共查询到18条相似文献,搜索用时 779 毫秒
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煤气化—蒸汽联合循环发电(IGCC)技术中的高温煤气热脱硫 总被引:1,自引:1,他引:0
本文论述了开发煤气化-蒸汽联合循环发电(IGCC)技术的重要意义。着重分析了国外高温煤气热脱硫方面的研究状况,并结合国内实际情况,指出了我国在开发高温煤气热脱硫技术研究时,应从脱硫剂物系选择、温区划定、反应器选型和实施步骤等方面采取的一系列系统优化政策。 相似文献
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高温煤气铁系脱硫剂的研究 总被引:6,自引:5,他引:6
高温煤气脱硫净化是目前先进洁净煤利用技术之一 ,但是以前高温煤气脱硫剂在多次硫化再生循环过程中出现粉化 ,妨碍脱硫剂进一步使用 .本研究选择钢厂赤泥作为脱硫剂原料 ,添加不同活性组分和防粉化结构助剂 ,制备了氧化铁基高温煤气脱硫剂 .经过 1 0次硫化 /再生循环实验 .结果表明 :1 0次循环累计 1 96.98% ,再生后脱硫活性不发生变化 ,具有较高和较稳定的脱硫活性 .再生后脱硫剂的机械强度高于新鲜样品 ,在使用过程中没有出现粉化现象 ,这为氧化铁基高温煤气脱硫剂的工业化研究提供了可靠的依据 . 相似文献
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本文针对固相反应组份不均匀性影响高温煤气脱硫剂性能和商业成本的缺陷,研究在反应物以液相混合,用沉淀法制备Zn-Ti高温煤气脱硫剂,克服了上述缺点,使脱硫活性提高。 相似文献
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The coal poly-generation system for the production of alcohol and ether fuels as well as power is one of advanced coal utilization techniques. The team leaded by Professor Xie Kechang is carrying out the research on the poly-generation system to produce the syngas from the combination of gasified and pyrolyzed coal gas (dual gas resources) for the alcohol ether synthesis. Gas desulfurization is one of the key technologies for this system. The desulfurization matching with dual gas resources based poly-generation system for the production of alcohol and ether fuels as well as power is presented according to gas components, sulfur content, sulfur species and desulfurization accuracy in this technology. This matching desulfurization is classified into hot gas desulfurization, normal gas desulfurization, warm gas desulfurization and organic sulfur catalytic conversion. The preparation of H2S removal sorbents, organic sulfur hydrolysis catalyst and the evaluation of their activities involved in the system were investigated. The H2S removal efficiencies of the crude and fine desulfurization sorbents prepared for hot gas desulfurization are 90% and 99% at 500 °C in simulating coal gas, and their sulfur capacities are 21.85 wt.% and 24.91 wt.%, respectively. The organic sulfur catalyst shows the high hydrolysis activity, and the hydrolysis conversion of COS is more than that of CS2 on the same catalyst. The research will provide necessary information for the matching desulfurization technology in the demonstration project on dual gas resources coal poly-generation system. 相似文献
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Jieun Lee Suk-Hwan Kang Hyo-Sik Kim Dong-Hwan Jeon Seung-Jong Lee Seok-Woo Chung Jin Wook Lee Yongseung Yun Ho-Jung Ryu Jeom-In Baek 《Korean Journal of Chemical Engineering》2016,33(9):2610-2621
Experimental research on coal gasification with a filtration and desulfurization system for the development of an integrated gasification combined cycle (IGCC) was performed with Indonesian LG, KPU and Canadian Arch coals. A dry-feeding entrained-bed type gasifier was operated below the fusion temperature of the coal and at 20 bar of pressure. The filtration system was designed for continuous capture and subsequent removal of the fly ash and the unreacted coal residue via a specialty metal filter. The hot fuel gas desulfurization unit (HGD) consisted of a transport desulfurizer, a bubbling regenerator and a multi-cyclone. The research objective was to investigate the feasibility of applying a partial slagging coal gasifier to attain high carbon conversion and cold gas efficiencies as well as to attain an operational capability for combining with filtration and HGD. A Pilot-scale test demonstrated that the coal fines were effectively removed and the overall sulfur removal efficiency of the hot fuel gas desulfurization unit was higher than 95.3%. 相似文献
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烟气同步脱硫脱硝研究进展 总被引:2,自引:0,他引:2
燃煤烟气中的SO2和NOX是大气污染的主要污染物质,目前烟气同步脱硫脱硝技术是研究的热点,本文综述了目前国内外开发的干法、湿法、生物法同步脱硫脱销技术的原理、特点以及最新研究进展,最后对同步脱硫脱销技术发展前景做了展望。 相似文献
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整体煤气化联合循环(IGCC)中高温煤气脱硫技术进展 总被引:4,自引:0,他引:4
在论述整体煤气化联合循环(IGCC)技术的基础上,分析了国外高温煤气脱硫的研究现状和发展趋势,提出了适合中国国情的高温煤气热脱硫技术的研究方向。 相似文献
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Suk-Hwan Kang Seong-Jong Lee Woo-Hyun Jung Seok-Woo Chung Yongseung Yun Sung-Ho Jo Young Cheol Park Jeom-In Baek 《Korean Journal of Chemical Engineering》2013,30(1):67-72
A coal gasification pilot plant operation with hot fuel gas desulfurization (HGD) was performed taking two coals (Indonesian ABK and MSJ) that differ in their carbon and sulfur contents. A dry-feeding entrained-bed type gasifier was used for gasification with oxygen and capable of operating at 30 bar pressure and 1,550 °C. The HGD unit consisted of a transport desulfurizer, a bubbling regenerator and a multi-cyclone. Attention was focused on attaining high carbon conversion and cold gas efficiency in the entrained bed reactor and the sulfur removal efficiency of the hot fuel gas desulfurization unit. The optimum conditions for achieving high performance of the operation are reported. 相似文献