化工进展
化工進展
화공진전
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2013年
7期
1515-1518
,共4页
混醇废液%正丙醇%共沸精馏%共沸剂
混醇廢液%正丙醇%共沸精餾%共沸劑
혼순폐액%정병순%공비정류%공비제
mixed-alcohol wastewater%normal propyl alcohol%azeotropic distillation%entrainer
采用共沸精馏技术处理合成氨工艺流程中脱碳工段产生的含大量正丙醇混醇废液。本文采用共沸精馏的方法，选用合理可行的共沸剂，在间歇精馏塔内进行正丙醇-水共沸物系的分离实验，优化了该共沸精馏技术处理工业混醇废液的最佳操作条件。结果表明：采用共沸精馏方法，以环己烷为共沸剂，可使原料液中20%～40%的正丙醇含量提纯至质量分数≥95%，塔顶回收的共沸剂质量分数≥97%。该工艺流程较大地减小了设备投资和能耗。实验表明采用共沸精馏技术用于正丙醇-水共沸物系的分离具有可靠性和实用性。
採用共沸精餾技術處理閤成氨工藝流程中脫碳工段產生的含大量正丙醇混醇廢液。本文採用共沸精餾的方法，選用閤理可行的共沸劑，在間歇精餾塔內進行正丙醇-水共沸物繫的分離實驗，優化瞭該共沸精餾技術處理工業混醇廢液的最佳操作條件。結果錶明：採用共沸精餾方法，以環己烷為共沸劑，可使原料液中20%～40%的正丙醇含量提純至質量分數≥95%，塔頂迴收的共沸劑質量分數≥97%。該工藝流程較大地減小瞭設備投資和能耗。實驗錶明採用共沸精餾技術用于正丙醇-水共沸物繫的分離具有可靠性和實用性。
채용공비정류기술처리합성안공예류정중탈탄공단산생적함대량정병순혼순폐액。본문채용공비정류적방법，선용합리가행적공비제，재간헐정류탑내진행정병순-수공비물계적분리실험，우화료해공비정류기술처리공업혼순폐액적최가조작조건。결과표명：채용공비정류방법，이배기완위공비제，가사원료액중20%～40%적정병순함량제순지질량분수≥95%，탑정회수적공비제질량분수≥97%。해공예류정교대지감소료설비투자화능모。실험표명채용공비정류기술용우정병순-수공비물계적분리구유가고성화실용성。
Azeotropic distillation technology was used to treat industrial mixed-alcohol wastewater coming from ammonia synthesis. Using this technology and taking a feasible azeotropic agent,the distillation experiment of 1-propanol-water azeotrope system was conducted in batch distillation column. The operating condition of treating industrial mixed alcohol waste water was optimized. The results indicated that using this technology and taking cyclohexane as azeotropic agent,1-propanol in raw material could be purified from 20%~40% to ≥95%,and cycloihexane entrainer at the tower top could be purified to ≥97%. This technology greatly reduced equipment investment and energy consumption. The experimental results showed that using azeotropic distillation for separation of 1-propanol - water azeotrope system could be reliable and practicable.
