Carbon Capture and Storage: CO2 Management Technologies by Amitava Bandyopadhyay
By Amitava Bandyopadhyay
Carbon trap and garage (CCS) refers to a collection of applied sciences and strategies for the mitigation, remediation, and garage of business CO2 emissions, the main approaching and virile of the greenhouse gases (GHG). The booklet addresses the tools and applied sciences at the moment being utilized, constructed, and so much short of additional research.The publication: Discusses equipment of carbon catch in business settings PresentsRead more...
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The temperatures of gas and liquid were kept at 40°C and the pressure was maintained at 1 atm. The observed CO2 removal efficiencies were more than 90% with proper gas to liquid flow rate ratio. The concentration of NH3 should be higher than 5% (w/w) for achieving the similar level of removal efficiency in MEA process. The optimum regeneration Amine vs. 036 kg CO2/kg NH3, respectively. The rise in temperature due to the heat of absorption could be reduced, and the CO2 removal efficiency could be increased to maximum 8% with the cooling of NH3 solution by installing side stream and cooler.
The consumption of process energy was analyzed based on sensible heat, reaction energy, and energy for steam stripping. The sensible heat was the energy required to raise the temperature of the scrubbing liquid to the stripper temperature that would be lost. Reaction energy was the heat of reaction for absorption of CO2. Finally, the energy for steam stripping was the energy associated with the steam needed during the stripping operation. The estimated total energy requirement for the NH3-based process was 1,147 kJ/kg-CO2 that was only about 27% of the energy requirement of MEA-based process of 4,215 kJ/ kg-CO2.
It was shown that the simultaneous absorption of CO2 and SO2 was achievable without any impact on CO2 removal process by the SO2 removal because the removal efficiencies of CO2 and SO2 were maintained at a high level and the CO2 loading was increased in the blend of 30% AMP + 3% NH3 solution. In another investigation, Choi et al. 095 m, batch liquid volume: 500 ml, and stirring speed: 50 rpm). Results showed that the CO2 absorption rate was increased by 144% with increasing NH3 concentration and partial pressure.