Preparation of high temperature gas desulfurizer

Abstract

The invention discloses a method for preparing a high-temperature coal gas desulfurizer, which belongs to the field of preparation of desulfurizer. The method comprises the following steps that: four pore-forming agents with different pore-forming characteristics are prepared, mixed with red mud and burnt earth, ball ground to be below 200 meshes, kneaded by adding water, subjected to extruded molding, and then dried and roasted at high temperature. The specific surface area of the prepared desulfurizer is between 8 and 10m / g, the pore volume is between 0.3 and 0.5cm / g, and pores with dimensions more than 120nm account for 50 percent in the pore distribution. The desulfurizer consists of 80 to 90 weight percent of red mud, 5 to 15 weight percent of adhesive, and 5 to 10 weight percent of pore-forming agent. The desulfurizer prepared by the method has the characteristics of low cost, high sulfur capacity and good stability. The method can be used in the field of high-temperature coal gas purification-key technology of integrated gasification combined cycle power generation and fuel-cell power generation technologies, and the field of desulfurization purification of chemical raw material gas prepared by taking coal, petroleum and natural gas as raw materials.

Description

Technical field

[0001] The invention relates to a method for preparing a high-temperature gas desulfurizer, which belongs to the field of desulfurizer preparation, and specifically relates to a high-temperature gas purifier in integrated coal gasification combined cycle power generation and fuel cell power generation technology, and a preparation method using coal, petroleum, and natural gas as raw materials Preparation method of desulfurization purifier for chemical raw material gas. Background technique

[0002] Fuel cell power generation (FC) and gas and steam combined cycle power generation (IGCC) technologies are the best way to clean and efficiently use coal today. However, coal will produce a large amount of sulfide during gasification, of which more than 90% are hydrogen sulfide. These sulfur-containing components will not only severely corrode equipment at high temperatures, but also cause serious environmental pollution when discharged into the atmosphere. Therefore, hi...