Oil tank sludge removal method
    12.
    发明申请
    Oil tank sludge removal method 审中-公开
    油罐污泥去除方法

    公开(公告)号:US20060042661A1

    公开(公告)日:2006-03-02

    申请号:US11187671

    申请日:2005-07-22

    IPC分类号: B08B9/00

    CPC分类号: B08B9/0933

    摘要: A method for removing sludge from a petroleum storage tank is based on a two-step approach utilizing solvent extraction to dissolve organic components of the sludge followed by water wash to remove inorganic materials. Sludges contain both organic-based solids (e.g., waxes and asphaltenes) as well as inorganic-based solids (known to exist as salts such as chlorides, carbonates, and oxides). The organic components of the sludge are dissolved using petroleum-based solvent streams that have been identified to possess high solvent power. The dissolved material can then be processed and recovered in the refinery using conventional refining operations. A water wash following removal of the organic materials is effective to remove the inorganic materials that can then be disposed of without the complications of the having to treat the oily organics along with them. A beneficial part of the method includes mixing and heating to improve the dissolution of soluble materials in both steps of the process.

    摘要翻译: 从石油储罐中除去污泥的方法是基于利用溶剂萃取溶解污泥的有机组分的两步法,然后进行水洗以除去无机材料。 淤泥含有有机基固体(例如蜡和沥青质)以及基于无机的固体(已知以诸如氯化物,碳酸盐和氧化物的盐的形式存在)。 使用已被认定为具有高溶剂能力的石油基溶剂流使污泥的有机成分溶解。 然后可以使用常规的精炼操作将溶解的材料在炼油厂中加工和回收。 去除有机材料后的水洗有效地除去可以处理的无机材料,而不需要与它们一起处理油性有机物的并发症。 该方法的有益部分包括混合和加热以改善可溶物质在该方法的两个步骤中的溶解。

    Method for refinery foulant deposit characterization
    13.
    发明申请
    Method for refinery foulant deposit characterization 有权
    炼油厂污垢沉积特性的方法

    公开(公告)号:US20060014296A1

    公开(公告)日:2006-01-19

    申请号:US11173979

    申请日:2005-07-01

    IPC分类号: G01N24/00

    摘要: The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble sample with a scanning electron microscope and energy dispersive x-rays, performing a thermal gravimetric analysis including an ash test on the insoluble sample to determine the presence of polymer, coke and inorganic elements, performing an elemental analysis on the insoluble sample for the elements carbon, hydrogen, sulfur, nitrogen, halogens, and metals, performing an optical microscopy on the insoluble sample to determine the presence of wax, asphaltenes, anisotropic coke and isotropic coke, and identifying the solid foulant.

    摘要翻译: 本发明是一种识别未知组合物的炼厂固体污垢的方法,包括以下步骤:获得固体污垢样品,用溶剂从样品中除去捕获的饲料以获得不溶性样品,用扫描电子显微镜扫描不溶性样品 和能量色散X射线,进行热重分析,包括对不溶性样品进行灰分测试,以确定聚合物,焦炭和无机元素的存在,对不溶性样品进行碳,氢,硫,氮的元素分析 ,卤素和金属,对不溶性样品进行光学显微镜检查,以确定蜡,沥青质,各向异性焦炭和各向同性焦炭的存在,并鉴定固体污垢。

    Process for upgrading heavy oil using alkaline earth metal hydroxide
    14.
    发明授权
    Process for upgrading heavy oil using alkaline earth metal hydroxide 失效
    使用碱土金属氢氧化物升级重油的工艺

    公开(公告)号:US5871637A

    公开(公告)日:1999-02-16

    申请号:US933918

    申请日:1997-09-22

    申请人: Glen Brons

    发明人: Glen Brons

    IPC分类号: C10G19/02 C10G19/08 C10G19/00

    CPC分类号: C10G19/02 C10G19/08

    摘要: The present invention relates to a continuous in-situ process for reducing the viscosity, corrosivity and density of heavy oils comprising the steps of (a) contacting a heavy oil with an aqueous alkaline earth, Group IIA metal hydroxide at a temperature of about 380.degree. to about 450.degree. C. for a time sufficient to form the corresponding alkaline earth metal sulfide, recovering the reduced sulfur feed and regenerating the alkaline metal hydroxide for recycle to treat additional feed. Beneficially, the process removes heteroatoms (sulfur and nitrogen).

    摘要翻译: 本发明涉及一种用于降低重油的粘度,腐蚀性和密度的连续原位方法,包括以下步骤:(a)在约380℃的温度下使重油与碱土金属水溶液IIA族金属氢氧化物接触 至约450℃的时间足以形成相应的碱土金属硫化物,回收还原的硫进料并再生碱金属氢氧化物用于再循环以处理额外的进料。 有利地,该方法除去杂原子(硫和氮)。

    Continuous in-situ process for upgrading heavy oil using aqueous base
    15.
    发明授权
    Continuous in-situ process for upgrading heavy oil using aqueous base 失效
    连续原位使用含水碱升级重油

    公开(公告)号:US5635056A

    公开(公告)日:1997-06-03

    申请号:US433907

    申请日:1995-05-02

    IPC分类号: C10G19/02 C10G19/08 C10G29/20

    CPC分类号: C10G19/02 C10G19/08

    摘要: The present invention relates to a continuous in-situ process for the removal from heavy oils, of organically bound sulfur in the form of mercaptans, sulfides and thiophenes, heteroatoms selected from the group consisting of nitrogen and oxygen and metals selected from the group consisting of nickel, vanadium and iron, comprising the steps of (a) contacting a heavy oil with aqueous sodium hydroxide at a temperature of about 380.degree. to about 450.degree. C. for a time sufficient to form sodium sulfide; (b) contacting said sodium sulfide of step (a) with water and a transition metal for a time and at a temperature sufficient to form transition metal sulfide, sodium hydroxide, hydrogen and impurities; and (c) recirculating said sodium hydroxide from step (b) to step (a) and removing said transition metal sulfide and said impurities, wherein said impurities are iron, vanadium and nickel. Optionally, molecular hydrogen may be added in the first step. The present invention is useful in removing organically bound sulfur that has been recognized to be difficult to remove, such as thiophenes. Beneficially, the process also removes other heteroatoms (nitrogen and oxygen) and metals (vanadium, iron, nickel) and reduces asphaltene content (n-heptane insolubles), micro concarbon residue, coke, 975.degree. F. fractions, TGA fixed carbon, average molecular weight, density and viscosity.

    Process for beneficiating oil-shale
    17.
    发明授权
    Process for beneficiating oil-shale 失效
    油页岩选矿工艺

    公开(公告)号:US4587004A

    公开(公告)日:1986-05-06

    申请号:US686608

    申请日:1984-12-27

    IPC分类号: C10G1/00 C10G1/04 C10L9/02

    CPC分类号: C10L9/02 C10G1/00 C10G1/04

    摘要: Disclosed is a process for beneficiating oil-shale wherein the oil-shale is treated in a first stage with an aqueous ammonium salt solution and in a second stage and optionally a third stage in the presence of a solution containing ammonium ions/ammonia, or both. The pH of the first stage is from about 5 to 9, and the pH of the second and third stages are from about 0.5 to 5 or about 9 to 12 with the proviso that the pH of the second and third stage is not in the same range.

    摘要翻译: 公开了一种选择油页岩的方法,其中油页岩在第一阶段用铵盐水溶液处理,在第二阶段和任选的第三阶段中,在含有铵离子/氨或两者的溶液存在下 。 第一阶段的pH为约5至9,第二和第三阶段的pH为约0.5至5或约9至12,条件是第二和第三阶段的pH不相同 范围。