Measurements of Sulfur Capacity Proportional to Zinc Sulfidation on Sorbent Containing Zinc Ferrite−Silica Composite Powder in Pressurized Coal Gas

摘要: Zinc ferrite−silica composite powder was subjected to a series of reduction and sulfidation tests performed at mainly 450 °C in simulated coal gas environment. In situ X-ray diffraction analyses revealed that ZnS FeS were produced H2S concentration 1 vol %, whereas only zinc sulfides detected 80 ppm. The scheme for essentially the same as pure ferrite 550 °C. desulfurization sorbent containing pressurized thermobalance determine sulfur capacities iron separately by applying high low concentrations sulfidation. This method applied analyze change zinc-related capacity samples experienced multiple cycles up 20 times. At end cycles, had fallen about 50% its initial value, due maintained 91% value. in...