Reaction of Calcium-Based Sorbents with Sulfur Compounds during Gasification. Second Annual Report October 1987-September 1988

摘要

The report outlines the objective and the data obtained under the project related to efficient utilization of high-sulfur Illinois coal in a One-Step Coal Gasification/Desulfurization Process by employing in-situ removal of sulfur using calcium-based sorbents. The research was supported jointly by the Gas Research Institute and the State of Illinois Center for Research on Sulfur in Coal. The scope of the research included a study of the reaction of calcium-based sorbent with sulfur present in the coal at gasification conditions. Low pressure tests were conducted in an ambient-pressure quartz electrobalance and high pressure tests were conducted in a high-pressure/high-temperature thermobalance reactor. The test parameters included temperature, pressure, H2S concentration, and sorbent particle size. The sulfidation reaction tests at elevated pressure were conducted with both fully calcined and half-calcined sorbents.