Characterization and performance of La Fe O /MCM-41 sorbents during hot coal gas desulfurization

Investigation of the crater-like microdefects induced by laser shock processing with aluminum foil as absorbent layer

“…Because the process of laser shock loading is ultra fast, we neglect the volume change during the loading period of the laser-induced shock wave. V m is taken as the molar volume under the atmospheric pressure, which is about 24.5 L/mol [30].…”

CeO 2 –MnO x /ZSM-5 sorbents for H 2 S removal at high temperature

“…In addition, the specific surface areas and pore volumes of unsupported sorbents are quite small and they are easy to be sintering during preparation and sulfidation processes. To overcome this drawback, many researches have been focused on supporting metal oxides onto high-surface-area mesopore silica materials [19,20]. ZSM-5 as a support or catalyst has been extensively used in the field of NO reduction [21], NO adsorption [22], and petrochemical industry [23,24] because of its high surface area and thermal stability.…”

The mechanism of coal gas desulfurization by iron oxide sorbents

“…The sorbents can be divided into noble metal sorbents (Ru and Rh) (Hulteberg et al, 2005) and base metal oxide sorbents (Mn, Cu, Fe, Zn) (Li and Flytzani-Stephanopoulos, 1997;Wan et al, 2011;Zhang et al, 2012;Zheng et al, 2012). Iron oxide is the most common material as a sorbent for hot gas desulfurization under a reducing atmosphere with hydrogen and carbon monoxide due to its high absorption capacity, abundant resources, lower price, excellent physical strength and easy regeneration (Wang et al, 2011;Fan et al, 2013a).…”

“…Consequently, the development of dry desulfurization at high temperature becomes vitally crucial in this field, and can improve the thermal efficiency and reduce cost of capital without the procedure of coal gas cooling and heating (Wan et al, 2011).…”