CO2 Conversion into Formates/Carbamates in an Electrolyte System

Author(s)

Silva, Maria C. M. ; Reis, Alessandra de C. ; Bresciani, Antonio E. ; Ferreira, Newton L. ; Alves, Rita M. de B. ; Pierucci, S ; Manenti, F ; Bozzano, GL ; Manca, D

• Document type: Journal article
• Source: 30TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PTS A-C; v. 48, p. 6-pg., 2020-01-01.

Abstract

This paper explores the production of two intermediate chemicals with wide uses in industrial scale. The CO2 hydrogenation using ammonia as an alkyl base produces ammonium formate and carbamate suitable for formic acid and urea synthesis. For this, an investigative simulation study was carried out to explore the possible operating conditions for each product. The given results pointed out that 50 degrees C and 1 bar favour the production of carbamate, obtaining 99% of yield and decrease formate one to less than 1%. However, low temperature (10 degrees C) and high pressure (50 bar) promote the formate yield to 81% and smaller quantities of carbamate, around 8%. CO2 conversion is around 99% at 50 degrees C and 1 bar, when H2O/NH3 ratio is 2. (AU)

• FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program