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建立了富氧克劳斯工艺的计算模型,通过模型的运行结果研究了其工艺特点,获得了过程气量、转化率、还原气浓度等与富氧程度的关系,以及在富氧条件下直流法的H_2S浓度下限。在此基础上探讨了使用富氧克劳斯工艺解决川东天然气净化总厂一些克劳斯装置面临问题的可能性。     

CLAUSPOL硫磺回收尾气处理工艺及在我国的应用

主要介绍了由法国ＩＦＰ开发的ＣＬＡＵＳＰＯＬ硫磺回收尾气处理工艺，包括它的特点、原理和作用；在中国建设的第一套“ＣＬＡＵＳＰＯＬ”工艺装置在大连西太平洋炼油股份有限公司开工期间测试考核的数据；预测了这种工艺在中国进一步发展的前景     

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由加拿大Delta公司引进的MCRC硫磺回收装置,硫收率高,工艺技术先进。本文根据工艺过程的特点,对该装置的主要控制系统进行了评价和剖析。     

硫磺回收过程气换热器壳程结构探讨

本文结合克劳斯硫磺回收工艺过程，对过程气换热器壳程结构上采取的特殊作法进行了讨论。认为“11”形膨胀节、切口垂直布置的双弓形大间距折流板等结构，可较好地满足其使用要求。     

超级克劳斯(SuperClaus)工艺的工程实践及初步剖析

四川忠县天然气净化厂硫磺回收装置设计采用荷兰JE公司许可的四级转化超级克劳斯（Super Claus）工艺。通过对引进技术的整理，经过充分消化吸收引进装置的通用先进技术及重点专利技术，结合国内硫磺回收装置的设计经验，对引进工艺的技术进行初步剖析，揭示常规克劳斯工艺的局限性和超级克劳斯工艺的改良性以及超级克劳斯工艺在工业实践中突显的优点。说明实现超级克劳斯工艺国产化的可能性。     

Enhanced separation of Toluene and Xylene through surface modified porous carbon matrix

Aromatics that are present in the feed of the Claus sulfur recovery process are well known to poison the catalyst and hence continued efforts are being made within the scientific community to remove them. In this context, the present work attempts to develop superior adsorbents in comparison with contemporary adsorbents for removal of toluene and m-xylene. In a bid to improve adsorption properties, nitrogen-containing surface functional groups were successfully introduced onto porous carbon by minimizing pore damage while maximizing nitrogen content. The surface modified adsorbents were subjected to gas phase adsorption of toluene and m-xylene at 45°C to generate the adsorption isotherms. Toluene adsorption capacity for the modified adsorbent was observed to have increased by approximately 30% at pressure of about 20 mbar and m-xylene by about 10% at about 22 mbar. Several orders of magnitude increase in adsorption capacity was observed for both aromatics at pressures less than 10 mbar. Such high adsorption capacity have not been reported in literature and could potentially favorably alter the economics of aromatics removal in gas processing. Regenerability of nitrogen doped adsorbent was ensured through cyclic adsorption/desorption tests. The adsorption isotherms as well as the kinetics of adsorption were modelled.     

Development and reactivity tests of Ce-Zr-based Claus catalysts for coal gas cleanup

Claus reaction (2H₂S + SO₂ ↔ 3/nS_n + 2H₂O) was used to clean the gasified coal gas and the reactivity of several metal oxide-based catalysts on Claus reaction was investigated at various operating conditions. In order to convert H₂S contained in the gasified coal gas to elemental sulfur during Claus reaction, the catalysts having the high activity under the highly reducing condition with the moisture should be developed. CeO₂, ZrO₂, and Ce_1−xZr_xO₂ catalysts were prepared for Claus reaction and their reactivity changes due to the existence of the reducing gases and H₂O in the fuel gas was investigated in this study. The Ce-based catalysts shows that their activity was deteriorated by the reduction of the catalyst due to the reducing gases at higher than 220 °C. Meanwhile, the effect of the reducing gases on the catalytic activity was not considerable at low temperature. The activities of all three catalysts were degraded on the condition that the moisture existed in the test gas. Specifically, the Ce-based catalysts were remarkably deactivated by their sulfation. The Ce-Zr-based catalyst had a high catalytic activity when the reducing gases and the moisture co-existed in the simulated fuel gas. The deactivation of the Ce-Zr-based catalyst was not observed in this study. The lattice oxygen of the Ce-based catalyst was used for the oxidation of H₂S and the lattice oxygen vacancy on the catalyst was contributed to the reduction of SO₂. ZrO₂ added to the Ce-Zr-based catalyst improved the redox properties of the catalyst in Claus reaction by increasing the mobility of the lattice oxygen of CeO₂.     

克劳斯硫回收工艺中的富氧技术

分析了富氧技术在克劳斯硫回收装置中利用的工艺限制因素，介绍了Cope、Oxyclaus、Sure、No TICE和P－Combustion等富氧技术的优、缺点及其在克劳斯装置中的工业应用，指出P－Combustion技术是一种比较有效、廉价、能提高硫回收装置能力的好方法，同时分析了装置供氧的经济性。     

Hydrogen sulphide oxidation over teflon treated activated alumina and titanium dioxide catalysts

Commercial activated alumina and titanium dioxide catalysts were treated with Teflon to reduce the negative effects of water vapour on the oxidation of hydrogen sulphide by sulphur dioxide (Claus Reaction) near the sulphur dew point. The tests were conducted at 200°C and 130°C (108 kPa), with and without 30% water vapour in the feed gas. An alumina/Teflon composite catalyst was found to be superior to both untreated commercial catalysts at 130°C. This improvement was probably due to an increase in macroporosity rather than to a wetproofing effect. At 200°C, the performance of the composite was similar to that of the untreated titanium dioxide which in turn was superior to the untreated activated alumina.     

克劳斯催化过程的实际情况

结合现场操作情况,考查了在克劳斯催化剂上H2S／SO2转化反应的基本化学原理。结果表明,在缺氧条件下硫酸盐在催化剂表面的形成是克劳斯催化过程中的一种基本情况,也是降低CS2转化率和导致催化剂因BTX降解而结垢的原因。结合催化剂表面天然硫酸盐的生成,对更换催化剂和高比值浸润问题进行论述。最后考查了亚露点操作的催化剂设计问题。