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Syngas Analyzer Models

Very basically, gasification is a process where a fuel or feedstock is ‘cooked’ in low oxygen conditions. The equipment that carries out this whole process is usually called a gasifier.

Different zones inside the gasifier support drying, pyrolysis, combustion, and reduction reactions. The whole process produces gas that contains primarily carbon monoxide and hydrogen. These gases can be carried away before they combust, and then used elsewhere for energy. The gas is often called synthesis gas or syngas for short. It has also been referred to in the past as producer gas or town gas.

syngas-process
gasifier-sections

Gasifiers can be designed to receive various types of input feedstocks such as biomass, coal, petroleum residues, etc. Various chemical and energy production process can in turn be fed by a gasifier. Each process typically requires a gas input of a specific makeup. This is why an analyzer system is frequently required between the output of the gasifier plant or at the input of the receiving process.

If the gasifier is being used as a source of energy, a gas analyzer will help determine the energy content of the gas before it is burned. Based on the results, adjustments can be made to the gasifier to optimize the heating value of the gas produced.

syngas-diagram

Syngas / Gasification Analyzer Models

Relevant Nova gas analyzer systems include the following models:

Both series of analyzers are available with analysis of:

  • Oxygen (O2) by electrochemical sensor
  • Carbon Monoxide (CO) by infra-red detector
  • Carbon Dioxide (CO2) by infra-red detector
  • Methane (CH4) by infra-red detector
  • Hydrogen (H2) by thermal-conductivity detector

In Nova analyzers, the hydrogen reading is actively compensated for analytical interferences from CO / CO2 / CH4. This enables us to combine the durability of a thermal-conductivity detector while retaining the functional accuracy of a multi-gas instrument.

Nova equipment is frequently installed outdoors and in industrial environments. Our continuous analyzers are supplied in steel weather-proof cabinets. They are able to function in temperatures from -22 F to over 100 F with the appropriate weather package options.

Sample Conditioning

Syngas frequently contains moisture, particulate, and even corrosive gases. It is important to remove these constituents from the sample gas before analyzing it. This is primarily important in the case of continuous gas analyzers.

The first step is to extract a sample and remove the particulate. The Nova Model 7240 Probe and Heated Filter system removes particulate before the sample gas cools excessively. This will maximize filtration efficiency and sample gas flow into the analyzer.

In some cases, the produced gas contains a variety of contaminants that should be removed from the sample prior to entering the analyzer. Gasification plants that have municipal waste as their feed stock are frequently in this category. One method of removing many of these contaminants is by water-washing. The Nova 7300 Water-Wash System thoroughly mixes the sample and runs it through a specialized column of water. This dissolves any water-soluble contaminants and will eliminate any residual solids from the sample.

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Inquire about these products:

 

For some additional information about gasification, see these two posts from the Nova blog:

 

Ready for the next step?  Please contact our Sales team for more information.

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