What are some methods for recovering CO2 emitted by low-temperature methanol washing systems?
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We here once tried to use the capacity of decarburization (Benfield process) to absorb a portion of it, and then mix the regenerated gas to feed it to the urea production unit. However, this method has a limited processing capacity and causes a deterioration in the quality of the solution in the decarburization system, so it was discontinued after a period of trial operation. Our company has excess urea production capacity; I would like to ask how we can make use of this CO2 Additionally, how is the CO2 emitted by the low-temperature methanol washing system recovered and utilized?
Companies such as BOC at the United Nations produce food-grade CO2. The CO2 produced by low-temperature methanol washing units is generally used for urea production, and the excess CO2 can be converted into high-quality CO2 through solvent absorption, membrane separation, and adsorption methods.
The key is to conduct market research; if all carbon dioxide from industry were recovered, then the greenhouse effect would no longer exist. How can so much carbon dioxide be utilized?
Apart from being used for urea and to produce small amounts of food-grade material, a large amount of CO2 is still released into the atmosphere.