Capturing and using CO2 as feedstock for clean chemical process technologies

Y. Demirel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chemical-looping technologies for capturing CO2 are discussed with critical assessments of the circulating fluidized bed systems and the packed bed reactor with periodic switching of the feed streams of fuel and air. Beside, some industrial chemical processes, we have developed, for converting CO2 into value added chemicals are discussed. The first process uses 137.31 tonne/day CO2 and hydrogen to produce 100.0 tonne/day of methanol. Electrolysis of water using the electricity from wind power supplies the hydrogen and helps store the electricity in the form of methanol. The second process is the production of propylene carbonate (200,226,816 lb/year) and polypropylene carbonate (200 million lb/year) from propylene oxide and CO 2 by using 9990.2 lb/hr and 12762.8 lb/hr CO2, respectively. Another process uses 1652.97 kg/hr of bioglycerol and 273.74 kg/hr of CO2 to produces 670.9 kg/hr bioglycerol carbonate by direct carboxylation. CO2 can also be converted to formic acid, methanol, and hydrogen by using zero-valent metal/metal oxide redox cycles under hydrothermal conditions. The oxidized metal can be regenerated by glycerin, which is converted to lactic acid. These case studies emphasize the sustainability and feasibility of chemical process technologies and positive impact of converting CO2 to useful chemicals on global warming.

Original languageEnglish (US)
Title of host publicationTechnical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014
PublisherNano Science and Technology Institute
Pages410-413
Number of pages4
ISBN (Print)9781482258301
Publication statusPublished - Jan 1 2014
EventNanotechnology 2014: Electronics, Manufacturing, Environment, Energy and Water - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014 - Washington, DC, United States
Duration: Jun 15 2014Jun 18 2014

Publication series

NameTechnical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014
Volume3

Conference

ConferenceNanotechnology 2014: Electronics, Manufacturing, Environment, Energy and Water - 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014
CountryUnited States
CityWashington, DC
Period6/15/146/18/14

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Keywords

  • Carbon capture
  • Glycerol carbonate production
  • Hydrothermal process
  • Methanol production
  • Propylene carbonate production

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Demirel, Y. (2014). Capturing and using CO2 as feedstock for clean chemical process technologies. In Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014 (pp. 410-413). (Technical Proceedings of the 2014 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2014; Vol. 3). Nano Science and Technology Institute.