Portable methane converterIt is a commonly used equipment in laboratories, mainly used to convert carbon monoxide (CO) and carbon dioxide (CO2) into methane (CH4) for gas chromatography analysis by hydrogen flame ionization detector (FID). The working principle is based on the methane reaction, which uses nickel catalyst as a catalyst to reduce CO and CO2 to CH4 under the protection of hydrogen gas (H2). The specific process is to fill the converter with nickel catalyst, and use a temperature controller to introduce a certain proportion of hydrogen gas into the stainless steel tube filled with catalyst at 360-380 ℃, so as to convert CO and CO2 into CH4. In this way, trace amounts of CO and CO2 in various gases can be analyzed using gas chromatography with FID detector, just like CH4.

　　Portable methane converterThe conversion reaction system:

1. Reactor body: It is the core component of methane conversion reaction, usually made of high temperature resistant and corrosion-resistant materials such as stainless steel, special alloys or ceramics. The internal design of the reactor has specific structures to promote sufficient contact and reaction between methane and the catalyst, such as catalytic beds, packing layers, etc., to provide favorable conditions for the reaction.

2. Catalyst: It is a key substance that promotes the conversion reaction of methane, can reduce the activation energy of the reaction, and improve the reaction rate and efficiency. The type and performance of catalysts depend on the specific conversion reaction, and can be noble metal catalysts (such as platinum, palladium, etc.), metal oxide catalysts (such as nickel oxide, copper oxide, etc.), or other novel catalysts. Catalysts usually exist in the form of particles or coatings in reactors, and come into full contact with methane to exert their effects.

3. Heating device: provides the required heat for the conversion reaction, as methane conversion reaction usually requires certain temperature conditions to proceed. The heating device can be an electric heating element (such as heating wire, heating plate, etc.) that generates heat through electric current; It can also be a combustion heating system that uses the heat released by fuel combustion to heat the reactor. At the same time, it is also equipped with a temperature control system that can accurately control the reaction temperature, ensuring that the reaction proceeds within the optimal temperature range.

4. Temperature monitoring and control system: Real time monitoring of the temperature inside the reactor and feedback of the temperature signal to the control system. The control system automatically adjusts the power of the heating device or the firepower of the combustion system based on the set temperature value and actual measurement value to maintain the stability of the reaction temperature. Temperature sensors (such as thermocouples, thermal resistors, etc.) are important components for temperature monitoring, and their measurement accuracy and response speed directly affect the effectiveness of temperature control.