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首页> 美国政府科技报告 >Integration and testing of hot desulfurization and entrained-flow gasification for power generation systems. Phase 2, Process optimization: Volume 3, Effect/fate of chlorides in the zinc titanate hot-gas desulfurization process
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Integration and testing of hot desulfurization and entrained-flow gasification for power generation systems. Phase 2, Process optimization: Volume 3, Effect/fate of chlorides in the zinc titanate hot-gas desulfurization process

机译：用于发电系统的热脱硫和夹带流气化的集成和测试。阶段2，工艺优化：第3卷，钛酸锌热气脱硫工艺中氯化物的影响/归趋

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The objective of this project was to support Texaco's effort to develop the zinc titanate hot-gas desulfurization process for gases produced from their oxygen-blown coal gasifier by answering two key questions that had remained unanswered to date. These questions were: Will chloride in the coal gas affect the performance of the sorbent. Where would the chloride end up following sulfidation and regeneration. Previously, Research Triangle Institute (RTI) completed a bench-scale test series, under a subcontract to Texaco, Inc., for their contract with the US Department of Energy/Morgantown Energy Technology Center (DOE/METC), in which zinc titanate was shown to be a highly promising sorbent for desulfurizing the Texaco O(sub 2)-blown simulated coal gas. The next step was to evaluate the effect of coal gas contaminants, particularly chloride, on the sorbent. No tests have been carried out in the past that evaluate the effect of chloride on zinc titanate. If ZnO in the sorbent reacts with the chloride, zinc chloride may form which may evaporate causing accelerated zinc loss. Zinc chloride may revert back to the oxide during oxidative regeneration. This may be enhanced in the presence of steam. This report provides results of a three-test series which was designed to give some definitive answers about the fate of chloride in the hot-gas desulfurization process and the effect of chloride on the performance of zinc titanate.

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