Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9759296 | International Journal of Hydrogen Energy | 2005 | 16 Pages |
Abstract
This two-part paper investigates performances, costs and prospects of using commercially ready technology to convert coal to H2 and electricity, with CO2 capture and storage. Part A focuses on plant configuration, performance, and CO2 emissions. Part B focuses on the cost of producing H2 and electricity, with and without reduced CO2 emissions. Our estimates show that the costs for ⼠91% decarbonized energy (via quench gasification at 70 bar) are about 6.2¢/kWh for electricity and about $ 1.0/kg (8.5 $/GJ, LHV) for hydrogen; these are, respectively, 35% and 19% higher than the corresponding energy costs with CO2 venting. Referenced to these analogous CO2 venting plants, the costs of CO2 emissions avoided are ⼠24 $/tonne for electricity and 11 $/tonne for H2.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Thomas Kreutz, Robert Williams, Stefano Consonni, Paolo Chiesa,