CN110608582A - 一种氩尾气回收提纯装置 - Google Patents

一种氩尾气回收提纯装置 Download PDF

Info

Publication number
CN110608582A
CN110608582A CN201910850307.3A CN201910850307A CN110608582A CN 110608582 A CN110608582 A CN 110608582A CN 201910850307 A CN201910850307 A CN 201910850307A CN 110608582 A CN110608582 A CN 110608582A
Authority
CN
China
Prior art keywords
gas
rectifying tower
argon
circulating
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910850307.3A
Other languages
English (en)
Inventor
薛鲁
马昆
贾盛兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU XINGLU AIR SEPARATION PLANT SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
SUZHOU XINGLU AIR SEPARATION PLANT SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUZHOU XINGLU AIR SEPARATION PLANT SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd filed Critical SUZHOU XINGLU AIR SEPARATION PLANT SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201910850307.3A priority Critical patent/CN110608582A/zh
Publication of CN110608582A publication Critical patent/CN110608582A/zh
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0204—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the feed stream
    • F25J3/0219—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/028—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0228—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream
    • F25J3/028—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases
    • F25J3/0285—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream characterised by the separated product stream separation of noble gases of argon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/08—Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/40—Processes or apparatus using other separation and/or other processing means using hybrid system, i.e. combining cryogenic and non-cryogenic separation techniques
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/82—Processes or apparatus using other separation and/or other processing means using a reactor with combustion or catalytic reaction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/12—Refinery or petrochemical off-gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/42—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/04—Recovery of liquid products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/58—Argon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
    • F25J2240/04—Multiple expansion turbines in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/12—External refrigeration with liquid vaporising loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/14—External refrigeration with work-producing gas expansion loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/14—External refrigeration with work-producing gas expansion loop
    • F25J2270/16—External refrigeration with work-producing gas expansion loop with mutliple gas expansion loops of the same refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/40—Quasi-closed internal or closed external air refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/42—Quasi-closed internal or closed external nitrogen refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/904—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by liquid or gaseous cryogen in an open loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

本发明涉及一种氩尾气回收提纯装置，与前端净化系统相连接，其包括：用于精馏待精馏原料气而得到产品氩气的精馏系统；用于为精馏系统提供热源和冷源、为前端净化系统提供再生气的气体循环系统。精馏系统包括多级精馏塔，精馏塔的顶部设置有精馏塔冷凝器，精馏塔的底部设置有精馏塔蒸发器；第一级精馏塔的前端气体进口与前端净化系统相连接，第一级精馏塔底部的高纯氩气输出口连接至产品氩输出端，每级精馏塔顶部的粗氩气出口连接至其下一级精馏塔的前端气体进口，除第一级精馏塔以外的各级精馏塔底的粗氩气出口连接至其前一级精馏塔的后端气体进口。本发明能够实现安全、高效的氩尾气回收，从而避免氩组分浪费。

Description

一种氩尾气回收提纯装置
技术领域
本发明属于气体回收技术领域，具体涉及一种用于氩尾气的回收提纯装置。
背景技术
含有氩的工业尾气需要进行回收以避免氩组分直排浪费。现有的氩回收装置难以达到令人满意的回收效果，存在回收率低、安全性差等问题。
发明内容
本发明的目的是提供一种回收率高、系统安全性高的氩尾气回收提纯装置。
为达到上述目的，本发明采用的技术方案是：
一种氩尾气回收提纯装置，用于回收处理氩尾气，所述氩尾气中的杂质为CO、N2、H2中二种或三种，所述氩尾气回收提纯装置与用于净化所述氩尾气并输出待精馏原料气的前端净化系统相连接，所述氩尾气回收提纯装置包括：
用于精馏所述待精馏原料气而得到产品氩气的精馏系统；
用于为所述精馏系统提供热源和冷源、为所述前端净化系统提供再生气的气体循环系统；
所述精馏系统包括多级精馏塔，所述精馏塔的顶部设置有精馏塔冷凝器，所述精馏塔的底部设置有精馏塔蒸发器；第一级所述精馏塔的前端气体进口与前端净化系统相连接，第一级所述精馏塔底部的高纯氩气输出口连接至产品氩输出端，每级所述精馏塔顶部的粗氩气出口连接至其下一级所述精馏塔的前端气体进口，除第一级所述精馏塔以外的各级所述精馏塔底的粗氩气出口连接至其前一级所述精馏塔的后端气体进口。
优选的，每级所述精馏塔顶部的粗氩气出口经过用于脱除浓缩的CO或H2的循环气净化系统后连接至其下一级所述精馏塔的前端气体进口。
优选的，所述精馏塔顶部的粗氩气出口依次经过粗氩气膨胀机的增压端、粗氩气冷却器后连接至所述循环气净化系统。
优选的，所述循环气净化系统为催化净化系统或吸附净化系统。
优选的，第一级所述精馏塔顶部的粗氩气出口还经增压机连接至所述前端净化系统而为所述前端净化系统提供还原气或再生气。
优选的，所述气体循环系统包括循环气体压缩机、循环气体膨胀机、循环气体冷却器，所述循环气体压缩机的出气口连接至所述精馏塔蒸发器的进气口，所述精馏塔蒸发器的出液口连接至所述精馏塔冷凝器的进液口，所述精馏塔冷凝器顶部的循环气体出口分别连接至所述循环气体压缩机的进气口、所述循环气体膨胀机的增压端，所述循环气体膨胀机的增压端依次经过所述循环气体冷却器、所述循环气体膨胀机的膨胀端后连接至所述前端净化系统。
优选的，不同的所述精馏塔冷凝器分别与所述循环气体压缩机的进气口或所述循环气体膨胀机的增压端相连接。
优选的，所述精馏塔冷凝器顶部的循环气体出口与所述循环气体压缩机的进气口之间的连接管路上、所述精馏塔冷凝器顶部的循环气体出口与所述循环气体膨胀机的增压端之间的连接管路上分别设置有用于补充循环介质的补充支路。
优选的，所述气体循环系统中的循环介质为氮气或空气。
优选的，所述氩尾气回收提纯装置还包括若干个换热器。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：本发明能够实现安全、高效的氩尾气回收，从而避免氩组分浪费。
附图说明
附图1为本发明的实施例一的示意图。
附图2为本发明的实施例二的示意图。
以上附图中：1、主换热器；2、第一精馏塔（下塔）；3、副换热器；4、循环气体膨胀机；5、粗氩气膨胀机；6、粗氩气冷却器；7、第二精馏塔（上塔）；8、第一蒸发器；9、第二蒸发器；10、第一冷凝器；11、第二冷凝器；12、液氮过冷器；13、循环气体冷却器；14、循环气体压缩机；15、增压机。
具体实施方式
下面结合附图所示的实施例对本发明作进一步描述。
实施例一：如附图1所示，一种氩尾气回收提纯装置，包括精馏系统和气体循环系统，它与用于净化氩尾气并输出待精馏原料气的前端净化系统相连接。所处理的氩尾气中的杂质主要为CO、N2、H2中二种或三种。
精馏系统用于精馏待精馏原料气而得到产品氩气，其包括至少一个精馏塔。优选为精馏系统包括多级精馏塔，每个精馏塔的顶部均设置有对应的精馏塔冷凝器，每个精馏塔的底部均设置有对应的精馏塔蒸发器。第一级精馏塔的前端气体进口与前端净化系统相连接，第一级精馏塔底部的高纯氩气输出口连接至产品氩输出端，每级精馏塔顶部的粗氩气出口连接至其下一级精馏塔的前端气体进口，除第一级精馏塔以外的各级精馏塔底的粗氩气出口连接至其前一级精馏塔的后端气体进口。本实施例中，以设置两级精馏塔为例，两级精馏塔分别为第一精馏塔（下塔）2和第二精馏塔（上塔）7，第一精馏塔（下塔）2分别对应第一冷凝器10和第一蒸发器8，第二精馏塔（上塔）7分别对应第二冷凝器11和第二蒸发器9。则第一精馏塔（下塔）2的前端进气口与前端净化系统相连接，第一精馏塔（下塔）2底部的高纯氩气输出口连接至产品氩输出端，第一精馏塔（下塔）2的粗氩气出口连接至第二精馏塔（上塔）7的前端气体进口，第二精馏塔（上塔）7底的粗氩气出口连接至第一精馏塔（下塔）2的后端气体进口。
在相邻两级精馏塔之间，每级精馏塔顶部的粗氩气出口经过用于脱除浓缩的CO或H2的循环气净化系统后连接至其下一级精馏塔的前端气体进口，精馏塔顶部的粗氩气出口依次经过粗氩气膨胀机5的增压端、粗氩气冷却器6后连接至循环气净化系统。则在本实施例中，第一精馏塔（下塔）2顶部的粗氩气出口依次经过粗氩气膨胀机5的增压端、粗氩气冷却器6、循环气净化系统后连接至第二精馏塔（上塔）7的前端气体进口。循环气净化系统为催化净化系统或吸附净化系统。
气体循环系统用于为精馏系统提供热源和冷源、为前端净化系统提供再生气。气体循环系统包括循环气体压缩机14、循环气体膨胀机4、循环气体冷却器13，循环气体压缩机14的出气口连接至各级精馏塔蒸发器的进气口，精馏塔蒸发器的出液口连接至对应的精馏塔冷凝器的进液口，精馏塔冷凝器顶部的循环气体出口分别连接至循环气体压缩机14的进气口、循环气体膨胀机4的增压端，循环气体膨胀机4的增压端再依次经过循环气体冷却器13、循环气体膨胀机4的膨胀端后连接至前端净化系统。可以令不同的精馏塔冷凝器分别与循环气体压缩机14的进气口或循环气体膨胀机4的增压端相连接。则在本实施例中，第一精馏塔（下塔）2顶部的第一冷凝器10的循环气体出口连接至循环气体压缩机14的进气口，而第二精馏塔（上塔）7顶部的第二冷凝器11的循环气体出口则依次经循环气体膨胀机4的增压端、循环气体冷却器13、循环气体膨胀机4的膨胀端后连接至前端净化系统。在循环气体冷却器13之后，可以分为两路支路，其中一路如上述经循环气体膨胀机4的膨胀端后连接至前端净化系统，另一路则可以经过粗氩气膨胀机5的膨胀端后连接至前端净化系统。
上述气体循环系统中的循环介质为氮气或空气，本实施例中选用氮气。
精馏塔冷凝器顶部的循环气体出口与循环气体压缩机14的进气口之间的连接管路上、精馏塔冷凝器顶部的循环气体出口与循环气体膨胀机4的增压端之间的连接管路上分别设置有用于补充循环介质的补充支路。本实施例中具体为第一精馏塔冷凝器顶部的循环气体出口与循环气体压缩机14的进气口之间的连接管路上设置有用于补充氮气的氮气补充支路，精馏塔冷凝器顶部的循环气体出口与循环气体膨胀机4的增压端之间的连接管路上设置有用于补充液氮的液氮补充支路。
上述氩尾气回收提纯装置还包括若干个换热器，换热器设置在所需位置来实现换热功能，可以设置一个，也可以设置多个，本领域的技术人员可以根据需要基于公知常识而合理设置。本实施例中，设置两个换热器（分别为主换热器1和副换热器2）、一个液氮过冷器12。
采用上述氩尾气回收提纯装置来回收处理氩尾气的流程如下：
1、彻底净化后的待精馏原料气经主换热器1冷却后进入第一精馏塔（下塔）2参与精馏，第一精馏塔（下塔）2底部得到产品高纯氩气经主换热器1、副换热器2复热后作为产品送入客户。
2、第一精馏塔（下塔）2顶部输出的粗氩气经主换热器1复热后进入粗氩气膨胀机5的增压端增压，再经粗氩气冷却器6冷却后进入循环气净化系统。净化后的粗氩气进入副换热器2冷却后进第二精馏塔（上塔）7参与精馏，第二精馏塔（上塔）7塔底得到粗氩气送入第一精馏塔（下塔）2中部参与精馏。第二精馏塔（上塔）7塔顶得到废氩气进液氮过冷器12复热后放空。
3、冷箱来的循环氮气与补充氮气经循环气体压缩机14压缩后经副换热器2冷却后分别进入第一精馏塔（下塔）2的第一蒸发器8、第二精馏塔（上塔）7的第二蒸发器9提供热源，氮气液化成液氮经阀门节流后分别进入第一精馏塔（下塔）2的第一冷凝器10、第二精馏塔（上塔）7的第二冷凝器11提供精馏塔所需冷源。
4、第一精馏塔（下塔）2的第一冷凝器10顶部氮气经液氮过冷器12、副换热器2复热后进入循环气体压缩机14。
5、第二精馏塔（上塔）7的第二冷凝器11顶部氮气经液氮过冷器12复热后，与补充液氮汇合进入主换热器1复热后进入循环气体膨胀机4的增压端增压，再经循环气体冷却器13冷却，冷却后的氮气进主换热器1进一步降温后送入循环气体膨胀机4的膨胀端、粗氩气膨胀机5的膨胀端膨胀，膨胀后的氮气汇总经主换热器1复热后进入前端净化系统提供再生氮气。
上述氩尾气回收提纯装置的产品氩气提取率：≥95%。
实施例二：如附图2所示，一种氩尾气回收提纯装置，包括精馏系统和气体循环系统。
精馏系统用于精馏待精馏原料气而得到产品氩气，其包括至少一个精馏塔。优选为精馏系统包括多级精馏塔，每个精馏塔的顶部均设置有对应的精馏塔冷凝器，每个精馏塔的底部均设置有对应的精馏塔蒸发器。第一级精馏塔的前端气体进口与前端净化系统相连接，第一级精馏塔底部的高纯氩气输出口连接至产品氩输出端，每级精馏塔顶部的粗氩气出口连接至其下一级精馏塔的前端气体进口，除第一级精馏塔以外的各级精馏塔底的粗氩气出口连接至其前一级精馏塔的后端气体进口。本实施例中，以设置两级精馏塔为例，两级精馏塔分别为第一精馏塔（下塔）2和第二精馏塔（上塔）7，第一精馏塔（下塔）2分别对应第一冷凝器10和第一蒸发器8，第二精馏塔（上塔）7分别对应第二冷凝器11和第二蒸发器9。则第一精馏塔（下塔）2的前端进气口与前端净化系统相连接，第一精馏塔（下塔）2底部的高纯氩气输出口连接至产品氩输出端，第一精馏塔（下塔）2的粗氩气出口的一个支路直接连接至第二精馏塔（上塔）7的前端气体进口，第二精馏塔（上塔）7底的粗氩气出口连接至第一精馏塔（下塔）2的后端气体进口。
第一级精馏塔顶部的粗氩气出口的另一个支路则经增压机15连接至前端净化系统，提供还原气。
气体循环系统用于为精馏系统提供热源和冷源、为前端净化系统提供再生气。气体循环系统包括循环气体压缩机14、循环气体膨胀机4、循环气体冷却器13，循环气体压缩机14的出气口连接至各级精馏塔蒸发器的进气口，精馏塔蒸发器的出液口连接至对应的精馏塔冷凝器的进液口，精馏塔冷凝器顶部的循环气体出口分别连接至循环气体压缩机14的进气口、循环气体膨胀机4的增压端，循环气体膨胀机4的增压端再依次经过循环气体冷却器13、循环气体膨胀机4的膨胀端后连接至前端净化系统。可以令不同的精馏塔冷凝器分别与循环气体压缩机14的进气口或循环气体膨胀机4的增压端相连接。则在本实施例中，第一精馏塔（下塔）2顶部的第一冷凝器10的循环气体出口连接至循环气体压缩机14的进气口，而第二精馏塔（上塔）7顶部的第二冷凝器11的循环气体出口则依次经循环气体膨胀机4的增压端、循环气体冷却器13、循环气体膨胀机4的膨胀端后连接至前端净化系统。
上述气体循环系统中的循环介质为氮气或空气，本实施例中选用氮气。
精馏塔冷凝器顶部的循环气体出口与循环气体压缩机14的进气口之间的连接管路上、精馏塔冷凝器顶部的循环气体出口与循环气体膨胀机4的增压端之间的连接管路上分别设置有用于补充循环介质的补充支路。本实施例中具体为第一冷凝器10顶部的循环气体出口与循环气体压缩机14的进气口之间的连接管路上设置有用于补充氮气的氮气补充支路，第二冷凝器11顶部的循环气体出口与循环气体膨胀机4的增压端之间的连接管路上设置有用于补充液氮的液氮补充支路。
上述氩尾气回收提纯装置还包括若干个换热器，换热器设置在所需位置来实现换热功能，可以设置一个，也可以设置多个，本领域的技术人员可以根据需要基于公知常识而合理设置。本实施例中，设置两个换热器（分别为主换热器1和副换热器2）、一个液氮过冷器12。
采用上述氩尾气回收提纯装置来回收处理氩尾气的流程如下：
1、彻底净化后的待精馏原料气经主换热器1冷却后进入第一精馏塔（下塔）2参与精馏，第一精馏塔（下塔）2底部得到产品高纯氩气经主换热器1、副换热器2复热后作为产品送入客户。
2、第一精馏塔（下塔）2顶部粗氩气一部分经主换热器1复热后再进入增压机15增压，然后进入前端净化系统，提供还原气；另一部分粗氩气进第二精馏塔（上塔）7参与精馏，第二精馏塔（上塔）7塔底得到粗氩气送入第一精馏塔（下塔）2中部参与精馏。第二精馏塔（上塔）7塔顶得到废氩气进主换热器1复热后放空。
3、冷箱来的循环氮气与补充氮气经循环气体压缩机14压缩后经副换热器2冷却后分别进入第一精馏塔（下塔）2的第一蒸发器8、第二精馏塔（上塔）7的第二蒸发器9提供热源，氮气液化成液氮经阀门节流后分别进入第一精馏塔（下塔）2的第一冷凝器10、第二精馏塔（上塔）7的第二冷凝器11提供精馏塔所需冷源。
4、第一精馏塔（下塔）2第一冷凝器10顶部氮气经液氮过冷器12、副换热器2复热后进入循环气体压缩机14。
5、第二精馏塔（上塔）7的第二冷凝器11顶部氮气经液氮过冷器12复热后与补充液氮汇合进入主换热器1复热，然后进入循环气体膨胀机4的增压端增压后，再经循环气体冷却器13冷却，冷却后的氮气进主换热器1进一步降温后送入循环气体膨胀机4的膨胀端膨胀，膨胀后的氮气经主换热器1复热后进入前端净化系统提供再生氮气。
上述氩尾气回收提纯装置的产品氩气提取率：≥95%。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

1.一种氩尾气回收提纯装置，用于回收处理氩尾气，所述氩尾气中的杂质为CO、N2、H2中二种或三种，其特征在于：所述氩尾气回收提纯装置与用于净化所述氩尾气并输出待精馏原料气的前端净化系统相连接，所述氩尾气回收提纯装置包括：
用于精馏所述待精馏原料气而得到产品氩气的精馏系统；
用于为所述精馏系统提供热源和冷源、为所述前端净化系统提供再生气的气体循环系统；
所述精馏系统包括多级精馏塔，所述精馏塔的顶部设置有精馏塔冷凝器，所述精馏塔的底部设置有精馏塔蒸发器；第一级所述精馏塔的前端气体进口与前端净化系统相连接，第一级所述精馏塔底部的高纯氩气输出口连接至产品氩输出端，每级所述精馏塔顶部的粗氩气出口连接至其下一级所述精馏塔的前端气体进口，除第一级所述精馏塔以外的各级所述精馏塔底的粗氩气出口连接至其前一级所述精馏塔的后端气体进口。
2.根据权利要求1所述的一种氩尾气回收提纯装置，其特征在于：每级所述精馏塔顶部的粗氩气出口经过用于脱除浓缩的CO或H2的循环气净化系统后连接至其下一级所述精馏塔的前端气体进口。
3.根据权利要求2所述的一种氩尾气回收提纯装置，其特征在于：所述精馏塔顶部的粗氩气出口依次经过粗氩气膨胀机的增压端、粗氩气冷却器后连接至所述循环气净化系统。
4.根据权利要求3所述的一种氩尾气回收提纯装置，其特征在于：所述循环气净化系统为催化净化系统或吸附净化系统。
5.根据权利要求1所述的一种氩尾气回收提纯装置，其特征在于：第一级所述精馏塔顶部的粗氩气出口还经增压机连接至所述前端净化系统而为所述前端净化系统提供还原气或再生气。
6.根据权利要求1所述的一种氩尾气回收提纯装置，其特征在于：所述气体循环系统包括循环气体压缩机、循环气体膨胀机、循环气体冷却器，所述循环气体压缩机的出气口连接至所述精馏塔蒸发器的进气口，所述精馏塔蒸发器的出液口连接至所述精馏塔冷凝器的进液口，所述精馏塔冷凝器顶部的循环气体出口分别连接至所述循环气体压缩机的进气口、所述循环气体膨胀机的增压端，所述循环气体膨胀机的增压端依次经过所述循环气体冷却器、所述循环气体膨胀机的膨胀端后连接至所述前端净化系统。
7.根据权利要求6所述的一种氩尾气回收提纯装置，其特征在于：不同的所述精馏塔冷凝器分别与所述循环气体压缩机的进气口或所述循环气体膨胀机的增压端相连接。
8.根据权利要求6所述的一种氩尾气回收提纯装置，其特征在于：所述精馏塔冷凝器顶部的循环气体出口与所述循环气体压缩机的进气口之间的连接管路上、所述精馏塔冷凝器顶部的循环气体出口与所述循环气体膨胀机的增压端之间的连接管路上分别设置有用于补充循环介质的补充支路。
9.根据权利要求1所述的一种氩尾气回收提纯装置，其特征在于：所述气体循环系统中的循环介质为氮气或空气。
10.根据权利要求1所述的一种氩尾气回收提纯装置，其特征在于：所述氩尾气回收提纯装置还包括若干个换热器。
CN201910850307.3A 2019-09-10 2019-09-10 一种氩尾气回收提纯装置 Pending CN110608582A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910850307.3A CN110608582A (zh) 2019-09-10 2019-09-10 一种氩尾气回收提纯装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910850307.3A CN110608582A (zh) 2019-09-10 2019-09-10 一种氩尾气回收提纯装置

Publications (1)

Publication Number Publication Date
CN110608582A true CN110608582A (zh) 2019-12-24

Family

ID=68892539

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910850307.3A Pending CN110608582A (zh) 2019-09-10 2019-09-10 一种氩尾气回收提纯装置

Country Status (1)

Country Link
CN (1) CN110608582A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113959179A (zh) * 2021-12-22 2022-01-21 杭州制氧机集团股份有限公司 一种用于液氩提纯的装置及方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001194055A (ja) * 1999-10-20 2001-07-17 Sumisho Fine Gas Kk アルゴンの回収方法および同装置
CN101968298A (zh) * 2010-09-27 2011-02-09 开封空分集团有限公司 合成氨驰放气中氩与甲烷的分离回收装置及方法
CN104406364A (zh) * 2014-11-06 2015-03-11 杭州杭氧股份有限公司 一种双塔耦合的氩气回收纯化设备及氩气回收纯化方法
CN104848654A (zh) * 2015-06-08 2015-08-19 上海启元空分技术发展股份有限公司 一种天然气中提取氩气的方法和装置
CN107606874A (zh) * 2017-10-26 2018-01-19 上海联风能源科技有限公司 一种全精馏提纯回收氩气的装置及其回收氩气的方法
CN108645118A (zh) * 2018-06-07 2018-10-12 上海联风能源科技有限公司 一种提高氩气回收率的装置及方法
CN109186179A (zh) * 2018-09-30 2019-01-11 苏州制氧机股份有限公司 全精馏提氩富氧空分装置及工艺
CN210569508U (zh) * 2019-09-10 2020-05-19 苏州市兴鲁空分设备科技发展有限公司 一种氩尾气回收提纯装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001194055A (ja) * 1999-10-20 2001-07-17 Sumisho Fine Gas Kk アルゴンの回収方法および同装置
CN101968298A (zh) * 2010-09-27 2011-02-09 开封空分集团有限公司 合成氨驰放气中氩与甲烷的分离回收装置及方法
CN104406364A (zh) * 2014-11-06 2015-03-11 杭州杭氧股份有限公司 一种双塔耦合的氩气回收纯化设备及氩气回收纯化方法
CN104848654A (zh) * 2015-06-08 2015-08-19 上海启元空分技术发展股份有限公司 一种天然气中提取氩气的方法和装置
CN107606874A (zh) * 2017-10-26 2018-01-19 上海联风能源科技有限公司 一种全精馏提纯回收氩气的装置及其回收氩气的方法
CN108645118A (zh) * 2018-06-07 2018-10-12 上海联风能源科技有限公司 一种提高氩气回收率的装置及方法
CN109186179A (zh) * 2018-09-30 2019-01-11 苏州制氧机股份有限公司 全精馏提氩富氧空分装置及工艺
CN210569508U (zh) * 2019-09-10 2020-05-19 苏州市兴鲁空分设备科技发展有限公司 一种氩尾气回收提纯装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113959179A (zh) * 2021-12-22 2022-01-21 杭州制氧机集团股份有限公司 一种用于液氩提纯的装置及方法
CN113959179B (zh) * 2021-12-22 2022-05-03 杭州制氧机集团股份有限公司 一种用于液氩提纯的装置及方法

Similar Documents

Publication Publication Date Title
CN102472575B (zh) 空气液化分离方法及装置
CN101886871B (zh) 一种空气分离制取压力氧气的方法及装置
CA2063928C (en) Process for low-temperature air fractionation
CN110701870B (zh) 一种利用lng冷能的空分装置和方法
CN102721263A (zh) 一种利用深冷技术分离空气的系统及方法
US20230003445A1 (en) Full liquid-product air separation equipment and process therefor
CN211926303U (zh) 全液体空分设备
CN210569508U (zh) 一种氩尾气回收提纯装置
CN110542279A (zh) 一种含甲烷、碳氢化合物的氩尾气回收提纯装置
CN113562701A (zh) 一种利用低温法回收电解水制氢副产氧气的装置及方法
CN108759311A (zh) 大液体量制取的空分装置及方法
CN102445054A (zh) 一种由空气分离制取氧气和氮气的工艺
CN106440659A (zh) 一种低能耗内压缩空分装置
CN106352656B (zh) 一种用液氮洗制氨合成气联产lng的装置及其方法
CN110608582A (zh) 一种氩尾气回收提纯装置
CN210952073U (zh) 一种含甲烷、碳氢化合物的氩尾气回收提纯装置
CN104390427A (zh) 高低温双膨胀节能型制氮装置及制氮方法
CN109357475B (zh) 一种梯级利用lng冷能制取液氧液氮的系统
CN203432208U (zh) 超低压制取高纯氧气和氮气装置
CN204702504U (zh) 一种合成气分离制取氢气及高纯一氧化碳装置
CN211782276U (zh) 一种提高产量降低能耗的空气分离系统
CN211177620U (zh) 一种pdh分离系统联产燃料电池车用氢气装置
CN103438663A (zh) 超低压制取高纯氧气和氮气装置及工艺
CN114017993B (zh) 一种利用绿电电解水制氢副产氧气的装置及方法
CN115540499A (zh) 一种闪蒸废气低温增压循环生产高纯氮气和超纯氧气的装置及方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination