Partial conversion of carbon monoxide

Most enterprises using fixed-bed gasifiers adopt a full low-temperature shift process to address the issue of increasing the carbon monoxide content after shift； This is because this method can effectively reduce the organic sulfur content in the shifted gas, and it also allows the shift system to save steam ； Another method is the gas distribution process; some companies use this type of gas control approach in pressurized gasification processes, especially in the decarburization process. The gas used for methanol production is passed through a small tower to save energy, thereby implementing the gas distribution process ； At the end of the 1980s and the beginning of the 1990s, in the process of producing alcohols, the principles of energy-saving measures related to low-temperature conversion were not well understood. A gas extraction process was used, involving pumping air from the outlet of the medium-to-low temperature stage and sending it to the low-temperature conversion outlet; this method had many drawbacks. These included effects on the inlet temperature and peak temperature of the catalyst used for low-temperature conversion, as well as impacts on the service life of the extraction control valves due to differences in temperature and pressure. Overall, these issues had significant consequences for companies in terms of energy consumption.