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Comparison of Solvent Development Options for Capture of CO2 from Flue Gases
Raksajati A.a, Ho M.T.b, Wiley D.E.b
a Department of Chemical Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b University of Sydney, School of Chemical and Biomolecular Engineering, Sydney, 2006, Australia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018 American Chemical Society.Chemical absorption is widely regarded as the most commercially ready technology for postcombustion CO2 capture from large industrial emission sources. The benchmark solvent is monoethanolamine (MEA). Alternate solvents to MEA have been developed with improved properties such as solvent loading, regeneration energy, and absorption rate. Improvements in solvent properties can be challenging because of possible adverse interactions between solvent properties. Ideally improving all solvent properties and process designs concurrently is desirable to reduce the total cost of CO2 capture. The changes in cost of CO2 capture for postcombustion CO2 capture from a black-coal power plant using absorption are investigated using Monte Carlo simulations, where key solvent parameters are varied simultaneously. Different classes of solvents are considered covering aqueous and phase-change solvents in conventional and encapsulated solvent systems. The results show that it is not necessary for new solvents to have superior values for all properties. There are combinations of solvent properties where low total capture cost can be achieved because improvements in the more significant parameters offset smaller or negative improvement in other parameters. In particular, low total capture cost can be achieved when solvents have the following properties: good stability toward SOx and NOx, a low heat of reaction, a high absorption rate, a low water vaporization rate, and a low price per unit of the solvent. The results also show that regardless of the solvent type, different solvent systems can potentially achieve almost the same lowest capture cost of approximately U.S. $37-39 per tonne of CO2 avoided.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Absorption rates,Chemical absorption,Different solvents,Heat of reaction,Monoethanolamine,Regeneration energy,Solvent parameter,Solvent properties[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1021/acs.iecr.8b00283[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]