Reactivation of hydrotreating catalyst by operating at a temperature in
excess of normal operating temperature
    2.
    发明授权
    Reactivation of hydrotreating catalyst by operating at a temperature in excess of normal operating temperature 失效
    通过在超过正常工作温度的温度下操作来加氢处理催化剂的再活化

    公开(公告)号:US4048094A

    公开(公告)日:1977-09-13

    申请号:US716716

    申请日:1976-08-23

    CPC classification number: C10G73/44 B01J23/94

    Abstract: A method for reactivating the catalyst used in the mild hydrotreating of petroleum crude scale wax comprises contacting the catalyst with the feedstream at a temperature in excess of the normal operating temperature for the particular feedstream for a time sufficient to reactivate the catalyst and produce effluent having satisfactory color and stability characteristics. Operation at a temperature in excess of the normal operating temperature may follow conventional air-stream catalyst regeneration.

    Abstract translation: 用于重新催化用于石油原油标准蜡的轻度加氢处理的催化剂的方法包括使催化剂与进料流在特定原料流的超过正常操作温度的温度下接触足够的时间以使催化剂再活化并产生令人满意的流出物 颜色和稳定特性。 在超过正常工作温度的温度下操作可以遵循常规的气流催化剂再生。

    Catalyst and process for hydrofining petroleum wax
    4.
    发明授权
    Catalyst and process for hydrofining petroleum wax 失效
    加氢精炼石油蜡的催化剂和工艺

    公开(公告)号:US4186078A

    公开(公告)日:1980-01-29

    申请号:US898490

    申请日:1978-04-20

    Abstract: A catalyst and process are described for hydrofining petroleum wax comprising contacting the wax with hydrogen in the presence of a catalyst comprising at least one metal hydrogenating component on a porous alumina/silica carrier containing from about 0.2 to 5 wt.% of an alkali metal component, the catalyst having a specific surface area of about 200 to 300 m.sup.2 /g and being further characterized in that (a) the volume of pores having a diameter in the range of 60 to 150 A is greater than 80% of the volume of pores having a diameter in the range of 0 to 150 A and (b) the volume of pores having a diameter in the range of 0 to 600 A is in the range of about 0.45 to 0.60 ml/g.

    Abstract translation: 描述了用于加氢精制石油蜡的催化剂和方法,其包括在包含至少一种金属氢化组分的催化剂存在下,将蜡与氢接触,所述催化剂和方法含有约0.2至5重量%的碱金属组分 ,所述催化剂的比表面积为约200至300m 2 / g,并且其特征还在于(a)直径在60至150A范围内的孔的体积大于孔体积的80% 直径在0至150A范围内,(b)直径在0至600A范围内的孔的体积在约0.45至0.60ml / g的范围内。

    Modification of particle hardness in waxy crude oil slurries
    6.
    发明授权
    Modification of particle hardness in waxy crude oil slurries 失效
    蜡质原油浆液中颗粒硬度的改性

    公开(公告)号:US3900041A

    公开(公告)日:1975-08-19

    申请号:US46896974

    申请日:1974-05-13

    CPC classification number: F17D1/088

    Abstract: Previously, waxy crude oils have been fractionated into a wax fraction and a liquid fraction; the wax fraction formed into particles and slurried into the liquid fraction for transportation in pipelines. Particle stability is enhanced by extruding molten wax without substantial crystalline structure into a hot wax immiscible fluid flowing cocurrent to the extruded wax and under conditions which will quickly form a smooth shell, and thereafter cooling to form hard, smooth spheres which resist mechanical degradation and which further approach a stabilized, or maximum, pressure drop at a slower rate than non-hardened particles. This treatment results in a particle which can be pumped in a pipeline at heavier particle loadings or with less pressure.

    Abstract translation: 以前,蜡质原油已经分馏成蜡馏分和液体馏分; 蜡馏分形成颗粒并浆化成用于在管道中运输的液体馏分。 通过将不具有实质的晶体结构的熔融蜡挤出到与挤出的蜡并流流动的热蜡不混溶的流体中并在快速形成光滑的壳体的条件下,并且随后冷却以形成抵抗机械降解的硬的,平滑的球体,从而增强颗粒稳定性, 进一步接近以比非硬化颗粒更慢的速率稳定或最大的压降。 这种处理产生的颗粒可以以更重的颗粒负载或更小的压力在管道中泵送。

    Process for producing powdered paraffin wax
    7.
    发明授权
    Process for producing powdered paraffin wax 失效
    生产粉状PARAFFIN WAX的方法

    公开(公告)号:US3804744A

    公开(公告)日:1974-04-16

    申请号:US25711172

    申请日:1972-05-26

    Applicant: FERA J

    Inventor: FERA J

    CPC classification number: C10G73/40

    Abstract: THIS INVENTION RELATES TO A PROCESS FOR PRODUCING POWDERED PARAFFIN WAX, CHARACTERIZED BY COMPRISING THE STEPS OF HEATING THE LIQUID PARAFFIN WAX TO A TEMPERATURE BETWEEN 50*C. AND 70*C., SPRAYING THE LIQUID PARAFFIN WAX INTO A HIGH VELOCITY FLOW OF COLD AIR, MAINTAINING THE MIXTURE UNTIL THE PARAFFIN WAX SOLIDIFIES, AND SEPARATING THE POWDERED PARAFFIN WAX FROM THE AIR, DISCHARGING THE PARAFFIN WAX FOR FURTHER OPERATIONS.

    Catalytic refining process for tank bottoms wax
    8.
    发明授权
    Catalytic refining process for tank bottoms wax 失效
    罐底蜡的催化精制工艺

    公开(公告)号:US4148711A

    公开(公告)日:1979-04-10

    申请号:US812795

    申请日:1977-07-05

    CPC classification number: C10G73/44

    Abstract: High melting, deoiled and mildly deasphalted tank bottoms wax is catalytically refined in two stages using a catalyst comprising nickel molybdate on alumina. The first stage is maintained at a temperature at least about 50.degree. F. higher than the second stage and the temperature in the second stage is allowed to go no higher than about 575.degree. F. Hydrofined wax product from the second stage is recycled back into same and the temperature in the first stage is periodically increased in order to counteract deactivation of the catalyst. By using a judicious combination of process conditions, unrefined high melting tank bottoms microwax stocks can be made into high quality, high melting point microwax having excellent color and meeting FDA purity requirements.

    Abstract translation: 使用包含氧化钼上的钼酸镍的催化剂在两个阶段催化精炼高熔点,脱油和轻度脱沥青罐底部蜡。 第一阶段保持在比第二阶段高至少约50°F的温度,第二阶段的温度不高于约575°F。来自第二阶段的加氢精制蜡产品被再循环回 相同,并且周期性地增加第一阶段中的温度以抵消催化剂的失活。 通过使用工艺条件的合理组合,未精制的高熔点底部微量油可以制成高品质,高熔点的微蜡,具有优异的颜色,符合FDA的纯度要求。

    Urea adduction process for refrigeration oil manufacture
    9.
    发明授权
    Urea adduction process for refrigeration oil manufacture 失效
    冷冻机油制造尿素内收过程

    公开(公告)号:US4070269A

    公开(公告)日:1978-01-24

    申请号:US731272

    申请日:1976-10-12

    CPC classification number: C10G73/24

    Abstract: In the process of manufacturing a refrigeration oil where an oil stock is dewaxed by forming a complex with urea in the presence of an activator, the improvement of adding hot vacuum gas oil to the separated urea complex whereby the activator is flashed off and is recycled for reuse and the slurry of the urea complex in the gas oil is treated with hot water to break the adduct and separate a water-urea mixture and oil and paraffin. The improved method enables accurate and uniform temperature control and degradation of urea is suppressed.

    Abstract translation: 在通过在活化剂存在下通过与尿素形成配合物来制造油料脱蜡的冷冻机油的过程中,改进了将热真空瓦斯油添加到分离的尿素络合物中,由此使活化剂闪蒸并再循环 废气中的尿素复合物的浆料用热水处理以破坏加合物并分离出水 - 尿素混合物和油和石蜡。 改进的方法能够精确均匀地控制和抑制尿素的降解。

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