广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
2期
170-171
,共2页
吕江平%伍家卫%王晓萍%刘哲
呂江平%伍傢衛%王曉萍%劉哲
려강평%오가위%왕효평%류철
筛板精馏塔%塔顶温度%塔顶产品组成:回流比%气液相平衡
篩闆精餾塔%塔頂溫度%塔頂產品組成:迴流比%氣液相平衡
사판정류탑%탑정온도%탑정산품조성:회류비%기액상평형
sieve plate distillation tower%tower top temperature%tower top product composition%reflux ratio%vapor-liquid equilibrium
理论上,对于连续稳定的精馏操作,塔顶温度与气液组成存在一定的对应关系。实验发现:对于不同的操作状况,即使塔顶温度相同,塔顶产品组成却不一定相同;而当塔顶温度不同时,塔顶产品组成却可能相同;但不论何种情况,只要塔顶温度升高,则塔顶产品组成必定下降。文章对实验数据进行了分析,并指出由于实际操作与理论模型存在一定的差距,仅仅根据精馏塔顶温度判断塔顶产品组成并不可靠,因此文章对于实际生产操作具有一定的借鉴作用。
理論上,對于連續穩定的精餾操作,塔頂溫度與氣液組成存在一定的對應關繫。實驗髮現:對于不同的操作狀況,即使塔頂溫度相同,塔頂產品組成卻不一定相同;而噹塔頂溫度不同時,塔頂產品組成卻可能相同;但不論何種情況,隻要塔頂溫度升高,則塔頂產品組成必定下降。文章對實驗數據進行瞭分析,併指齣由于實際操作與理論模型存在一定的差距,僅僅根據精餾塔頂溫度判斷塔頂產品組成併不可靠,因此文章對于實際生產操作具有一定的藉鑒作用。
이론상,대우련속은정적정류조작,탑정온도여기액조성존재일정적대응관계。실험발현:대우불동적조작상황,즉사탑정온도상동,탑정산품조성각불일정상동;이당탑정온도불동시,탑정산품조성각가능상동;단불론하충정황,지요탑정온도승고,칙탑정산품조성필정하강。문장대실험수거진행료분석,병지출유우실제조작여이론모형존재일정적차거,부부근거정류탑정온도판단탑정산품조성병불가고,인차문장대우실제생산조작구유일정적차감작용。
Theoretically,about continuously and stability distillation operation,there was a certain correspondence between the tower top temperature and vapor-liquid composition.It was found that for different operating conditions,even if the tower top is at the same temperature,the top product composition is not necessarily the same;When it is not the same temperature,the tower top product composition may be same;in either case,as long as the tower top temperature increases,the tower top product composition will decrease.In the paper,the experimental data was analyzed,point of view was pointed out that as there is a certain gap between the actual operation and the theoretical model,to determine the product composition based solely on the distillation tower top temperature is not reliable.So the paper has a certain reference for the actual production operations.