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<正> 生产合成氨,无论采用什么工艺方法都伴随有工艺废气生成。由地工艺废气中含有可燃性气体和化工原料,以及污染物等,上述工艺废气若不回收利用,而直接排入大气,不但损失了大量能源,降低原材料利用率,而且还严重污染环境,也直接影响企业 相似文献
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分析干法腈纶丙烯腈废气的污染因子及治理难点,提出吸收与吸附相结合的废气治理技术.同时,对影响丙烯腈废气吸收的因素、工艺参数进行总结,对提高废气治理技术有一定的指导作用.实践运行表明:丙烯腈废气经治理后可以直接排放,AN去除率达98%以上. 相似文献
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利用工业锅炉的废气产生的热能,提高燃料(天然气)的使用效率。所推荐工艺的废热设备:
应用于工业炉——天然气耗量从0.2到2000m^3/a的火管式和水管式类型的废气利用装置已研制成功。在工业炉废气产生大量灰尘时废热设备配备了除尘装置。这样就借助压缩空气工艺吹洗废热装置工作表面上的沉积物。 相似文献
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煤燃烧释放出来的含SO2废气,一直是大气污染的主要根源之一,是造成酸雨的主要原因。主要简单介绍消除含SO2废气电厂锅炉烟气石灰石/石膏湿法脱硫工艺。 相似文献
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主要介绍喷漆作用,喷漆油漆主要成分,喷漆过程有机废气产生方式及处理措施,重点比较等离子法、吸收法、喷淋法、UV氧化法等治理方法的原理及利弊情况,从废气治理工艺净化效率、使用寿命、投资成本、运行维护费用和二次污染等方面考虑推荐采用UV光催氧化处理及典型工艺介绍,分析喷漆有机废气采用UV光催氧化处理工艺后尾气治理效率及达标情况说明。 相似文献
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In this paper, thermodynamic optimization is applied to analyze the crystallization process of the gas hydrate related to the gas hydrate cool storage system. Thermodynamic optimization model of the gas hydrate crystallization process is established. By taking the entropy generation minimization as the optimization objective, both the optimal control strategy and the optimal cooling rate of the gas hydrate crystallization process are determined. The minimum entropy generation corresponding to the optimal cooling rate decreases by 7.8% compared with normal situation. The results presented in this paper can provide important guidelines for optimal design and operation of the gas hydrate crystallization process. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
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The integration of the COREX process with the blast-furnace process, the installation of CO2 removal and gas-and-steam CHP plant displays many energy and ecological advantages. The application of COREX gas after the removal of CO2 as hot reducing gas leads first of all to a saving of coke. Besides the reduction of the consumption of coke, also the consumption of blast, high-purity oxygen, the amount and lower heating value (LHV) of blast-furnace gas are changed, as well as the production of electricity in the recovery turbine, the consumption of blast-furnace gas in the Cowper stoves and the amount of blast-furnace gas supplied to the gas-energy subsystem of the ironworks. Related to a unit amount of pig iron, these quantities are called energy characteristics of the blast-furnace assembly. They may be used to assess the energy process effects of applying COREX gas in the blast-furnace process. In order to assess the influence of injecting COREX gas into the thermal reserve zone, the zone balance method of the blast-furnace process has been used. 相似文献
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基于煤气脱硫系统运行条件,模拟OMC法脱硫工艺过程,在小型试验台上对模拟煤气进行脱硫效率试验研究。讨论了在OMC法煤气脱硫过程中,碳酸钠溶液浓度、脱硫剂OMC浓度、入口H2S浓度等因素对煤气脱硫效率的影响,得出最优的脱硫生产条件,指出该法适用于煤气中硫化物含量波动大的脱硫方法,与传统ADA脱硫法相比更有利于脱硫效率的提高。 相似文献
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介绍了国内首座F级燃气轮机试验站的基本情况,详细介绍了9FA燃气轮机空负荷试验过程以及试验流程、试验数据的要求,对国内首台F级燃气轮机试车的过程做了详细介绍. 相似文献
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A review is presented on the various process routes and reactor types available for producing methanol from biomass via synthesis gas. Advantages and disadvantages of the various gasifiers and gasification process routes are briefly discussed. The commerically most successful methanol from synthesis gas processes are discussed as well because the characteristics of the downstream methanol synthesis process dictate the optimal composition of the synthesis gas to be produced by the upstream gasification process, the optimal operating pressure and the specifications for the intermediate synthesis gas treatment section. 相似文献
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本文建立了内燃机换气过程缸内压力模拟计算的数学模型。其特点是缸内过程由开口系控制方程控制,进排气管内的过程由特征线法进行计算,进排气管与气缸之间由相应的边界方程相联系。通过实例计算,证明计算结果与实测值能较好地吻合。应用本文提出的方法,可以预测柴油机的换气损失等参数以及结构参数变化对换气过程的影响 相似文献