焦汤节流已在油气生产工业中应用了许多年,它在于气体通过节流阀从高压到低压的绝热膨胀.以适当的热交换和大的压力差,可以获得高效率所要的低温.由于是绝热过程,对于一定的收率而言,它同等熵膨胀相比需要更多的能量.但在同实用膨胀机及外部制冷流程的取舍上,焦汤节流流程在低原料气量,有限度的乙烷收率,原料气量波动很大,操作简单等方面呈现出超越膨胀机流程的优点.介绍了焦汤节流的基本原理,总结了焦汤节流流程在轻烃回收装置中应用情况.“,”The JouleThomson throttle has been applied in oil and gas production for many years.Its effect is to get a low temperature necessary for raising effectiveness by a suitable heat exchange and large pressure difference by means of the adiabatic expansion generated by the gas passing through a choke valve from high pressure to low pressure.Because it is an adiabatic process,it needs more energy in comparison with the isentropic expansion for a certain recovery....