Title: Producing method for synthetic ammonia
Application Number: 95112804 Application Date: 1995.12.05
Publication Number: 1124230 Publication Date: 1996.06.12
Approval Pub. Date: Granted Pub. Date: 1998.09.09
International Classifi-cation: C01B3/50,C01C1/04
Applicant(s) Name: Lianyungang Chemical Fertilizer Factory Address: 222023
Inventor(s) Name: Zhao xianghai
Attorney & Agent: ZHANG YUNNI
Abstract:
     The invented method makes the prepared mixed gas undergo the processes of sweetening, carbon monoxide transformation and deprivation of CO2, then refining to obtain H2 and N2, making synthetic ammonia and entering the liquid ammonia storage tank. The gas in the liquid ammonia storage tank is directly added to the procedure of making up ammonia of the absorption liquid of the refining process to separate and send out the residual gas. the absorption liquid firstly absorbs CO, CO2, and H2S and separates them, then conducts water cooling, it would be better to make the gas of liquid ammonia storage tank be fed in the water-cooled absorption liquid to make up ammonia, then the absorptionliquid is sent to absorption tower for circulation application after buffering, recooling by water, ammonia cooling and booster. The ammonia recovery rate of the liquid ammonia storage tank gas up to 96% odd.
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