System for enhanced fuel gas composition control in an LNG facility
    4.
    发明授权
    System for enhanced fuel gas composition control in an LNG facility 有权
    用于在LNG设施中增强燃料气体成分控制的系统

    公开(公告)号:US08381543B2

    公开(公告)日:2013-02-26

    申请号:US11955141

    申请日:2007-12-12

    IPC分类号: F25J1/00 F02C7/26

    摘要: An LNG facility employing an enhanced fuel gas control system. The enhanced fuel gas control system is operable to produce fuel gas having a substantially constant Modified Wobbe Index (MWI) during start-up and steady-state operation of the LNG facility by processing one or more intermediate process streams in a fuel gas separator. In one embodiment, the fuel gas separator employs a hydrocarbon-separating membrane, which can remove heavy hydrocarbons and/or concentrate nitrogen from the incoming process streams.

    摘要翻译: 采用增强型燃气控制系统的液化天然气设施。 增强的燃料气体控制系统可操作以通过在燃料气体分离器中处理一个或多个中间工艺流来在LNG设备的启动和稳态运行期间产生具有基本上恒定的改进沃泊指数(MWI)的燃料气体。 在一个实施方案中,燃料气体分离器采用烃分离膜,其可从输入的工艺流中除去重质烃和/或浓缩氮。