Tsarin Bosch-Meiser

Tsarin Bosch-Meiser tsari ne na masana'antu don samar da urea mai yawa, sinadarin nitrogen mai mahimmanci. An ba da izini a 1922  kuma an sanya masa suna bayan masu gano shi, masana sunadarai na Jamus Carl Bosch da Wilhelm Meiser.  tsari ya kunshi manyan halayen daidaito guda biyu, tare da jujjuyawar da ba ta cika ba na masu amsawa. 

Gabaɗaya jujjuyawar  da  zuwa urea shine exothermic, tare da amsawar zafi daga amsawar farko da ke motsa na biyu. Yanayin da ke goyon bayan samar da urea (zafin jiki) suna da mummunar tasiri a kan daidaitattun samar da carbamate. Yanayin tsari sulhu ne: mummunar tasiri a kan amsawar farko na zafin jiki mai girma (kimanin 190 ° C) da ake buƙata don na biyu ana biyan ta hanyar gudanar da tsari a ƙarƙashin matsin lamba (140-175 bar), wanda ke son amsawar farko. Kodayake ya zama dole a matse carbon dioxide mai iskar gas zuwa wannan matsin lamba, ana samun ammoniya daga masana'antar samar da ammoniya a cikin ruwa, wanda za'a iya zuba shi cikin tsarin da yawa a tattalin arziki. Don ba da damar jinkirin lokacin amsawar urea don isa ga daidaito, ana buƙatar babban sararin amsawa, don haka reactor na kira a cikin babban tsire-tsire na urea yana da babban taskar matsin lamba.    

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