Method and system for reducing heating value of natural gas
    1.
    发明授权
    Method and system for reducing heating value of natural gas 有权
    降低天然气热值的方法和系统

    公开(公告)号:US09086188B2

    公开(公告)日:2015-07-21

    申请号:US12176619

    申请日:2008-07-21

    摘要: Disclosed is a system for reducing a heating value of natural gas. The system includes a heat exchanger to liquefy a portion of components having high heating values, a gas-liquid separator to separate the liquefied component, and a nitrogen adding mechanism to add nitrogen to remaining non-liquefied components. The system includes an additional heat exchanger to cool and liquefy the remaining non-liquefied components after the gas-liquid separator separates the liquefied component from the natural gas. The heat exchangers employ cold heat generated upon regasification of LNG. The system can reduce the heating value of natural gas composed of a variety of hydrocarbon components according to requirements of a place of demand by separating the component with the higher heating value from the natural gas to allow the separated component to be used as fuel, thereby reducing an overall size and operating costs of the system.

    摘要翻译: 公开了一种降低天然气发热量的系统。 该系统包括用于液化具有高热值的部件的一部分的热交换器,用于分离液化组分的气液分离器和用于向剩余的非液化组分添加氮的氮添加机构。 该系统包括另外的热交换器,用于在气液分离器将液化组分与天然气分离之后冷却和液化剩余的非液化组分。 热交换器采用在LNG再气化时产生的冷热。 该系统可以根据需求场所的要求,通过将具有较高发热值的部件与天然气分离,从而将分离的部件用作燃料,从而降低由各种烃成分构成的天然气的发热量,由此 减少系统的总体规模和运营成本。

    APPARATUS AND METHOD FOR INCREASING EFFICIENCY OF A GAS TURBINE AND A MARINE STRUCTURE HAVING THE SAME
    7.
    发明申请
    APPARATUS AND METHOD FOR INCREASING EFFICIENCY OF A GAS TURBINE AND A MARINE STRUCTURE HAVING THE SAME 审中-公开
    提高气体涡轮机效率的装置和方法及其相关的海洋结构

    公开(公告)号:US20090249798A1

    公开(公告)日:2009-10-08

    申请号:US12175194

    申请日:2008-07-17

    IPC分类号: F17C9/02

    摘要: An apparatus and method for increasing efficiency of a gas turbine and a marine structure having the gas turbine are disclosed. The marine structure includes an ambient LNG vaporizer for regasifying cryogenic LNG via heat exchange with air and the gas turbine for generating electric power. The marine structure includes a moist-air mixing chamber disposed at an upstream side of the gas turbine, a condensed-water nozzle to spray condensed water, generated from air during the heat exchange in the LNG vaporizer, into the moist-air mixing chamber; and a cold air supply pipe to supply air, cooled by the heat exchange in the LNG vaporizer, to the gas turbine via the moist-air mixing chamber. The method reduces the temperature of air supplied to the gas turbine by condensed water or cold air generated during regasification of LNG through the ambient vaporizer in the marine structure, thereby increasing the efficiency of the gas turbine.

    摘要翻译: 公开了一种用于提高燃气轮机和具有燃气轮机的船用结构的效率的装置和方法。 海洋结构包括用于通过与空气和用于产生电力的燃气轮机进行热交换来再生低温LNG的环境LNG蒸发器。 海洋结构包括设置在燃气轮机的上游侧的湿气混合室,冷凝水喷嘴,用于将在LNG蒸发器中的热交换期间由空气产生的冷凝水喷射到湿空气混合室中; 以及冷气供给管,其经由湿式空气混合室将经由LNG蒸发器中的热交换而冷却的空气供给到燃气轮机。 该方法通过在海洋结构中的环境蒸发器在LNG再气化过程中产生的冷凝水或冷空气降低供应给燃气轮机的空气的温度,从而提高燃气轮机的效率。