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    • 4. 发明申请
    • THERMAL DISSOLUTION CATALYSIS METHOD FOR PREPARING LIQUID FUEL FROM LIGNITE AND THE CATALYST AND THE SOLVENT SUITABLE FOR THE METHOD
    • 用于从Lignite和催化剂制备液体燃料的热解决方案和适用于该方法的溶剂
    • US20100258479A1
    • 2010-10-14
    • US12746583
    • 2008-12-10
    • Ke WuChong ChenWenyi HuangPai PengChunlai Wu
    • Ke WuChong ChenWenyi HuangPai PengChunlai Wu
    • C10G1/00C10G1/06B01J31/12B01F1/00
    • C01G1/06B01J31/146B01J31/1805B01J31/2213B01J2531/37B01J2531/64B01J2531/842B01J2531/845C01G29/00C01G39/00C01G49/00C01G51/00
    • The present invention relates to coal chemical processing, and particularly to a thermal dissolution catalysis method for preparing liquid fuel from lignite. The method comprises steps of: 1) crushing and drying lignite into coal powder; 2) stirring and mixing coal powder, a solvent and a catalyst sufficiently to form coal slurry, wherein there are 30-40% mass of coal powder, 60-70% mass of solvent, and 0.5-1% mass of catalyst relative to coal powder mass; 3) subjecting the coal slurry to thermal dissolution catalysis reaction to obtain thermal dissolution liquefied product, wherein the reaction is carried out for 30-60 minutes at a temperature 390-450° C. under a pressure 5.0-9.0 MPa; 4) separating the thermal dissolution liquefied product into gas, liquid and solid phases; and 5) upgrading the liquid product into liquid fuel. The present invention further discloses a catalyst and a solvent for use in the above method. The method according to the present invention requires moderate operation conditions and can enable organic matter in the lignite to convert at a relatively high level, the liquid fuel product, after being processed, can be used to prepare engine fuel meeting a national standard; the method requires a simple preparation apparatus, a small investment and a low cost and is a coal liquefying method meeting China's status quo.
    • 本发明涉及煤化学处理,特别涉及从褐煤制备液体燃料的热溶解催化方法。 该方法包括以下步骤:1)将褐煤粉碎和干燥成粉煤灰; 2)充分搅拌和搅拌煤粉,溶剂和催化剂,形成煤浆,其中煤粉含量为30-40%,溶剂质量为60-70%,催化剂质量相对于煤为0.5-1% 粉末质量 3)对煤浆进行热溶解催化反应,得到热溶液化产物,其中在温度390-450℃,压力5.0-9.0MPa下反应30-60分钟; 4)将热溶解液化产物分离成气相,液相和固相; 和5)将液体产品升级成液体燃料。 本发明还公开了用于上述方法的催化剂和溶剂。 根据本发明的方法需要适度的操作条件,并且能够使褐煤中的有机物质以较高的水平转化,液态燃料产品经处理后可用于制备符合国家标准的发动机燃料; 该方法需要一个简单的准备装置,投资少,成本低,是符合中国现状的煤液化方法。
    • 9. 发明授权
    • Compositions and methods for waste treatment
    • 废物处理的组成和方法
    • US5649894A
    • 1997-07-22
    • US403924
    • 1995-05-01
    • Timothy John WhiteJames Hamilton KyleGregory Francis Eaton
    • Timothy John WhiteJames Hamilton KyleGregory Francis Eaton
    • A62D3/00A62D3/33A62D3/38A62D101/04A62D101/40A62D101/43A62D101/45A62D101/47B09B3/00C01B25/37C01B25/455C01F11/46C01G1/02C01G1/06C01G11/00C01G13/00C01G21/00C01G28/02C02F1/62C02F11/00C04B18/04G21F9/00
    • C04B18/0463A62D3/33A62D3/38B09B3/0041C01B25/37C01B25/455C01G1/02C01G1/06C01G28/023A62D2101/04A62D2101/40A62D2101/43A62D2101/45A62D2101/47A62D2203/02C01P2006/60C04B2111/00784Y02W30/91
    • Methods for waste treatment and compositions of stabilized waste elements are provided, typically for the disposal of arsenical wastes. Arsenic trioxide waste produced as a by-product of metal extraction is slurried in water for from 6 to 24 hours with finely divided quicklime to produce nonvolatile calcium arsenate (III). An excess of CaO stoichiometry with As is used to consume secondary waste species such as sulphate, silicate and iron oxides. The precipitated arsenate is oven dried at 120.degree. C. and then calcined in air between 15 minutes to several hours at 1000.degree. C. to 500.degree. C. respectively to oxidize arsenate (III) to arsenate (V) as Ca.sub.5 (AsO.sub.4).sub.3 (OH) (an apatite) as the major arsenic immobilization phase, with minor arsenic incorporated in Ca.sub.3 (AsO.sub.4).sub.2. Calcium sulphate anhydrate (sulphate immobilization) and calcium iron oxide (iron immobilization) are also produced. Tertiary immobilization is achieved milling or fracturing and incorporating the apatite an encapsulant consisting of ordinary portland cement and flyash. After curing for one month in steel drums in a water saturated atmosphere, the waste form is ready to be transported either to a repository or to used as landfill. Further security may be achieved at the back end of the process by lining the repository with ferric clays that will strongly absorb and adsorb heavy metal species which may escape.
    • PCT No.PCT / AU93 / 00489 Sec。 371日期:1995年5月1日 102(e)日期1995年5月1日PCT提交1993年9月21日PCT公布。 出版物WO94 / 06575 日期1995年3月31日提供废物处理方法和稳定化废物的组成,通常用于处理砷废物。 作为金属萃取副产物产生的三氧化二砷废水在水中制成6至24小时,细碎的生石灰生成不挥发性砷酸钙(III)。 过量的CaO化学计量与As一起用于消耗二次废物物质,如硫酸盐,硅酸盐和氧化铁。 将沉淀的砷酸盐在120℃下烘箱干燥,然后在空气中在1000℃〜500℃下在15分钟〜数小时之间煅烧,分别将Ca(AsO 4)3的砷酸盐(III)氧化为砷酸盐(V) (OH)(磷灰石)作为主要的砷固定相,在Ca3(AsO4)2中掺入少量砷。 也产生硫酸钙无水物(硫酸盐固定化)和氧化铁(铁固定化)。 三次固定实现了铣削或压裂,并将磷灰石作为由普通波特兰水泥和飞灰组成的密封剂。 在水饱和气氛中,在钢桶中固化一个月后,废物形式准备运往储存库或用作填埋场。 通过用强力吸收和吸附可能逸出的重金属物质的铁粘土衬里储存库,可以在该方法的后端实现进一步的安全性。