Treatment of a waste sludge to produce a non-sticking fuel
    1.
    发明授权
    Treatment of a waste sludge to produce a non-sticking fuel 失效
    处理废泥以产生不粘燃料

    公开(公告)号:US5288413A

    公开(公告)日:1994-02-22

    申请号:US887720

    申请日:1992-05-22

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    摘要: A waste sludge that contains water, oil and solids is subjected to filtration under vacuum or an applied inert gas pressure, preferably no more than 50 psia while utilizing a filter aid, to retain the maximum amount of oil in the filter cake. The filter cake is then dried at a relatively low temperature, slightly above the boiling point of water, to selectively remove water and produce a high heating value non-sticking solid. The product thus obtained in suitable for use as a solid fuel for a cement kiln or other combustion facilities. Depending on the amount of oil present in the original sludge, the applied pressure can be varied to retain different amounts of oil and to produce different heating values desired in the final solid fuel.

    摘要翻译: 含有水,油和固体的废泥在真空或施加的惰性气体压力下进行过滤,优选不超过50psia,同时使用助滤剂,以将最大量的油保持在滤饼中。 然后将滤饼在稍低于水沸点的较低温度下干燥,以选择性地除去水并产生高热值的不粘固体。 这样得到的产品适合用作水泥窑或其他燃烧设备的固体燃料。 取决于原始污泥中存在的油的量,施加的压力可以变化以保持不同量的油并产生最终固体燃料中所需的不同加热值。

    Decontamination extraction process for treatment of oily solids
    2.
    发明授权
    Decontamination extraction process for treatment of oily solids 失效
    用于处理油性固体的去污提取方法

    公开(公告)号:US5279747A

    公开(公告)日:1994-01-18

    申请号:US946683

    申请日:1992-09-18

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    IPC分类号: B01D11/04 B01D11/02

    CPC分类号: B01D11/0488

    摘要: A process for the removal of hydrocarbons from contaminated oily solids performed under atmospheric conditions by utilizing a single processing zone wherein multiple processing steps are carried out to remove contaminants. The steps include loading contaminated oily solids into a zone where the solids are reduced in size, dewatering or deoiling the oily solids, drying the resulting solids to remove moisture and volatile organics, extracting the resulting dried solid with organic solvent and further drying the extracted resulting dried solid to remove residual moisture, volatile organics and residual solvent, and fixing the metals.

    摘要翻译: 一种在大气条件下通过利用单一处理区从污染的油状固体中除去烃的方法,其中执行多个处理步骤以除去污染物。 步骤包括将污染的油状固体装入固体尺寸减小的区域,脱水或除油油状固体,干燥所得固体以除去水分和挥发性有机物,用有机溶剂萃取所得干燥固体,并进一步干燥萃取的结果 干燥固体以除去残留水分,挥发性有机物和残留溶剂,并固定金属。

    Fuel preparation from a waste sludge
    3.
    发明授权
    Fuel preparation from a waste sludge 失效
    来自废渣的燃料制备

    公开(公告)号:US5141526A

    公开(公告)日:1992-08-25

    申请号:US702568

    申请日:1991-05-20

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    IPC分类号: B01D37/02 C10G31/09 C10L7/02

    CPC分类号: B01D37/02 C10G31/09 C10L7/02

    摘要: Waste sludge that contains water, solids and oil, is mixed with a filter aid that has filter aid characteristics and a heating value of at least 1,000 Btu/lb. The admixture obtained is subjected to filtration yielding a high-Btu combustible material, useful as fuel. This combustible material, optionally after drying to remove water, is very suitable for use as fuel in a cement kiln.

    摘要翻译: 含有水,固体和油的废污泥与助滤剂混合,助滤剂具有助滤剂特性,热值至少为1,000Btu / lb。 所获得的混合物进行过滤,产生可用作燃料的高-Btu可燃材料。 这种可燃材料,任选地在干燥以除去水之后,非常适合用作水泥窑中的燃料。

    Process for removing NH.sub.3 from a liquid stream
    5.
    发明授权
    Process for removing NH.sub.3 from a liquid stream 失效
    从液体流中除去NH 3的方法

    公开(公告)号:US5244645A

    公开(公告)日:1993-09-14

    申请号:US769282

    申请日:1991-10-01

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    摘要: This invention is a process for removing NH.sub.3 from a NH.sub.3 -containing liquid stream. The process contains the following steps: (a) passing a NH.sub.3 -containing first liquid stream, a heated first gaseous stream, and an ammonium salt-containing second liquid stream obtained from step (d) of this process to a spray drying zone thereby spray drying the liquid stream and producing a spray drying zone effluent containing ammonia-containing gas and solid particles containing ammonium salts; (b) passing the spray drying zone effluent to a solid/gas separating means thereby separating and removing at least a portion of the solid particles and thereby producing a second gaseous stream comprising ammonia and entrained solid particles containing ammonium salts; (c) passing the second gaseous stream to a scrubbing zone to scrub the second gaseous stream, at scrubbing conditions, in the presence of an inorganic or organic acid thereby forming a gaseous stream substantially free of ammonia and an ammonium salt-containing liquid stream containing ammonium salts; and (d) passing at least a portion of the ammonium salt-containing liquid stream as the second liquid stream to the spray drying zone.

    摘要翻译: 本发明是从含NH 3的液体物流中除去NH 3的方法。 该方法包括以下步骤:(a)将含NH 3的第一液体流,加热的第一气流和从该方法的步骤(d)获得的含铵盐的第二液体物流送入喷雾干燥区,从而喷雾 干燥液体流并产生含有含氨气体和含有铵盐的固体颗粒的喷雾干燥区流出物; (b)将喷雾干燥区流出物通入固体/气体分离装置,从而分离和除去至少一部分固体颗粒,从而产生包含氨和夹带的含有铵盐的固体颗粒的第二气流; (c)在洗涤条件下,在无机或有机酸的存在下,使第二气流进入洗涤区以洗涤第二气流,从而形成基本上不含氨的含有铵盐的液态物流,其含有 铵盐; 和(d)将至少一部分含铵盐的液体流作为第二液体流送入喷雾干燥区。

    Removal of hydrogen sulfide from a carbon dioxide containing gas mixture
    6.
    发明授权
    Removal of hydrogen sulfide from a carbon dioxide containing gas mixture 失效
    从含二氧化碳的气体混合物中除去硫化氢

    公开(公告)号:US4822576A

    公开(公告)日:1989-04-18

    申请号:US114165

    申请日:1987-10-27

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    IPC分类号: B01D53/14

    摘要: Gas mixtures containing a substantial amount of CO.sub.2 are treated to remove H.sub.2 S by using a selective solvent containing CO.sub.2, usually obtained by understripping loaded solvent during regeneration.

    摘要翻译: 使用含有CO 2的选择性溶剂处理含有大量CO 2的气体混合物以除去H 2 S,通常通过在再生期间过载负载的溶剂获得。

    Cyanide removal from oily solid using a solvent extraction process
    7.
    发明授权
    Cyanide removal from oily solid using a solvent extraction process 失效
    使用溶剂萃取方法从油状固体中除去氰化物

    公开(公告)号:US5284991A

    公开(公告)日:1994-02-08

    申请号:US946685

    申请日:1992-09-18

    申请人: Humbert H. Chu

    发明人: Humbert H. Chu

    CPC分类号: B09C1/02 B09C1/06

    摘要: A process for the removal of cyanides from contaminated oily solid waste performed by utilizing a single processing zone wherein multiple processing steps are carried out to remove contaminants. The steps include loading a contaminated oily solid waste into a zone where the solid is reduced in size, adjusting the pH of the oily solid waste, dewatering or deoiling the oily solid waste and drying the resulting solid, extracting the resulting dried solid with organic solvent, and further drying the extracted solid to remove residual moisture, cyanide, solvent, and volatile organics.

    摘要翻译: 通过利用单个处理区进行污染的油性固体废物中的氰化物的除去方法,其中执行多个处理步骤以除去污染物。 步骤包括将污染的油性固体废物装入固体尺寸减小的区域,调节油状固体废物的pH值,脱油或除油油状固体废物,并干燥所得固体,用有机溶剂萃取所得干燥固体 并进一步干燥提取的固体以除去残留的水分,氰化物,溶剂和挥发性有机物。