摘要
为验证碳三催化-精馏耦合工艺,在中国石化北京燕山分公司化工一厂高压脱丙烷塔附近建立φ300 mm侧线催化精馏塔进行试验。考察了催化精馏塔的操作压力、碳三馏分的液态空速和回流比对原料中丙炔和丙二烯催化加氢性能的影响。试验结果表明,在理论塔板数为100块、操作压力2.0 MPa、液态空速1.40 h-1、回流比15的条件下,催化精馏塔顶丙烯纯度为99.1%(x),丙烯收率可达93.8%。Aspen Plus流程模拟软件对催化精馏塔的模拟结果与试验结果基本吻合;对催化精馏塔优化的结果为:理论塔板数为120块、操作压力2.0 MPa、液态空速1.40 h-1、回流比17,在此条件下,催化精馏塔顶丙烯纯度可达99.6%(x),可满足聚合级丙烯的要求。
C3 catalytic distillation coupling process was investigated in a φ300 mm catalytic distillation tower in Sinopec Beijing Yanshan Company. The influences of pressure, C3 liquid space velocity and reflux ratio on the catalytic hydrogenation was studied. The experimental results showed that under the operating conditions of theoretical plate number 100, operating pressure 2.0 MPa, C3 liquid space velocity 1.40 h^-1 and reflux ratio 15, the overhead propylene purity and the propylene yield could reach 99. 1%（x） and 93.8%, respectively. The catalytic distillation tower was simulated using Aspen Plus software and the simulation results agreed well with the experimental data. Under the optimized operating conditions of theoretical plate number 120, operating pressure 2.0 MPa, C3 liquid space velocity 1.40 h^-1 and reflux ratio 17, the overhead propylene purity could reach 99.6%（x） which could meet the requirements of polymer-grade propylene.
出处
《石油化工》
CAS
CSCD
北大核心
2014年第7期821-826,共6页
Petrochemical Technology
关键词
催化-精馏耦合工艺
碳三馏分
丙炔
丙二烯
催化精馏塔
catalytic distillation coupling process
C3 fraction
methylacetylene
propadiene
catalytic distillation tower
