Acid gas recovery from small catalytic units
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The annual processing capacity of our company's catalytic device is about 13~15wt, so the amount of acid gas is small, so it is not suitable for investing in the construction of larger devices. Currently, the method of using soda ash to absorb acid gas is used, but there are two problems. One is that the pressure is often suppressed after the recovery device is put into use. The second is that the concentration of sodium hydrosulfide produced is low and cannot meet the conditions for sale. Please give me some advice, thank you!
Consideration can be given to producing thiourea, which is a simple process with low investment.
It can be directly used as fuel gas for boilers or heating furnaces to be recycled and used to reduce the amount of emission flares. Subsequent installation on small devices does not seem to be economical.
Thiourea is a better choice, but you must pay attention to environmental protection
The size of the circulation gap in the system causes pressure suppression. It adopts multi-tower absorption and recycling.