会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 63. 发明申请
    • LIQUEFIED NATURAL GAS PROCESSING
    • 液化天然气加工
    • WO2005035692A2
    • 2005-04-21
    • PCT/US2004021310
    • 2004-07-01
    • ELK CORPWILKINSON JOHN DHUDSON HANK M
    • WILKINSON JOHN DHUDSON HANK M
    • F25J3/02C10L
    • F25J3/0214F25J3/0233F25J3/0238F25J3/0242F25J2200/02F25J2200/04F25J2200/70F25J2200/74F25J2200/76F25J2200/80F25J2210/06F25J2230/08F25J2230/60F25J2235/60F25J2245/02
    • A process and apparatus for the recovery of ethane, ethylene, propane, propylene, and heavier hydrocarbons from a liquefied natural gas (LNG) stream is disclosed. The LNG feed stream is directed in heat exchanger relation with a warmer distillation stream rising from the fractionation stages of a distillation column, whereby the LNG feed stream is partially heated and the distillation stream is partially condensed. The partially condensed distillation stream is separated to provide volatile residue gas and a reflux stream, whereupon the reflux stream is supplied to the column at a top column feed position. A portion of the partially heated LNG feed stream is supplied to the column at an upper mid-column feed point, and the remaining portion is heated further to partially or totally vaporize it and thereafter supplied to the column at a lower mid-column feed position. The quantities and temperatures of the feeds to the column are effective to maintain the column overhead temperature at a temperature whereby the major portion of the desired components is recovered in the bottom liquid product from the column.
    • 公开了一种用于从液化天然气(LNG)流中回收乙烷,乙烯,丙烷,丙烯和较重烃的方法和装置。 LNG进料流与从蒸馏塔的分馏级上升的较热蒸馏流以热交换器关系引导,由此LNG进料流被部分加热并且蒸馏流部分冷凝。 分离部分冷凝的蒸馏物流以提供挥发性残余气体和回流物流,然后在顶部塔进料位置将回流物流供应到塔中。 部分加热的LNG进料流的一部分在上中间柱进料点处供应到塔中,并且剩余部分被进一步加热以部分或全部蒸发,然后在较低的中间塔进料位置供给塔 。 进料到塔的数量和温度有效地将塔顶温度维持在一个温度,从而使所需组分的主要部分在塔的底部液体产物中回收。