Cooling cycle gas - in ammonia synthesis under high pressure simplify by eliminating membrane heat exchangers

摘要

Cooling of cycle gas in NH3 synthesis under high press. is achieved by contacting opt precooled cycle gas with circulating liquid NH3 flowing in amt. 1-10 times amt. of NH3 produced in unit time. This liquid NH3 is cooled to temp. not higher than min. temp. required in cycle gas before contact with cycle gas again. Complex membrane heat exchangers can be eliminated from cycle gas flow path.