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    天然气领域中燃气处理

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    FuelSep™(去除H2S, C3+, CO2 , N2, H2O) 

    1. 详细信息

     

    问题

    原料气由于质量不佳,通常不能用作燃气发动机或燃气轮机的燃料来驱动长输管道上的压缩机。原料气中高浓度的H2SC3+会导致燃气机的腐蚀和积碳,而原料气中的CO2N2会降低燃气的热值。任何这些杂质都会影响引擎的工作,增加停机时间,或使排放物浓度不达标。它们在原料气中的存在会使气体不能作为燃气,而不得不使用柴油。


    FuelSep解决方案

    FuelSep系统将原料气净化为优质的燃料气。MTR膜可以在温和的压力下轻易地从燃料气体脱除H2S, C3+, CO2, N2和水。由于这些杂质从原料气体中脱除并返回压缩机入口,因此不会排出废气。燃料气中除去的C3+都会回到主气体中,如果需要,原料气体中的所有天然气凝液(NGL)都可以在下游中回收。这些单元没有移动部件,安装简单,可以无人操作。全球范围有很多装置正在运行。


    优点

    ■ 脱除原料气中的C3+重组分,净化了燃料气

    ■ 脱除大量H2SCO2等酸性气体,减少涡轮机和燃气机尾气中酸性物质的排放

    ■ 提高涡轮机和燃气机的可靠性

    ■ 在常规环境下进行操作,不需外部加热以防止水合物的形成

    ■ 消除燃气机减载

    ■ 降低维护成本,减少计划外的停机时间

    ■ 增加液体的回收率

    不包含移动部件,操作和维护方便

    Problem

    Raw gas often cannot be used to fuel the gas engines or gas turbines driving pipeline compressors due to poor quality. Significant concentrations of H2S and/or C3+ will cause corrosion and carbon build-up in the gas engine. CO2 and nitrogen will lower the BTU value. Any of these impurities can compromise engine operation, increase downtime or at a minimum put emissions out of compliance.  Their presence in the raw gas can even render the gas unusable as fuel so expensive diesel has to be trucked in.

    FuelSep™ Solution

    FuelSep™ systems purify raw gas sidestreams to premium quality fuel gas. MTR membranes easily remove H2S, C3+, CO2, N2 and water from fuel gas at moderate pressure. Because these impurities are taken out of the fuel gas and returned to the compressor suction, there are no effluent streams to be disposed of.  Any C3+ removed from the fuel gas goes back into the main gas stream,  so all NGL in the raw gas stream is available for downstream recovery, if desired.
    These units have no moving parts, are simple to install and operate unattended. Many units are operating worldwide.

    Benefits

    ■  Removes heavy components such as C3+ to clean up fuel gas

    ■  Removes significant portions of acid gases such as H2S and CO2 that will reduce acid formation in the turbine or engine exhaust and reduce emissions

    ■  Increases reliability of gas engines  and turbines

    ■  Operates at ambient conditions with no external heating required to prevent hydrate formation

    ■  Eliminates need to de-rate gas engine

    ■  Decreases maintenance costs and reduces unscheduled downtime

    ■  Increases recovery of liquids

    ■  Contains no moving parts,  simple to operate and maintain