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Patent Details

Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bengaluru 
Catalyst, Its Process of Preparation, and Applications towards Carbon Dioxide to Chemicals  
Sebastian Chirambatte Peter, Soumyabrata Roy, Arjun C.H, Manoj Kaja Sai 
Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bengaluru 
Application type:
Applied - 2018-11-29 
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Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) Bengaluru 
This invention relates to the overall technology, process conditions, catalyst composition & synthesis, and reactor design for integrated conversion of CO2 from industrial flue stream to value added products like methanol (MeOH) and carbon monoxide (CO, which can be used as syngas or recycled back to the reactor with or without combustion) to mitigate CO2 emissions and global warming. The overall process is divided into the following steps: (a) CO2 capture from natural/coal gas flue stream devoid of SOx and NOx with dry weight purity of close to 99.8% and CO2 recovery of 90.2%, (b) hydrogen production from electrolysis of alkaline water using energy from both photovoltaic module and grid electricity (whenever required) to decrease carbon footprint, (c) Compression of the mixed H2 and CO2 gases in predetermined ratios, (d) thermochemical conversion of the CO2 and H2 to MeOH and CO on a specific transition metal oxide based catalyst bed in a designed downflow vapor phase reactor under specific process conditions, (e) product separation and purification (both liquid and gas) by use of cryogenic and pressure swing adsorption techniques with an optional recycling facility of the unreacted gases with or without conversion. The process (d) involves the secondary steps of (d1) the catalysts composition determination and synthetic process and the (d2) design of the down flow vapor phase reactor. 

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