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    • 10. 发明授权
    • Treating of a crude containing natural gas
    • 处理含天然气的原油
    • US07568363B2
    • 2009-08-04
    • US11942497
    • 2007-11-19
    • David Bertil Runbalk
    • David Bertil Runbalk
    • F25J1/02
    • F25J3/0247C10G7/00C10G7/12F25J3/0209F25J3/0233F25J2200/04F25J2200/70F25J2200/74F25J2205/04F25J2230/60F25J2245/02F25J2260/20F25J2260/60
    • A process for treating a crude containing natural gas comprising supplying the crude to a stabilization unit to obtain a gaseous stream and crude oil; supplying a compressed, gaseous stream at a low temperature to the bottom of a first column; partly condensing the first gaseous overhead stream, returning the liquid phase to the first column and supplying the methane-rich stream to a liquefaction plant; supplying an expanded bottom stream at a low temperature to the top of a second column; removing from the top of the second column a second gaseous overhead stream, and removing from the bottom of the second column a liquid bottom stream; vaporizing part of the bottom stream and introducing the vapor into the bottom of the second column; and introducing the remainder of the bottom stream into a crude oil stream at an appropriate point in or upstream of the stabilization unit, wherein the amount of heat removed from the first gaseous overhead stream is so adjusted that the concentration of C5+ in the first gaseous overhead stream is below a predetermined value, and wherein the fraction of the liquid bottom stream from the second column that is vaporized is so selected that the concentration of C2− in the liquid bottom stream is below a predetermined level.
    • 一种用于处理含粗制天然气的方法,包括将粗品供应至稳定单元以获得气流和原油; 在低温下向第一塔的底部供应压缩气流; 部分地冷凝第一气态塔顶物流,将液相返回到第一塔并将富甲烷物流供应给液化装置; 在低温下将膨胀的底部流供应到第二塔的顶部; 从第二塔的顶部除去第二气态塔顶物流,并从第二塔的底部除去液体底部物流; 蒸发底部流的一部分并将蒸气引入第二塔的底部; 并将底部物流的剩余部分在稳定单元中或上游的适当位置引入原油流中,其中从第一气态塔顶馏出物流中除去的热量被调整为使第一气体塔顶馏出物中的C5 +的浓度 流低于预定值,并且其中来自蒸发的来自第二塔的液体底部流的分数被选择为使得液体底部流中的C2-浓度低于预定水平。