Continuous in-situ combination process for upgrading heavy oil
    2.
    发明授权
    Continuous in-situ combination process for upgrading heavy oil 失效
    连续原位组合工艺提升重油

    公开(公告)号:US5935421A

    公开(公告)日:1999-08-10

    申请号:US734322

    申请日:1996-10-21

    IPC分类号: C10G29/04 C10G67/02 C10G19/02

    CPC分类号: C10G29/04 C10G67/02

    摘要: The invention relates to an integrated, continuous process for the removal of organically bound sulfur (e.g., mercaptans, sulfides and thiophenes) comprising the steps of contacting a heavy oil, sodium hydroxide, hydrogen and water at a temperature of from about 380.degree. C. to 450.degree. C. to partially desulfurize the heavy oil and to form sodium sulfide, contacting said sodium sulfide via steam stripping to convert the sodium sulfide to sodium hydroxide and the sulfur recovered as hydrogen sulfide. The sodium hydroxide is recirculated for reuse. The partially desulfurized, dewatered heavy oil is treated with sodium metal under desulfurizing conditions, typically at a temperature of from about 340.degree. C. to about 450.degree. C., under a hydrogen pressure of at least about 50 psi to essentially desulfurize the oil, and form sodium sulfide. Optionally, the sodium salt generated can be regenerated to sodium metal using regeneration technology. The process advantageously produces essentially sulfur-free product oils having reduced nitrogen, oxygen and metals contents and reduced viscosity, density, molecular weight and heavy ends.

    摘要翻译: 本发明涉及用于去除有机结合硫(例如硫醇,硫化物和噻吩)的一体化连续方法,包括以下步骤:在约380℃的温度下使重质油,氢氧化钠,氢气和水接触。 至450℃,以部分重硫脱硫并形成硫化钠,通过汽提将硫化钠接触,将硫化钠转化为氢氧化钠,硫作为硫化氢回收。 将氢氧化钠再循环以重新使用。 部分脱硫的脱水重油在脱硫条件下,通常在约340℃至约450℃的温度下,在至少约50psi的氢气压力下用金属钠处理以使油基本上脱硫, 并形成硫化钠。 任选地,所生成的钠盐可以使用再生技术再生成金属钠。 该方法有利地产生具有降低的氮,氧和金属含量以及降低的粘度,密度,分子量和重量的基本上无硫产品油。

    Continuous in-situ process for upgrading heavy oil using aqueous base
    6.
    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:US5626742A

    公开(公告)日:1997-05-06

    申请号:US433912

    申请日:1995-05-02

    CPC分类号: C10G19/08 C10G19/02

    摘要: The present invention relates to a continuous in-situ process for the removal of organically bound sulfur existing as mercaptans, sulfides and thiophenes comprising the steps of (a) contacting a heavy oil with aqueous sodium hydroxide at a temperature of about 380.degree. C. to about 450.degree. C. for a time sufficient to form sodium sulfide, and (b) steam stripping the sodium sulfide of step (a) at a temperature sufficient to convert said sodium sulfide to sodium hydroxide and recirculating the sodium hydroxide from step (b) back to step (a) and removing hydrogen sulfide and the metals from the organically bound metal complex of the sodium sulfide to convert it back to sodium hydroxide, in which case the sulfur may be recovered as H.sub.2 S rather than the metal sulfide. 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.

    摘要翻译: 本发明涉及一种用于去除作为硫醇,硫化物和噻吩存在的有机结合的硫的连续原位方法,其包括以下步骤:(a)在约380℃的温度下将重油与氢氧化钠水溶液接触, 约450℃,持续足以形成硫化钠的时间,和(b)在足以将所述硫化钠转化为氢氧化钠并将步骤(b)中的氢氧化钠再循环的温度)下蒸汽汽提步骤(a)的硫化钠, 回到步骤(a)并从硫化钠的有机结合的金属络合物中除去硫化氢和金属,将其转化成氢氧化钠,在这种情况下,硫可以作为H 2 S而不是金属硫化物回收。 任选地,可以在第一步骤中加入分子氢。 本发明可用于除去被认为难以除去的有机结合的硫,例如噻吩。 有利的是,该方法还可除去其他杂原子(氮和氧)和金属(钒,铁,镍)并降低沥青质含量(正庚烷不溶物),微碳残余物,焦炭,975°F级分,TGA固定碳,平均值 分子量,密度和粘度。

    Process for beneficiating Rundle oil-shale
    7.
    发明授权
    Process for beneficiating Rundle oil-shale 失效
    破碎油页岩的选矿工艺

    公开(公告)号:US4587005A

    公开(公告)日:1986-05-06

    申请号:US686728

    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 removing mineral matter from Rundle oil-shale by contacting the oil-shale with (a) an ammonium salt solution and (b) an organic solvent, at a temperature from about 0.degree. C. to about 300.degree. C. for a time which is sufficient to substantially separate at least about 80 wt. % of the carbonate mineral matter from the oil-shale.

    摘要翻译: 公开了一种通过使油页岩与(a)铵盐溶液和(b)有机溶剂在约0℃至约300℃的温度下接触来从Rundle油页岩中除去矿物质的方法。 足以基本分离至少约80wt。 来自油页岩的碳酸盐矿物质的百分比。

    Method for refinery foulant deposit characterization
    8.
    发明授权
    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:US07708864B2

    公开(公告)日:2010-05-04

    申请号:US11173979

    申请日:2005-07-01

    IPC分类号: C10B43/14

    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。

    On-line heat exchanger cleaning method
    9.
    发明申请
    On-line heat exchanger cleaning method 失效
    在线换热器清洗方式

    公开(公告)号:US20060219266A1

    公开(公告)日:2006-10-05

    申请号:US11391258

    申请日:2006-03-29

    IPC分类号: B08B9/00

    摘要: A method for the on-line cleaning of a heat exchanger used with petroleum process fluids which create coke deposits of asphaltenic origin on the exchanger tubes. The asphaltenes are removed by re-dissolution in a solvent oil of high solubility power for the asphaltenes. Certain asphaltenic crudes are useful as solvents in view of their chemical similarity to the asphaltene coke precursors; also useful are refined petroleum fractions such as gas oils which are also characterized by their solvency for asphaltenes. The solvent oil may be admitted to the heat exchanger following withdrawal of the process fluid and then allowed to soak and dissolve the asphaltene coke precursors after which the resulting solution may be withdrawn and the exchanger returned to use without being at any time disconnected from its associated process unit.

    摘要翻译: 一种在线清洗与石油工艺流体一起使用的热交换器的方法,其在交换器管上产生沥青起源的焦炭沉积物。 通过在沥青质中具有高溶解度的溶剂油中再溶解除去沥青质。 鉴于其与沥青质焦炭前体的化学相似性,某些沥青质原油可用作溶剂; 还有用的是精炼的石油馏分如瓦斯油,其特征还在于其对沥青质的溶解性。 溶剂油可以在取出工艺流体之后进入热交换器,然后允许将沥青质焦炭前体浸泡并溶解,之后可以将所得溶液取出并且交换器返回使用,而不会随时与其相关的 处理单元。

    Method of determination of corrosion rate

    公开(公告)号:US20060063263A1

    公开(公告)日:2006-03-23

    申请号:US10946049

    申请日:2004-09-21

    IPC分类号: G01N31/22

    CPC分类号: G01N17/00

    摘要: The corrosion rate of a metal immersed in a fluid medium is measured by transmission of a beam of radiation normally in the visible or near infra-red portion of the spectrum, through a thin film of the metal immersed in the medium. The film of the metal is suitably supported on a radiation-transmitting substrate such as a glass plate or slide. The corrosion rate can be determined by passing a radiation beam through the metal film sample using a twin beam system to compensate for instrument factors such as the absorbance by the fluid medium, the cell windows and the film-supporting substrate. As the thickness of the film decreases, the reduction in film thickness is determined by the increase in beam intensity, using a reference beam to compensate for the instrument factors.