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    • 4. 发明授权
    • Method of treating natural gas to remove ethane and higher hydrocarbons
    • 处理天然气以除去乙烷和高级烃的方法
    • US4932213A
    • 1990-06-12
    • US309584
    • 1989-02-10
    • David L. SummersDonald A. Martin
    • David L. SummersDonald A. Martin
    • C10G5/06F25J3/06
    • C10G5/06F25J3/061F25J3/0635F25J3/064F25J2205/02F25J2210/06F25J2240/40F25J2245/02F25J2270/02F25J2280/02
    • A high pressure stream of natural gas is treated to remove ethane and higher boiling point hydrocarbons and to produce a low pressure stream of pipeline gas and a high pressure stream of pipeline gas. The method comprises the steps of:(a) passing at least a portion of said high pressure stream of natural gas sequentially through:(1) a first heat exchanger where said stream of natural gas is cooled,(2) a Joule-Thompson valve where said stream of natural gas is expanded adiabatically and the temperature and pressure of the stream are each reduced sufficiently to cause ethane and high boiling fluids to condense, and(3) a first gas/liquid separator where a stream of low pressure pipeline gas is separated from condensed fluids;(b) withdrawing the low pressure pipeline gas from said first separator and flowing it through said first heat exchanger, where the gas is warmed, and into a pipeline or other suitable collector; and(c) withdrawing the condensed fluids from said first separator.
    • 处理高压天然气流以除去乙烷和高沸点烃,并产生管道气体和高压管道气体流的低压流。 该方法包括以下步骤:(a)使天然气的至少一部分高压气流顺序地通过:(1)第一热交换器,其中所述天然气流被冷却,(2)焦耳汤普森阀 其中所述天然气流绝热膨胀,并且每个流的温度和压力都被充分地降低以使乙烷和高沸点流体冷凝,和(3)第一气/液分离器,其中低压管道气体流是 与冷凝液分离; (b)从所述第一分离器取出低压管道气体并将其流过所述第一热交换器,在所述第一热交换器中气体被加热,并进入管道或其它合适的收集器; 和(c)从所述第一分离器中取出冷凝的流体。