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    Beneficiation of coal for storage, transportation, and gasification
    1.
    发明授权
    Beneficiation of coal for storage, transportation, and gasification 有权

    公开(公告)号：US11421169B2

    公开(公告)日：2022-08-23

    申请号：US16684875

    申请日：2019-11-15

    申请人： TerraPower, LLC

    发明人： Benjamin L. Goodrich ,  Pyoungchung Kim ,  Evan Terrell ,  Joshua C. Walter

    IPC分类号： C10L5/08 ,  C10B53/04 ,  C10B57/10 ,  C10L5/36

    摘要： This document describes methods for pretreating coal to create either a dried coal or a char product that is stable in the outdoor environment and is more efficient as a feedstock for gasification or other processes than the original coal. Embodiments of the methods include pulverizing and pelletizing the coal, and pretreating the coal pellets to obtain a stable pellet of either dried coal or a stable pellet of chared coal (coal char). The pellets created by the described methods have undergone deoxygenation and carbonization improving their handling and storage properties and, in some cases, energy density. Pore structures within the pellets are stabilized physically and chemically so that the uptake of moisture into dry coal, that leads to internal heat generation, is greatly reduced. Chars are also, therefore, stable against transitions from a dry state to a wet state and less prone to self-ignition.

    Fuel lubricity additive
    7.
    发明授权
    Fuel lubricity additive 有权

    公开(公告)号：US09745531B2

    公开(公告)日：2017-08-29

    申请号：US11235075

    申请日：2005-09-27

    申请人： Yuen May Choo ,  Sit Foon Cheng ,  Ah Ngan Ma ,  Yusof Basiron

    发明人： Yuen May Choo ,  Sit Foon Cheng ,  Ah Ngan Ma ,  Yusof Basiron

    IPC分类号： C10L1/19 ,  C10L5/08 ,  C10L10/08

    CPC分类号： C10L10/08 ,  C10L1/191

    摘要： A lubricity additive for fuels with sulphur content of not more than 0.05 wt % is described herein. The lubricity additive comprises a polyol ester or a mixture of polyol esters derived from C8-C18 saturated and/or unsaturated fatty acids. The polyol esters is produced by: i) esterification of a C8-C18 saturated or unsaturated fatty acids, or a mixture thereof, with a polyhydric alcohol; ii) transesterification of an oil or a mixture of oils, with fatty acid composition comprising C8-C18 saturated and/or unsaturated fatty acids, with a polyhydric alcohol. The preferred fatty acids are unsaturated C18 fatty acids, more particularly, oleic acid whereas the preferred polyhydric alcohol is neopolyol, more particularly, trimethylol propane and its isomers. A fuel composition comprising a major amount of fuel with sulphur content of not more than 0.05 wt % and a minor amount of the lubricity additive is also described herein. The amount of the lubricity additive is not more than 0.1 wt %.