1. Industrial Process Gas Analysis & Monitoring Solution

2. What is Syngas? Typical composition of syngas
Syngas (synthesis gas), which is also called as coal gas or producer gas, is a kind of combustible gas mixture of nitrogen, carbon monoxide, and hydrogen, mainly generated by passing air with steam over burning coke or coal in a gasifier and used as fuel for different industries like steel making, cement, power plant, and other high fuel consumption industries.
Typical composition of syngas CO
CO2 H2 O2
CH4
C2H2
C2H4
C2H6
Biomass Gasification
28%
15%
18% 1%
12%
<0.5%
<1% 2%
Coal Gasification
30% 6%
48%
0.2%
MSW gasification
19.8%
13.2%
14.7%
16.4% 3%
5.4%
1.2%
**Pictures from internet

3. Why need to measure Syngas?
Production process control
Gas composition: CO, CO2, H2, O2, CH4, CnHm, C2H2, C2H4
Gas heating value monitoring
Process safety monitoring
CO, O2 concentration control
Combustion and treating optimization
CO, CO2, O2 measurement for air/fuel ratio adjustment
CO, CO2, CH4 for carbon potential check

4. What’s the challenge? Cross-sensitivity between CO and CO2.
Cross-sensitivity between CH4 and C2+ hydrocarbons .
H2 measurement in complicated background gases.
Laser Raman Analysis result for syngas from biomass pyrolysis

5. Gasboard Solution Correction Correction CO CO2 CH4 CnHm H2 O2
NDIR CO
NDIR CO2
NDIR CH4
NDIR CnHm
TCD H2
ECD O2 CO
CO2
CH4
CnHm H2 O2
With the combination of TCD H2 sensor and other NDIR CO,CO2,CH4,CnHm sensors, a corrected H2 reading can be resulted:
H2 = H2 + K0*CO+ K1*CO2+ K2*CH4+ K3* CnHm
Gas Heating value

6. Patents & Copyrights

7. Technologies & Strengths
NDIR dual beam sensor
CO, CO2, CH4, C3H8 and other molecules that composed of heterogeneous atoms, have an absorption spectrum in the infrared wavelength region. When the light with the typical absorption wavelength of a certain gas passes through the gas to be measured, its intensity will be obviously weakened, and the degree of intensity attenuation depends on the gas concentration. The relationship between them is complying with the Lambert-Beer law.
NDIR sensor structure

8. Technologies & Strengths
Modular Design
Each modular sensor equipped with a separate mini CPU to save its calibration and compensation data.
Modular design analyzer need no factory return maintenance any longer.

9. Technologies & Strengths
CH4 & CnHm measurement
The absorption spectrum of Hydrocarbons has much cross-interference (3.3μm).
Gasboard syngas analyzer used a special filter on CH4 sensor to eliminate interference from C2+ hydrocarbons.
CnHm can be measured directly with correction from the correct CH4 reading

10. Technologies & Strengths
Standard Gas (%)Vol
CH4
CnHm
99.9
99.88
2.83
62.64
62.35
1.77
15.23
15.16
0.42
3.65
3.73
0.09
C2H6
1.01
0.64
2.03
1.47
3.98
2.86
6.58
4.49
10.06
6.81
C3H8
0.43
1.76
0.01
1.78
6.66
0.05
6.63
9.99
0.08
9.98
nC4
1.51 2
2.91
iC4
1.26
1.99
0.03
2.4
nC5
0.998
1.71
iC5 1
0.02
1.94
CH4 & CnHm measurement
Interference from other hydrocarbons on CH4 reading is negligible.
Heating value factor of C2+hydrocarbons are in direct proportion to number of “C” element.
Measurement on C2, C3, C4 will be expressed as C3H8 reading.

11. Technologies & Strengths
CO & CO2 interference
The absorption wavelength of CO is near to 4.6μm, while CO2 near to 4.3μm;
Water vapor has almost continuous absorption zone in the range of 1 ~ 9μm wavelength;
Gasboard adopted special filter for CO to effectively reduce the cross-sensitivity from CO2 and vapor.

12. Technologies & Strengths
H2 measurement in gas mixture
Using Thermal Conductivity Detection technology.
CO & O2 slightly effect on H2 reading, but CO2, CH4 will affect H2 reading significantly.
Gasboard make linear correction on all background gases.

13. Technologies & Strengths
No effect from flow fluctuation
Gas flow flunctuation cause heat loss.
Big size, low precision and large sensor dead zone for traditional TCD sensor.
Gasboard equipped with a TCD sensor based on MEMS technology, using a patented bypass diffusion TCD cell (patent No.: ZL )
TCD sensor structure
Thermal Conductivity Detection tank
SS sintered plate
Seal ring
Pre-Amplifier board
TCD sensor
Measurement chamber
Bypass diffusion bore
Main flow path

14. Syngas Series Products
Infrared Syngas Analyzer（Online/Portable）
Online Syngas Monitoring System
Laser Raman Gas Analyzer
Ex-Proof type Infrared Gas Analyzer
Portable Natural Gas Heating Value Analyzer
Ultrasonic Gas Flowmeter
Gas Leakage Detector

15. Infrared Syngas Analyzer
Accredited national key new products by Ministry of Science and Technology
2017 Gold Award of Hubei Invention Patent
2016 Annual Product Excellence Award of China Instrument Society
Accurately measure CH4 and CnHm gas concentration individually.
Accurately measure H2 concentration in multiple gas mixture.
Sampling gas flow fluctuation has no effect on TCD H2 measuring result.
Measure gas composition and calculate heating value simultaneously.
CO、CO2、CH4、H2、O2、CnHm 、C2H2、C2H4
Online Syngas Analyzer
Gasboard-3100
Portable Syngas Analyzer
Gasboard-3100P

16. Online Syngas Analysis System
Gasboard-9031
（For sample gas contains low dust and vapor only）
Gasboard-9021
（For sample gas contains dust, vapor and tar）
Imported solenoid valves and sampling pump
Automatically PLC controlled sampling, draining and maintenance
CO、CO2、CH4、H2、O2、CnHm 、C2H2、C2H4
Online continuous monitoring with high stability & accuracy in long term basis.
No need for artificial attendant

17. Laser Raman Spectrum Gas Analyzer
LRGA-6000
One instrument to realize the detection of all components and calorific value of syngas in modern coal chemical process and furnace gas in metallurgical process.
National special project for significant scientific equipment development
Using Laser Raman gas characteristic fingerprint technology, less interference
Online real-time measurement
One instrument to solve all industrial process gas monitoring
Full-scale gas concentration measurement, detection range from %
No consumable parts, no carrier gas, low operation & maintenance cost
Automatically compensation from temperature and pressure, no drift
CO、CO2、H2、N2、O2、CH4、C2H2、C2H4、C2H6、
C3H8、H2S、H2O、iC4、nC4、NH3、COS...

18. Ex-Proof Infrared Gas Analyzer
National Ex-Proof Certificate （ExdⅡCT6 Gb）
All parts contact with sample gas used particular stainless steel or PTFE material, good resistance to heat and corrosion
Internal vapor & dust removal devices to achieve higher measurement accuracy and extend lifespan of analyzer.
CO、CO2、CH4、H2、O2、CnHm
Gasboard-3500（EX）

19. Portable Natural Gas Analyzer
Measure CH4 & CnHm concentration at the same time.
Calculate gas heating value automatically, can replace calorimeter with combustion method.
Online real time measurement, a more convenient and cost-effective way to replace Micro-GC.
Automatically sampling and analysis
Fast response, high accuracy
No consumable parts, low operation & maintenance cost
Compact design, easy to carry
CH4、CnHm、CO2 、 H2S 、 Heating Value 、Wobbe Index
Gasboard-3110P

20. Ultrasonic Gas Flow Meter
National Ex-Proof Certificate（ExdIICT4 Gb）
Ceramic gas flow sensor, high corrosion resistance
Wide rangeability & extremely low pressure drop
No moving parts, low maintenance
Compensation with Temperature and Pressure
Compact design & User friendly interface
DN32~DN150 for different pipeline diameter
Gas Flow Meter
Gasboard-7200

21. Gas Leakage Transmitter
CTD-01/CLD-01
CH4 、 CO、H2S Gas Transmitter
National Ex-Proof Certificate（ExdIICT6 Gb）
Sampling: Diffusion Type
Principle: NDIR miniature gas sensor or Long lifespan Electrochemical detection technology
Auto-zeroing with air
Stable performances, low drift, low maintenance

22. Typical Application Coking Furnace Sintering Furnace Lime Kiln
Coal Injection System
Hot Air Furnace
Gas holder
Converter
Heating Furnace

23. A1 behind Tar Precipitator
Application Field：Biomass Gasifier Process
System Model
Installation Point
Composition & Range
Analyzer Model
Gasboard-9021
A1 behind Tar Precipitator
O2：(0~2)%
Gasboard-3100
A2 behind desulfurizer
CH4：(0~5)%
CO2：(0~10)%
CO：(0~10)%
O2：(0~5)%
H2：(0~25)%
CnHm：(0~5)%
Heating Value
Biomass Gasifier Process Flow Diagram

24. Biomass Gasification Project Reference
Site: Jingmen Thermal Power Plant
Application: Coal coupled biomass power generation
Feedstock: Rice Husk
Solution: Gasboard-9021
Value:
Effectively improved the utilization efficiency of biomass gas, saved energy, reduced consumption, and guaranteed safe production.
Annually reduced carbon dioxide emission of nearly 60,000 tons.

25. A1 Behind Electrical Tar Precipitator
Application Field: Producer Gas
System Model
Installation Point
Composition & Range
Analyzer Model
Gasboard-9021
A1 Behind Electrical Tar Precipitator
O2：(0~2)%
Gasboard-3100
A2 Behind cyclone dust 
collector 
CH4：(0~5)%
CO2：(0~10)%
CO：(0~10)%
O2：(0~5)%
H2：(0~25)%
CnHm：(0~5)%
Gas generator process Flow Diagram

26. Application field: Producer gas
Site: Shanxi Shanhua Coal Chemical Group Co., Ltd.
Application: O2 monitoring before electrical tar precipitator
Gas media : producer gas from coal gasification
Solution: Gasboard-9021
Value: O2 content exceeding 0.8% may lead to
the electric tar precipitator explosion, so requires strict and high precision monitoring of the O2 content, to ensure of the safety of operation and production.

27. Application field: Blast Furnace Iron-making Process
System Model
Installation Point
Composition & Range
Analyzer Model
Gasboard-9031
A1 inlet /outlet of gravity dust collector
CH4：(0~30)%
CO2：(0~50)%
CO：(0~30)%
H2：(0~10)%
O2：(0~5)%
Gasboard-3100
A2 inlet /outlet of dust collector
Blast Furnace Iron-making Process Flow Diagram

28. Application field: Blast Furnace Iron-making Process
Site: Yunnan Haolong Group
Application: Blast furnace top gas
Solution: Gasboard-9031
Value:
Simultaneously monitor CO, CO2, H2, CH4, O2 and calorific value, helping operators to control the CO and CO2 content and their distribution in the furnace in real time.
Control the air and feedstock intake technology to achieve the purpose of protecting the furnace body, reducing the proportion of coke & iron, and reducing energy consumption.
H2 monitoring can effectively judge whether there is water leakage in the furnace.

29. Application field: Calcium carbide furnace
System Model
Installation Point
Composition & Range
Analyzer Model
Gasboard-9031
A1/A2
Furnace off-gas
CH4：(0~5)%
CO2：(0~10)%
CO：(0~100)%
O2：(0~5)%
H2：(0~25)%
Heating Value
Gasboard-3100

30. Application field: Calcium carbide furnace
Site: Tianye (Group) Co., Ltd
Application: Calcium carbide furnace off-gas utilization
Solution: Gasboard-9031
Value:
Monitor CO, CO2, H2, O2 and calorific value online, achieving 24 hours of uninterrupted operation. , continuous monitoring. It provides a real-time basis for the adjustment of the process, and at the same time verifies the exhaust gas standard of the calcium carbide plant. The accurate measurement index is an indispensable equipment for improving the utilization efficiency of the calcium carbide furnace gas, saving energy and reducing the consumption.

31. Gas composition monitoring point
Application field: Coal to MEG
System Model
Installation Point
Composition & Range
Analyzer Model
Gasboard-9021Ex
Gas composition monitoring point
CO/CO2/H2/N2/O2/
CH4/C2H2/C2H4/
C2H6/C3H8/H2S/iC4/nC4/H2O/NH3/COS/C2H4O/CH3OH/
CH3O-NO
LRGA-6000
**Above picture comes from internet.

32. Application field: Coal to MEG
Site: Yangmei Chemical Co., Ltd
Application: Coal to MEG
Solution: LRGA-6000
Value: Laser Raman Gas Analyzer LRGA-6000 is used for online real-time continuous monitoring of H2, N2, O2, CO, CO2, CH4, NO, CH3OH, CH3O-NO, H2S, COS and so on recyclable gas components that generated during the entire coal to MEG production process, and need to be controlled to emission with low pollution. It can help improve the purity of ethylene glycol in production, ensure the synthesis rate of oxalate ester and the recovery rate of nitrite ester, reduce pollution gas emissions and achieve green, clean and environment-friendly production.

33. Ex-Proof Infrared Gas Analyzer
Coal Bed Methane
Ex-Proof Infrared Gas Analyzer
Gasboard-3500

34. Laser Raman Gas Analyzer
Biomass Gasification
Laser Raman Gas Analyzer
LRGA-6000

35. Natural Gas Grid Portable Natural Gas Analyzer
Gasboard-3110P
Laser Raman Gas Analyzer
LRGA-6000

36. Hubei Cubic-Ruiyi Instrument Co., Ltd
Add：Fenghuang No.3 Road, Fenghuang Industrial Park
Eastlake Hi-tech Development Zone
Wuhan , Hubei Province, China
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