

NEMA 4 & 7 - Cast Aluminum

EEx n IP66 Copper-Free Aluminumc

EEx d IP66 Copper-Free Aluminumc

ANALYZER CERTIFICATIONS

General Purpose

NEC/CEC Class I, Div 2

NEC/CEC Class I, Div 1 (Field Certifiable)

ATEX Zone 2 or IECEx/ATEX Zone 2

ATEX, and IECEx Zone 1

EAC (Gost-R), CNEx, KC ,CCOE, INMETRO

CE

RCM

The matrix below provides information to assist in selection of a SpectraSensors analyzer for measurement of H2O (Moisture),H2S (Hydrogen Sulfide), CO2 (Carbon Dioxide), NH3 (Ammonia), C2H2 (Acetylene), and O2 (Oxygen) in hydrocarbon gas streams.

a. Controller 24VDC may be combined with SCS 120/240VAC power b. Three 4-20 mA signals = 2 outputs and 1 input (moisture only)c. With 304 or 316 SS Sample System Enclosured. 12VDC option also available

QF = QUENCHED FLUORESCENCE TDL = TUNABLE DIODE LASER = STANDARD = OPTIONAL

SpectraSensors TDLAS Analyzer Guide