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Authors = Krishna D. P. Nigam

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15 pages, 1680 KiB  
Article
Plant-Wide Modeling and Economic Analysis of Monoethylene Glycol Production
by Md Emdadul Haque, Namit Tripathi, Srinivas Palanki, Qiang Xu and Krishna D. P. Nigam
Processes 2022, 10(9), 1755; https://doi.org/10.3390/pr10091755 - 2 Sep 2022
Cited by 5 | Viewed by 10752
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Chemical Process Modelling and Simulation)
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