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Production of diesel and base stocks from crude oil

A lubricating oil base oil and crude oil technology, which is applied in the direction of hydrocarbon oil treatment products, hydrocarbon oil treatment, petroleum industry, etc., can solve the problem that the base oil cannot be produced

Pending Publication Date: 2020-01-07
EXXONMOBIL RESEARCHK & ENG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lubricant users are demanding ever-increasing base stock quality, and refiners are finding that the equipment available to them is becoming less capable of producing base stocks that meet these higher quality specifications

Method used

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  • Production of diesel and base stocks from crude oil

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Experimental program
Comparison scheme
Effect test

Embodiment

[0051] A fully waxy crude oil having the properties listed in Table 1 below is provided. The 350°F–(176°C–) fraction of the full waxy crude oil has an octane number of 40, and the 350-650°F (176-343°C) distillate fraction has a cloud point of 25°C.

[0052] APIs 52 wt%H 14.6 wt%200℉+ 85 wt%350℉+ 40 wt%650℉+ 30 wt%1050℉+ 7 % Aromatic Carbon 6.8 ppm S 100 ppm N 134 wt% saturated hydrocarbon 88 wt% aromatics 12 MCRT, wt% 0.25 Ni+V, ppm 1

[0053] Table 1

[0054]The waxy crude was run on a stacked bed of three commercially available nickel molybdenum sulfidation hydroprocessing catalysts at about 1800 psig for about 0.4 hr -1 LHSV and an initial cycle temperature of about 340°C for processing. The yield of 650°F+ (343°C+) product was about 28 wt%. The total liquid product has a sulfur content of -1 Dewaxing was performed at LHSV, about 340°C and 1800 psig. The dewaxed effluent was distilled...

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Abstract

A process of producing Group III base oils, along with a naphtha product and diesel product, from whole waxy crude oil is provided. The inventive process omits the typical vacuum distillation stage and separations to form the typical cuts off of the vacuum tower. By selecting a waxy crude oil suitable for processing without separations, the crude oil may be hydroprocessed, dearomatized, dewaxed, and hydrofinished to produce a Group III base oil. Additionally, the dewaxing catalyst will isomerize the naphtha range molecules to increase the octane value to a suitable level for blending into gasoline and the diesel range molecules to reduce the diesel cloud point.

Description

technical field [0001] Systems and methods for producing diesel and lube base stocks from waxy whole crude oils are provided. Background technique [0002] Crude oil can be distilled and fractionated into many products such as gasoline, kerosene, jet fuel, asphaltenes, and more. A portion of the crude oil forms the base stock of lubricating base oils, especially for lubricating internal combustion engines. Lubricant users are demanding ever-increasing base stock quality, and refiners are finding that the equipment available to them is becoming increasingly unable to produce base stocks meeting these higher quality specifications. New processes are needed to provide refiners with the tools to produce high quality modern base stocks, especially using existing equipment at lower cost and safer operation. [0003] Finished lubricating oils for such things as automobiles, diesel engines, and industrial applications typically consist of lubricating base oils and additives. In g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/04C10G65/08C10G65/12
CPCC10G65/043C10G65/08C10G65/12C10G2400/02C10G67/0418C10G67/0436C10G45/64C10G45/12C10G45/08C10G2400/10C10G69/08C10G7/003C10G2300/1025C10G2300/206C10G2400/04C10G35/095
Inventor 斯蒂芬·H·布朗迈克尔·B·卡洛尔
Owner EXXONMOBIL RESEARCHK & ENG CO
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