液相高精度吸附脱除SO2新工艺在混合脱氢装置的工业应用
目的 脱除作为混合脱氢装置原料的烷基化碳四(C4)中的SO2杂质,控制SO2体积分数＜1×10-6.方法 采用液相高精度吸附脱硫工艺,通过吸附再生的方式实现其连续运行.当原料通过吸附脱除SO2达到饱和后,流程上可通过氮气循环置换、升温汽提及空气再生的手段,重新恢复SO2吸附剂的吸附能力,并再次投入生产使用,以确保装置的安全平稳长周期运行.结果 采用液相高精度吸附脱硫工艺可将烷基化C4中SO2体积分数从30×10-6～400×10-6脱除至1 ×10-6以下.结论 对吸附脱硫工艺的吸附剂、工艺流程进行优化调整,缩短了吸附剂的再生时间,保障了装置工业化连续运行.同时,液相高精度吸附脱硫工艺流程操作...
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| Published in | 石油与天然气化工 Vol. 53; no. 1; pp. 8 - 28 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
陕西延长石油(集团)有限责任公司延安石油化工厂
2024
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-3426 |
| DOI | 10.3969/j.issn.1007-3426.2024.01.002 |
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| Abstract | 目的 脱除作为混合脱氢装置原料的烷基化碳四(C4)中的SO2杂质,控制SO2体积分数＜1×10-6.方法 采用液相高精度吸附脱硫工艺,通过吸附再生的方式实现其连续运行.当原料通过吸附脱除SO2达到饱和后,流程上可通过氮气循环置换、升温汽提及空气再生的手段,重新恢复SO2吸附剂的吸附能力,并再次投入生产使用,以确保装置的安全平稳长周期运行.结果 采用液相高精度吸附脱硫工艺可将烷基化C4中SO2体积分数从30×10-6～400×10-6脱除至1 ×10-6以下.结论 对吸附脱硫工艺的吸附剂、工艺流程进行优化调整,缩短了吸附剂的再生时间,保障了装置工业化连续运行.同时,液相高精度吸附脱硫工艺流程操作简便,能耗较低,安全风险较低. |
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| AbstractList | 目的 脱除作为混合脱氢装置原料的烷基化碳四(C4)中的SO2杂质,控制SO2体积分数＜1×10-6.方法 采用液相高精度吸附脱硫工艺,通过吸附再生的方式实现其连续运行.当原料通过吸附脱除SO2达到饱和后,流程上可通过氮气循环置换、升温汽提及空气再生的手段,重新恢复SO2吸附剂的吸附能力,并再次投入生产使用,以确保装置的安全平稳长周期运行.结果 采用液相高精度吸附脱硫工艺可将烷基化C4中SO2体积分数从30×10-6～400×10-6脱除至1 ×10-6以下.结论 对吸附脱硫工艺的吸附剂、工艺流程进行优化调整,缩短了吸附剂的再生时间,保障了装置工业化连续运行.同时,液相高精度吸附脱硫工艺流程操作简便,能耗较低,安全风险较低. |
| Abstract_FL | Objective The aim is to remove the SO2 impurities in the alkylated C4 as the raw material of the mixed dehydrogenation device and control the SO2 volume fraction less than 1 X 10-6.Methods The liquid-phase high-precision adsorption desulfurization process was used to achieve continuous operation by adsorption regeneration.When the raw material was saturated by removing SO2 with adsorption,the adsorption capacity of SO2 adsorbent could be restored by means of nitrogen cycle replacement,heating stripping and air regeneration in the process,and put into production again to ensure the safe,stable and long-term operation of the unit.Result The SO2 volume fraction in alkylated C4 could be removed from 30 × 10-6-400× 10-6 to less than 1 × 10-6 by adopting the liquid-phase high-precision adsorption desulfurization process.Conclusions The adsorbent and process flow of the adsorption desulfurization process were optimized and adjusted,which shortened the regeneration time of the adsorbent and ensured the continuous operation of the device industrialization.At the same time,the liquid phase high-precision adsorption desulfurization process is simple to operate,which has low energy consumption and safety risk. |
| Author | 巩文博 王艳 田萍萍 白永涛 马健 |
| AuthorAffiliation | 陕西延长石油(集团)有限责任公司延安石油化工厂 |
| AuthorAffiliation_xml | – name: 陕西延长石油(集团)有限责任公司延安石油化工厂 |
| Author_FL | WANG Yan BAI Yongtao TIAN Pingping MA Jian GONG Wenbo |
| Author_FL_xml | – sequence: 1 fullname: GONG Wenbo – sequence: 2 fullname: BAI Yongtao – sequence: 3 fullname: MA Jian – sequence: 4 fullname: TIAN Pingping – sequence: 5 fullname: WANG Yan |
| Author_xml | – sequence: 1 fullname: 巩文博 – sequence: 2 fullname: 白永涛 – sequence: 3 fullname: 马健 – sequence: 4 fullname: 田萍萍 – sequence: 5 fullname: 王艳 |
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| DocumentTitle_FL | Industrial application of a new process for high-precision adsorption removal of SO2 from liquid phase in a mixed dehydrogenation unit |
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| Keywords | sulfur dioxide high precision 液相异丁烷 molecular sieve concentrated sulfuric acid regeneration 浓硫酸 alkylated C4 分子筛 liquid phase isobutane 吸附脱除 高精度 SO2 再生 adsorption removal 烷基化碳四 |
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| Publisher | 陕西延长石油(集团)有限责任公司延安石油化工厂 |
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| Title | 液相高精度吸附脱除SO2新工艺在混合脱氢装置的工业应用 |
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