Continuous Operation of Spray-Dried Zinc Based Sorbent in a Hot Gas Desulfurization Process Consisting of a Transport Desulfurizer and a Fluidized Regenerator.

[摘要] We see the sorbent reaction performance in a HGD process consisting of a transport desulfurizer and a fluidized regenerator in this study. We have obtained the solid hold-up and solid circulation rate necessary to reach the target desulfurization efficiency. A major obstacle for fluidized- or transport bed sorbent developments is sorbent durability withstanding attrition. Continuous operation only makes similar conditions of real processes such as rapid temperature swing, chemical transformations between sulfidation and regeneration, stresses induced by fluidization and continuous particle circulation between two reactors. Therefore, an integrated system of transport desulfurizer and bubbling regenerator is operated continuously more than 150 hours to see system reliability, sorbent reaction characteristics, sorbent morphology before and after test.

[发布机构] Technical Information Center Oak Ridge Tennessee

[学科分类] 工程和技术（综合）

[关键词] Sorbents;Zinc compounds;Fluidized bed combustors;Hot gas cleanup;Desulfurization