关于合成氨的毕业论文

Synthesize the ammonia industry is a foundation chemistry industry of a.Its yield reside various chemical engineering product of first.The ammonia is an importance of nitrogen vegetable the fertilizer synthesize an ammonia industry is a foundation chemistry industry of a., In addition to lime nitrogen, other nitrogen vegetable all of fertilizers synthesize an ammonia first, then process into various An salt or urea.Synthesize a work segment is synthesize an ammonia produce is an end a work preface, front work the preface deliver of the qualified air synthesize an ammonia, Be industry the raw material provide behind product work preface usage.Synthesize spirit's is to synthesize an ammonia produce is an end a the work preface be most also in the whole production line importance of one wreath, produce a rate synthesize of the quality be direct influence whole turn fatty of produce.This time graduation design the topic is to synthesize 80,000 ton/years: work segment to synthesize an ammonia to equip medium synthesize system of design. The ammonia synthesize process main imply:Synthesize of ammonia;Ammonia of separate;Don't reaction air of repair spirit, sloth air of put empty, increase to press with circulation.The ammonia synthesize craft process, because of pressure Gao, the ammonia synthesize a rate low, the ammonia be easy to congealed separate.Medium press scope general is 20-32 Mpa. The main contents of design include material Heng of synthesize the work preface to calculate with calories Heng calculate, and the craft of the main equipments calculation(1)Synthesize a tower craft a calculation:To synthesize a tower material calculation, calories calculation and calculation synthesize the reaction of tower hot. (2)Water cold machine craft calculation:The choice pour a spread type a row tube water cooler.Combine to the water cold machine enter machine and artifacts to anticipate to carry on Heng calculate with calculation take of hot air and water go into take out calories. (3)The ammonia separate a machine craft a calculation:Enter artifacts to anticipate towards separating a machine of, the artifacts anticipate material Heng calculate.The calories Heng calculate an ammonia separation machine income hot and expenditure hot. (4)Cold exchanger craft calculation:Choose a row tube a type to change a hot machine, the hot air walk tube distance, the cold air walk hull distance.To enter spirit material and artifacts to anticipate to carry on Heng calculate, and to the air take into tropical zone hot Heng calculate. (5)Ammonia cold machine craft calculation:Choose the sign type ammonia cold air, the hot air walk tube distance, the liquid ammonia steam walk hull distance.The rightness enter artifacts to anticipate with the artifacts anticipate to carry on material Heng calculate, to the ammonia cold machine get into to pass in and out calories to carry on Heng calculate. Keyword:Synthesize an ammonia, synthesize tower, the ammonia cold machine, the ammonia separate a machine