共查询到19条相似文献,搜索用时 125 毫秒
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通过对原有闲置的合成氨净化、铜洗及尿素系统蒸汽冷凝液回收系统进行改造,将冷凝液有效回收,在保证各系统自身用水的同时,富余的冷凝液汇集后专送造气系统供废热锅炉、煤气发生炉夹套用水,节省了大量的电站除氧软水及其热能,创造了显著的经济效益。 相似文献
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新的终冷工艺集成了煤气冷却、煤气脱萘与煤气冷凝液利用,使煤气净化单元实现煤气梯级冷却。利用终冷器上段冷凝液作为脱氨工序的软水,可以减少焦炉煤气净化单元的剩余氨水量。终冷器利用洗油脱除煤气中的萘,含萘洗油经加热、油水分离后,送往洗苯-脱苯工序再生。 相似文献
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分光光度法测定焦炉煤气中的氰化氢 总被引:2,自引:0,他引:2
本文采用分光光度法测定煤气中的氰化氢,对煤气流速、显色时间、稳定性条件等进行了讨论.分光光度法测定焦炉煤气中的氰化氢具有简单、快速、准确等特点,可用于焦炉煤气生产的监控. 相似文献
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在传统的饱和器法生产硫铵工艺中,煤气预热器竖直安装,占据较大空间,使得煤气水封不得不采取地埋式,水封中的焦油等杂质及冷凝液无法正常排除,当冷凝液液位上升至一定程度时,不得不将煤气水封挖出,处理后重新安装。如将煤气预热器改为带有一定倾角的水平安装,或取消煤气预热器,将节约大量空间,克服这一缺陷。 相似文献
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将煤气终冷工序的冷凝液替代饱和器补充软水,可以减少焦炉煤气净化单元的剩余氨水量。介绍了利用焦化厂煤气终冷工序冷凝液的工艺路线及相应的工艺装置,说明了工艺路线的控制要点。投入工业应用后,可节约水、电、蒸汽消耗和污水处理费用,效果明显。 相似文献
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回顾了我国焦炉煤气净化工艺技术的发展历程,比较了各种焦炉煤气脱硫脱氨组合工艺的优缺点,介绍了配有脱硫废液处理装置的焦炉煤气脱硫、脱氨组合新工艺系统。 相似文献
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本文在分析了榆林气田天然气凝析液混输管线原设计的基础上,结合这条气液混输管线的现场运行状况,对天然气凝析液两相混输管路的工艺设计方法,进行了分析研究。通过横向对比榆林天然气凝析液管线的具体设计数据,纵向对比管线设计数据与现场运行数据的差异,并采用当前较为先进的OLGA工艺设计计算软件对之进行核算,结合以往的工艺设计经验,对目前所采用的天然气凝析液混输管道工艺设计方法提出一些可供参考的新建议和想法。 相似文献
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随着超音速分离技术的研究和发展,超音速分离设备逐步应用到天然气的脱水脱烃和天然气凝液回收等工艺中。本文介绍了超音速分离技术的发展过程,分析了超音速分离技术的原理以及在天然气工业中的应用,结果表明此技术对提高天然气气液分离效果显著,有助于增加天然气凝液的收率,在天然气工业上有较广阔的应用前景。 相似文献
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Ming Zhou Liutong Hou Xingcheng Nie Lei Zhou Jinzhou Zhao Xiao Guo 《Journal of surfactants and detergents》2017,20(5):1019-1026
Condensate liquid in porous media can prevent gas from exiting when the pressure is lower than the dew point pressure in the condensate gas reservoir. This can lead to liquid block and sharp decreases in gas yield. In this work, super-amphiphobic materials were used to remove the liquid block and recover the product. The experiments indicated that this method can effectively remove the damage of liquid block and improve the productivity of the gas well. 相似文献
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汽提塔的浮阀与燃料气预热器管束发生电化学反应,导致换热器内漏,初期少量冷凝液进入换热器管侧,汽化后与燃料气进入一段炉,造成烧嘴燃烧不好,一段炉燃料气用量增加;当内漏量增加时,堵塞管侧,在调节阀处憋压,造成一段炉停车。 相似文献
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A. Asgari M. Dianatirad M. Ranjbaran A.R. Sadeghi M.R. Rahimpour 《Chemical Engineering Research and Design》2014
Well productivity in gas condensate reservoirs is reduced by condensate blockage when the bottom-hole pressure drops below dew point pressure. The present experimental study on limestone cores shows that the relative permeability of gas decreases due to liquid blockage; furthermore, methanol has proven effective in the removal of condensate and restoration of gas relative permeability. In this research, the decrease in gas relative permeability caused by condensate banking and the effect of methanol treatment on condensate-blocked rocks was simulated using the cubic-plus-association (CPA) equation of state. The CPA equation of state was applied to the modeling of two-phase flows through cores for methanol–hydrocarbon mixtures due to charge transfer and hydrogen bonding, both of which may strongly affect the thermodynamic properties of such mixtures. Differential equations were solved by means of the orthogonal collocation method, a method particularly attractive for solving nonlinear problems. The modeling results confirm the experimental results, and both methods indicate that significant productivity loss can occur in retrograde gas condensate reservoirs when the flowing bottom-hole pressure falls below dew point pressure. Moreover, the results show that methanol treatment can improve gas relative permeability by a factor of about 1.3–1.6. These results may help reservoir engineers and specialists to restore the lost productivity of gas condensate. 相似文献