Optimal Design and Decision for Combined Steam Reforming Process with Dry Methane Reforming to Reuse CO₂ as a Raw Material

Abstract

Carbon dioxide (CO 2 ) conversion technology has been estimated as a potentially practical solution for global warming problems although it still has some weaknesses such as cost and energy consumption. In this study, a combined steam reforming process with dry methane reforming process for the CO 2 treatment was investigated. Because the dry methane reforming process could generate synthesis gas from carbon dioxide, it could decrease the CO 2 emissions from the existing steam reforming process. Models for the steam reforming process and the combined process were developed and extended mitigation cost was suggested to evaluate CO 2 reduction of the overall process. The combined process could reduce net CO 2 emission by 67% compared with the reference steam reforming process, and the extended mitigation cost of the combined process ranged from 21 to 26.5 (US$/CO 2 ton) according to the change of the cost for CO 2 transportation.

Pyrolysis-catalytic dry (CO 2 ) reforming of waste plastics for syngas production: Influence of process parameters

“…In addition, it has been reported that the dry reforming reaction is favourable at high temperature [21][22][23].…”

Syngas production by $$\hbox {CO}_{2}$$ CO 2 reforming of methane on $$\hbox {LaNi}_{\mathrm{x}}\hbox {Al}_{1-\mathrm{x}}\hbox {O}_{3}$$ LaNi x Al 1 - x O 3 perovskite catalysts: influence of method of preparation

“…Climate change due to increasing concentrations of global warming gases, particularly CO 2 and CH 4 in the atmosphere is a great concern globally. 1,2 Most of the CO 2 released into the atmosphere is due to burning of fossil fuels like coal, natural gas and oil. The amount of carbon dioxide reaching the atmosphere can be minimized by different techniques such as; CO 2 capture, transportation and sequestration.…”

Steam and Dry Reforming Processes Coupled with Partial Oxidation of Methane for CO2 Emission Reduction

“…In the process, hydrogen was produced as the salable product and is worth 1.5–1.8 $ kWh −1 26. The separation cost was estimated to be 56 $ $ t_{{{\rm{H}}_2}}^{ - 1} $ 4. The compression cost for captured CO 2 is the sum of the electricity and cooling water costs which was estimated to be 10.5 $ t −1 of compressed CO 2 27, 28.…”

“…Syngas is an intermediate used to generate various products such as methanol, dimethyl ether (DME), and long‐chain, i.e., C10–C16 alcohols 3. The main reaction that produces syngas is the steam methane reforming (SMR) process 4, 5, which requires much energy to produce an ideal H 2 /CO ratio (H 2 :CO = 1.0–2.0). For every kg H 2 production, ∼ 134 MJ energy is consumed.…”