Catalytic Performance of Coal Char for the Methane Reforming Process

Abstract

A new concept of combined coal gasification and methane reforming in a single reactor was proposed as an alternative path for syngas production using coal and coalbed methane. Here, the results of this process are summarized. The experimental work was carried out in a fixed-bed reactor. Methane cracking, CO 2 /steam reforming of methane over coal char, and the effects of chars made from different types of parent coal on methane conversion were examined. The catalytic effect of coal char on methane cracking and reforming increased with decreasing coalification degree. A synergistic effect was observed in that, while the coal char catalyzed the methane reforming reactions, gasification of the coal char took place simultaneously, which counter-balanced the deposition of carbon especially for the methane-steam-char system.

Activated Carbon (AC) Supported Nickel-Nanoparticles Prepared By Solid-Phase Method For Dry Reforming of Methane--Effect of Different Activated Carbons (ACs)

“…However, metalbased catalysts possessed a series of limitations, such as limited availability, low cost-e ciency of noble metals, and rapid deactivation of transition metals caused by severe coke deposition. Thus, the use of carbon-based catalysts for DRM is a promising method, which is also advantageous for industrial processes (Li et al, 2016;He et al, 2015;Xu et al, 2014). Carbon-based catalysts are classi ed into two categories: one is carbonaceous materials are directly served as the catalysts in the reforming process, and the other is metallic components are supported over the carbonaceous materials.…”

“…The most common carbonaceous materials for the synthesis of carbon-based catalysts include activated carbon (AC), biomass-derived char, coal-derived char, metallurgical coke, and carbon nano bers (CNF) (Cao et al, 2018;Chinthaginjala et al, 2007;Fidalgo et al, 2010;He et al, 2015;Li et al, 2016;Xu et al, 2014). Due to high surface porosity, large surface area, and cost-e ciency, AC has been extensively studied.…”