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HCl氣體生產中要控制氫氣過量

返回  打印  發布時間:2013-12-18 點擊:12702

    氯化氫的(de)制(zhi)備方法中(zhong),最(zui)常用的(de)是(shi)合成(cheng)法,合成(cheng)法制(zhi)備氯化氫工(gong)藝在(zai)眾多(duo)制(zhi)備方法中(zhong)技(ji)術最(zui)為(wei)成(cheng)熟。具體操(cao)作步驟流程如下(xia):

    根據氫(qing)(qing)(qing)氣(qi)(qi)與氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)氣(qi)(qi)反(fan)(fan)應(ying)(ying)(ying)方程式,兩者理論是按照1﹕1分(fen)子(zi)比合成(cheng)(cheng)(cheng)的(de)(de),但(dan)工(gong)業(ye)上都是控(kong)制氫(qing)(qing)(qing)氣(qi)(qi)過(guo)量(liang)(liang)的(de)(de)。一般在氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)化(hua)氫(qing)(qing)(qing)合成(cheng)(cheng)(cheng)中(zhong)(zhong)(zhong)(zhong)控(kong)制分(fen)子(zi)比為氫(qing)(qing)(qing)氣(qi)(qi)﹕氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)氣(qi)(qi)=(1.05~1.1)。在合成(cheng)(cheng)(cheng)鹽酸的(de)(de)合成(cheng)(cheng)(cheng)爐中(zhong)(zhong)(zhong)(zhong),氫(qing)(qing)(qing)氣(qi)(qi)過(guo)量(liang)(liang)還多(duo)些。氫(qing)(qing)(qing)氣(qi)(qi)過(guo)量(liang)(liang)最(zui)多(duo)不(bu)能超過(guo)10%,不(bu)然會造成(cheng)(cheng)(cheng)產(chan)品氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)化(hua)氫(qing)(qing)(qing)純度下降,乃至影響氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)乙烯收率(lv)。而氫(qing)(qing)(qing)氣(qi)(qi)過(guo)量(liang)(liang)超過(guo)20%則有可能形成(cheng)(cheng)(cheng)爆炸混(hun)合物,不(bu)利于安(an)全生(sheng)(sheng)產(chan)。 但(dan)如果(guo)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)氣(qi)(qi)過(guo)量(liang)(liang),則游(you)離(li)(li)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)易與爐壁以及冷卻(que)管等反(fan)(fan)應(ying)(ying)(ying)生(sheng)(sheng)成(cheng)(cheng)(cheng)黃色結晶氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)化(hua)鐵而腐蝕設備。游(you)離(li)(li)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)還將在降膜(mo)式吸收塔中(zhong)(zhong)(zhong)(zhong)與水反(fan)(fan)應(ying)(ying)(ying)生(sheng)(sheng)成(cheng)(cheng)(cheng)次氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)酸,對(dui)不(bu)透性石墨起緩慢(man)的(de)(de)局部氧(yang)化(hua)作用。即使(shi)少量(liang)(liang)的(de)(de)游(you)離(li)(li)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv),也將在氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)乙烯合成(cheng)(cheng)(cheng)的(de)(de)混(hun)合器(qi)中(zhong)(zhong)(zhong)(zhong)與乙炔發生(sheng)(sheng)氣(qi)(qi)相反(fan)(fan)應(ying)(ying)(ying),生(sheng)(sheng)成(cheng)(cheng)(cheng)極(ji)易爆炸的(de)(de)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)乙炔,造成(cheng)(cheng)(cheng)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)乙烯合成(cheng)(cheng)(cheng)系統的(de)(de)爆炸。因(yin)此(ci),為杜(du)絕(jue)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)化(hua)氫(qing)(qing)(qing)中(zhong)(zhong)(zhong)(zhong)產(chan)生(sheng)(sheng)游(you)離(li)(li)氯(lv)(lv)(lv)(lv)(lv)(lv)(lv),合成(cheng)(cheng)(cheng)反(fan)(fan)應(ying)(ying)(ying)中(zhong)(zhong)(zhong)(zhong)嚴(yan)格控(kong)制氫(qing)(qing)(qing)氣(qi)(qi)過(guo)量(liang)(liang)并控(kong)制在5—10%,并隨(sui)時(shi)注意氯(lv)(lv)(lv)(lv)(lv)(lv)(lv)、氫(qing)(qing)(qing)流量(liang)(liang)和(he)視鏡(jing)中(zhong)(zhong)(zhong)(zhong)燃(ran)燒火焰的(de)(de)顏色變化(hua)。

    工(gong)(gong)藝(yi)(yi)流程(cheng):1.氯化(hua)氫(qing)(qing)(qing)合成(cheng)工(gong)(gong)藝(yi)(yi)流程(cheng) 來自氯氫(qing)(qing)(qing)處理工(gong)(gong)序(xu)的(de)(de)氯氣(qi)(qi)(qi)(qi)、氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi),經(jing)氯氣(qi)(qi)(qi)(qi)、氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi)緩沖(chong)罐、氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi)阻(zu)(zu)火器(qi)進入(ru)二合一(yi)合成(cheng)爐(lu)內燃燒,生成(cheng)氯化(hua)氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi)體(ti)自爐(lu)頂排出(chu)(chu),經(jing)空(kong)氣(qi)(qi)(qi)(qi)冷卻(que)管(guan)、氯化(hua)氫(qing)(qing)(qing)緩沖(chong)罐進入(ru)石墨(mo)冷卻(que)器(qi),冷卻(que)后(hou)的(de)(de)氯化(hua)氫(qing)(qing)(qing)送至轉化(hua)工(gong)(gong)序(xu)。 流程(cheng)方框圖 電解----氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi)緩沖(chong)罐-----阻(zu)(zu)火器(qi)---(電解---氯氣(qi)(qi)(qi)(qi)緩沖(chong)罐)合成(cheng)爐(lu)----空(kong)冷管(guan)----氯化(hua)氫(qing)(qing)(qing)緩沖(chong)罐---石墨(mo)冷---轉化(hua)&降膜(mo)吸(xi)(xi)收(shou);2.制酸(suan)的(de)(de)工(gong)(gong)藝(yi)(yi)流程(cheng) 合成(cheng)的(de)(de)氯化(hua)氫(qing)(qing)(qing)氣(qi)(qi)(qi)(qi)體(ti)從石墨(mo)冷卻(que)器(qi)出(chu)(chu)口經(jing)降膜(mo)吸(xi)(xi)收(shou)系統,大部分(fen)氯化(hua)氫(qing)(qing)(qing)被稀(xi)酸(suan)吸(xi)(xi)收(shou),生成(cheng)鹽酸(suan)儲(chu)存。一(yi)部分(fen)未吸(xi)(xi)收(shou)的(de)(de)氯化(hua)氫(qing)(qing)(qing)經(jing)尾(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)吸(xi)(xi)收(shou)塔吸(xi)(xi)收(shou)后(hou),下酸(suan)到(dao)降膜(mo)吸(xi)(xi)收(shou)塔,未被尾(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)吸(xi)(xi)收(shou)塔吸(xi)(xi)收(shou)的(de)(de)氣(qi)(qi)(qi)(qi)體(ti)經(jing)水力噴(pen)射器(qi)回到(dao)循環液(ye)槽,最后(hou)少量的(de)(de)尾(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)氯化(hua)氫(qing)(qing)(qing)經(jing)堿(jian)洗(xi)塔被堿(jian)液(ye)吸(xi)(xi)收(shou)。未被吸(xi)(xi)收(shou)的(de)(de)尾(wei)(wei)(wei)氣(qi)(qi)(qi)(qi)放(fang)空(kong)。

    我公司(si)專業經營淄博萬達利特種(zhong)氣體公司(si)生產的氯化氫,產品性能(neng)先(xian)(xian)進(jin),質量(liang)(liang)穩定,處于(yu)國內領先(xian)(xian)地位(wei),達到(dao)國際(ji)先(xian)(xian)進(jin)水平(ping)。堅持“科(ke)(ke)技領先(xian)(xian),質量(liang)(liang)第一”的經營方針。以質量(liang)(liang)為(wei)中(zhong)心(xin),以科(ke)(ke)技開發和科(ke)(ke)學管理為(wei)手段,積極創新,保(bao)持公司(si)的技術研發活力(li),為(wei)客戶提(ti)供一流的產品質量(liang)(liang)和技術服務。

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