• obtaining of gas, liquid, and upgraded solid fuel from brown coals in supercritical water

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 782
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     two new conversion methods of brown coals in water steam and supercritical water (scw) are proposed and investigated. in the first method, water steam or scw is supplied periodically into the array of coal particles and then is ejected from the reactor along with dissolved conversion products. the second method includes the continuous supply of water-coal suspension (wcs) into the vertically arranged reactor from above. when using the proposed methods, agglomeration of coal particles is excluded and a high degree of conversion of coal into liquid and gaseous products is provided. due to the removal of the main mass of oxygen during conversion in the composition of co2, the high heating value of fuels obtained from liquid substantially exceeds this characteristic of starting coal. more than half of the sulfur atoms transfer into h2s during the scw conversion already at a temperature lower than 450°c.

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