What process treatments are required for the gas entering the methanol tower before it goes into the synthesis tower? What are the control indicators? The process is a coal gasification process
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What process treatments are required for the gas entering the methanol tower before it goes into the synthesis tower? What are the control indicators? The process is a coal gasification process
Ensure that hydrogen sulfide, CL, iron carbonyl, and nickel are within acceptable levels. Generally, low-temperature methanol washing is sufficient.
The process gas prior to methanol synthesis undergoes shift conversion; in our plant, the CO level in the shift converter is kept at 21%. Subsequently, desulfurization and decarburization are carried out in the low-pressure scrubber to ensure that the total sulfur content is below 0.1 ppm, while the CO2 level reaches around 3.42%
The process gas prior to methanol synthesis undergoes shift conversion; in our plant, the CO level in the shift converter is kept at 21%. Subsequently, desulfurization and decarburization are carried out in the low-pressure scrubber to ensure that the total sulfur content is below 0.1 ppm, while the CO2 level reaches around 3.42%
First, the CO content in the gas to be processed must be adjusted to around 20% through a transformation process; thereafter, total sulfur levels must be reduced to below 0.1 ppm using low-temperature methanol washing, while keeping the CO2 content in the purified gas at 2.5%-3.0%.
Mainly, the purification unit is used for desulfurization and decarburization; generally, the sulfur content is kept at 0.2 ppm before it enters the synthesis tower. Advanced desulfurization is carried out within the synthesis unit, resulting in a sulfur content of 20 ppb after this process.