天津大学学报
天津大學學報
천진대학학보
JOURNAL OF TIANJIN UNIVERSITY SCIENCE AND TECHNOLOGY
2014年
9期
842-848
,共7页
反应精馏%吸收%硅烷%歧化%反应动力学
反應精餾%吸收%硅烷%歧化%反應動力學
반응정류%흡수%규완%기화%반응동역학
reactive distillation%absorption%monosilane%disproportionation%reaction kinetics
提出一种反应精馏耦合吸收工艺生产硅烷，用于提高反应精馏塔塔顶温度．在Aspen Plus中建立流程进行模拟，使用平衡级模型，其中反应过程考虑了反应动力学的影响和化学平衡的限制．通过调节塔顶采出量和回流比确定操作参数．模拟结果表明，该流程的硅烷收率接近100%，塔顶温度为-17℃．考察了吸收剂的量、循环物流进料位置和持液量等影响因素．同时，对反应精馏生产硅烷的单塔流程、双塔流程和吸收流程进行了经济评估，结果显示吸收流程具有塔顶温度高、设备维护成本低、操作成本适中等优势，适用于工业生产．
提齣一種反應精餾耦閤吸收工藝生產硅烷，用于提高反應精餾塔塔頂溫度．在Aspen Plus中建立流程進行模擬，使用平衡級模型，其中反應過程攷慮瞭反應動力學的影響和化學平衡的限製．通過調節塔頂採齣量和迴流比確定操作參數．模擬結果錶明，該流程的硅烷收率接近100%，塔頂溫度為-17℃．攷察瞭吸收劑的量、循環物流進料位置和持液量等影響因素．同時，對反應精餾生產硅烷的單塔流程、雙塔流程和吸收流程進行瞭經濟評估，結果顯示吸收流程具有塔頂溫度高、設備維護成本低、操作成本適中等優勢，適用于工業生產．
제출일충반응정류우합흡수공예생산규완，용우제고반응정류탑탑정온도．재Aspen Plus중건립류정진행모의，사용평형급모형，기중반응과정고필료반응동역학적영향화화학평형적한제．통과조절탑정채출량화회류비학정조작삼수．모의결과표명，해류정적규완수솔접근100%，탑정온도위-17℃．고찰료흡수제적량、순배물류진료위치화지액량등영향인소．동시，대반응정류생산규완적단탑류정、쌍탑류정화흡수류정진행료경제평고，결과현시흡수류정구유탑정온도고、설비유호성본저、조작성본괄중등우세，괄용우공업생산．
A reactive distillation coupled with absorption process for monosilane production was proposed for improv-ing condenser temperature. The process was developed and simulated in Aspen Plus. Accurate results could be ob-tained when the equilibrium stage model took reaction kinetics and chemical equilibrium into account. The operating parameters were determined by varying the distillate rate and the reflux ratio. The results show that the yield of monosilane approaches 100% and the condenser temperature is-17℃. Effects of absorbent rate,recycle stream stage and liquid holdup were investigated. The operating costs of single column process,double column process and absorption process were estimated. The evaluation results demonstrate the absorption process is feasible in industry because of its high condenser temperature,low equipment maintenance cost and moderate operating cost.
