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N-甲基二乙醇胺的生產工藝

目前,我國大型石油化工廠、化肥廠、天然氣凈 化廠須進行脫硫及制硫。N-胺簡稱 ,是一種新興的脫硫、脫碳溶劑,20世紀70年 代國外已開始在工業上應用,80年代國內相繼完成 了脫硫和脫碳工業化試驗,90年代后期在工業上應 用,到本世紀初國內已獲得廣泛推廣。MDEA由一 甲胺和環氧乙烷反應而得。

2.1 hechengfanying

yijiaanhehuanyangyiwanfenbiejilianghou,jinruhunheqihun he,zai6.3 mpahe135 ℃tiaojianxiafanyingzhihou,jinxingjuhe fanying。fanyingchuqi,fanyingxuyaodereliangyouzhengqizhijiejinru fanyingqidibu。fanyingguochengzhong,wuliaofanyingchanshengdedaliangre lianghuishifanyingwendujijushangsheng,weileweichifanyingwendubu bian,liyongfanyingqidechukouchuwenduhefanyingqineideqixiangwen du,duifanyingqidingbulengqueqidexunhuanshuiliangjinxingkongzhi。

2.2 tuoan

fanyingwujinrutuoanta,dabufenweifanyingdeyijiaancong tadingbuchulai,jingtadinglengningqilengquehouxunhuanshiyong。tuoan tadibudeanyezhiyicishanzhengta。

2.3 shanzheng

congtuoantachulaidefanyingwuzaiyicishanzhengtanei,shanzheng chubufenyijiaan,zaijingtadinglengningqilengquehoujinruercixi shouta,congyicishanzhengtadibuchulaideyetijinruercishanzhengta,jiangweifanyingdeyijiaanshanzhengchulai。

2.4 xishou

ercishanzhengtatadingchulaideqiti,jinruyicixishouta xiabu,yongchuliutadeyibufenqingzufenzuoxishouyejinxingxi shou。yicixishoutafuchulaideyetijinruercixishoutazuo weixishouye。yicishanzhengtatadingchulaideqixiangjinglengquehou, jinruercixishoutaxiabu,yongyicixishoutadichulaidexishou yejinxingxishou。ercixishoutatadingchulaideqiti,jinxingwei qichulipaifang。

2.5 chuliu

congercishanzhengtadibuchulaifanyingchanwu,jinruchuliuta zhongbu,tadingzhengchuqingzufenanqiti,zaijingtadinglengningqileng quehou,fenlianglu,yilusongdaotadingbuzuoweichuliutadetading huiliuye,lingyilusongzhiyicixishoutazuoxishouyeshiyong。chu liusuoxuyaodereliangyouchuliutadizaifeiqiyongzhengqijiarelai gonggei。chuliutadezhenkongxitongyouchuliutadezhenkongbengjizu chouzhenkong。

2.6 jingliu

tuoquqingzufendefanyingchanwucongchuliutatadichulai,jing jingliutajinliaobengchouchusongzhijingliutazhongbu,tongguojingliuzuoyong,congtadingchulaideqitijingjingliutadinglengningqiyongxunhuanshui lengquehou,fenlianglu,yilusongzhijingliutadingbuzuoweijingliuta dehuiliuye,lingyiluzuoweizhuangzhidezhuyaochanpin。jingliusuoxu dereliangyongjingliutadizaifeiqiyongzhengqijiaregonggei。congta dichulaidezhongzufenjingjingliutadicao,tongguocanyeshusongbengsong zhicanyeshoucao。

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