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Title: Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock

Abstract

A method for co-production of high purity dimethyl carbonate and mono-ethylene glycol by applying a reactor, such as a membrane reactor and/or an adsorbent-catalytic reactor by capturing and reacting carbon dioxide with methanol and ethylene oxide. Carbon dioxide may be recovered from primary sources (utilities and industrial processes) by a membrane or solid adsorbent, and subsequently converted to an intermediate hydroxy-ethyl-methyl carbonate by reacting with ethylene oxide and methanol. For high-purity carbon dioxide (obtained by carbon capture technologies or from an ethanol fermentation process), the membrane reactor is replaced with a catalytic reactor for direct conversion of carbon dioxide to hydroxy-ethyl-methyl carbonate by reacting with ethylene oxide and methanol. The hydro-ethyl-methyl carbonate is further reacted with methanol for conversion to dimethyl carbonate. A combination of heterogeneous and homogeneous catalysts is implemented for an effective conversion of carbon dioxide. An integrated reactive distillation process using side reactors is used for facilitating catalytic reaction for production of high purity dimethyl carbonate.

Inventors:
;
Publication Date:
Research Org.:
E3Tec Service, LLC, Hoffman Estates, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1805598
Patent Number(s):
10,941,105
Application Number:
15/929,808
Assignee:
E3Tec Service, LLC (Hoffman Estates, IL)
DOE Contract Number:  
SC0013233
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/22/2020
Country of Publication:
United States
Language:
English

Citation Formats

Panchal, Chandrakant B., and Doctor, Richard D. Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock. United States: N. p., 2021. Web.
Panchal, Chandrakant B., & Doctor, Richard D. Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock. United States.
Panchal, Chandrakant B., and Doctor, Richard D. 2021. "Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock". United States. https://www.osti.gov/servlets/purl/1805598.
@article{osti_1805598,
title = {Method for direct conversion of carbon dioxide to dialkyl carbonates using ethylene oxide as feedstock},
author = {Panchal, Chandrakant B. and Doctor, Richard D.},
abstractNote = {A method for co-production of high purity dimethyl carbonate and mono-ethylene glycol by applying a reactor, such as a membrane reactor and/or an adsorbent-catalytic reactor by capturing and reacting carbon dioxide with methanol and ethylene oxide. Carbon dioxide may be recovered from primary sources (utilities and industrial processes) by a membrane or solid adsorbent, and subsequently converted to an intermediate hydroxy-ethyl-methyl carbonate by reacting with ethylene oxide and methanol. For high-purity carbon dioxide (obtained by carbon capture technologies or from an ethanol fermentation process), the membrane reactor is replaced with a catalytic reactor for direct conversion of carbon dioxide to hydroxy-ethyl-methyl carbonate by reacting with ethylene oxide and methanol. The hydro-ethyl-methyl carbonate is further reacted with methanol for conversion to dimethyl carbonate. A combination of heterogeneous and homogeneous catalysts is implemented for an effective conversion of carbon dioxide. An integrated reactive distillation process using side reactors is used for facilitating catalytic reaction for production of high purity dimethyl carbonate.},
doi = {},
url = {https://www.osti.gov/biblio/1805598}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {3}
}