Plant-Wide Modeling and Economic Analysis of Monoethylene Glycol Production

被引：4

作者：

Haque, Md Emdadul ^{[1
]}

Tripathi, Namit ^{[2
]}

Palanki, Srinivas ^{[1
]}

Xu, Qiang ^{[3
]}

Nigam, Krishna D. P. ^{[4
]}

机构：

[1] West Virginia Univ, Dept Chem & Biomed Engn, Morgantown, WV 26506 USA

[2] Linde Inc, 1585 Sawdust Rd, The Woodlands, TX 77380 USA

[3] Lamar Univ, Smith F Dept Chem Engn, Beaumont, TX 77710 USA

[4] Indian Inst Technol, New Delhi 110016, India

来源：

PROCESSES | 2022年 / 10卷 / 09期

关键词：

process modeling; process integration; heat integration; economic analysis; ethylene glycol; ETHYLENE-OXIDE; SELECTIVE OXIDATION; ETHENE; DESIGN;

D O I：

10.3390/pr10091755

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Monoethylene glycol (MEG) is used to produce polyester fibers and polyethylene terephthalate resins. It is also utilized in antifreeze, pharmaceuticals, and cosmetics applications. In this research, we consider the development of a novel process plant that produces MEG from ethylene. The proposed ethylene-to-ethylene oxide (EO) plant is integrated with an EO-to-MEG plant to reduce utility costs and recover high-value products. Energy-saving opportunities are analyzed via heat integration tools. Furthermore, a multitube glycol reactor is used in conjunction with a novel MTO catalyst in the ethylene-to-EO reactor. Our results demonstrate that the integrated EO/EG plant produces ethylene glycols with that same purity and product recovery as conventional designs. A comparative economic assessment based on a 200,000 t/y plant indicates that process integration techniques can reduce costs significantly.

引用

页数：15

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