共查询到20条相似文献,搜索用时 234 毫秒
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常温精脱硫技术是80年代末期开发成功的[1]。齐鲁二化年产10万t甲醇装置的合成气经Amisol法净化后总硫达不到精度,于1990年5月引进了英国ICI公司的“PURASPEC”工艺,采用P2312COS水解催化剂串P2020常温ZnO精脱硫技术。国内也开发了类似“PURASPEC”的825型COS水解催化剂串KT310常温ZnO精脱硫技术。该技术同传统的钴钼加氢串ZnO高温精脱硫工艺相比,降低了能耗,克服了高温工艺在某些工况下的“冷热病”和脱硫效率受温度影响的不足,但由于常温ZnO有价格贵(2… 相似文献
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精脱硫触媒SH—T514B和MG-901、HTZ-4在我厂的应用情况,并对两种触媒的性能、脱硫效果、优缺点进行分析比较,对同类生产厂家选择精脱硫剂具有一定的参考价值。 相似文献
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本文报道了焦炉气常温精脱硫新工艺的研究结果,对工程设计提供了重要依据,该新工艺系可采用T504、T102、EZX等精脱硫催化剂。 相似文献
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介绍了甲醇生产中焦炉煤气精脱硫系统积碳与结焦的危害以及应对方法。通过设备改造及工艺调整等措施,减少各种杂质进入精脱硫系统,使加氢催化剂保持良好效果,实现设备长周期运行。 相似文献
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The simultaneous absorption of two gases accompanied by chemical reaction into a slurry of fine suspended particles was numerically analysed using the model obtained with some extension of the corresponding single gas absorption.Experiments were performed for the simultaneous absorption of sulfur dioxide and carbon dioxide with a plane gas—liquid type stirred tank absorber. The experimental results were satisfactorily elucidated by the proposed model and it is suggested that when accompanied by sulfur dioxide absorption, carbon dioxide may almost be regarded as an inert gas. 相似文献
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活性焦联合脱硫脱硝技术及其在我国的适用性分析 总被引:2,自引:0,他引:2
介绍了国内外脱硫脱硝工艺技术的发展情况;重点分析了活性焦联合脱硫脱硝技术的机理、工艺特点及应用状况;该技术可以在合适的温度区间有效地脱除烟气中的SO_2和NO_x,简化了烟气净化工艺,脱除过程基本不耗水、不产生二次污染,还实现了对硫的资源化利用,是适合我国国情的烟气脱硫脱硝技术。 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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研究了一种新型的半干法脱硫开孔导流管喷动床。在相同静床层高度下,研究了其最小喷动速度、最大喷动压降、喷动高度;在相同钙硫摩尔比、入口SO2质量浓度、进气温度、绝热饱和温差条件下,以消石灰为脱硫剂,研究了其脱硫性能。实验结果表明,与传统柱锥型喷动床相比,开孔导流管喷动床具有更好的流体力学性能和脱硫效率。实验条件下最适宜的操作条件为:钙硫摩尔比为0.9—2.5,进气温度为120—130℃,绝热饱和温差为10℃。 相似文献
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新型催化法脱硫技术在硫酸尾气处理工程上的应用 总被引:1,自引:0,他引:1
分析目前硫酸尾气治理现状及常用技术存在的问题,介绍一种新型催化脱硫技术处理硫酸尾气并回收硫资源的基本原理、工艺流程和工程实例。与传统的氨-酸法、活性焦法、石灰石-石膏法对比,新型催化法技术采用低温非钒系催化剂可有效脱除硫酸尾气中的SO2,保证ρ(SO2)<50 mg/m3,达到新标准所规定的限值。该方法处理硫酸尾气具有广阔的应用前景。 相似文献