MEMBRANE VAPOR SEPARATION - RECOVERY OF VINYL-CHLORIDE MONOMER FROM PVC REACTOR VENTS

被引：24

作者：

LAHIERE, RJ

HELLUMS, MW

WIJMANS, JG

KASCHEMEKAT, J

机构：

[1] VISTA CHEM CO,AUSTIN,TX 78726

[2] MEMBRANE TECHNOL & RES INC,MENLO PK,CA 94025

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1993年 / 32卷 / 10期

关键词：

Chemical reactors - Computer simulation - Gas permeable membranes - Industrial economics - Monomers - Polyvinyl chlorides - Recovery - Recycling - Vapors - Vents;

D O I：

10.1021/ie00022a006

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Membrane vapor separation technology was employed in a PVC (poly(vinyl chloride)) plant to separate vinyl chloride monomer (VCM) from inert gases in a reactor vent stream. The purpose of the membrane separation process was to recover VCM that would normally be incinerated in the vent stream so that the VCM could be recycled and reused in the PVC reaction. In this paper we report on the operation of one of the first membrane vapor separation systems in the chemical industry. Pilot and laboratory studies demonstrated that the membrane system recovered 63-96 vol% of VCM from a vapor that is routinely incinerated. Computer simulations based on the experimental data showed that VCM recoveries greater than 99% can be achieved by increasing the membrane area. Benefits for using membrane technology include recovered VCM cost savings, lower acid neutralization expenditures, and reduced incinerator maintenance.

引用

页码：2236 / 2241

页数：6