Hydroisomerization catalyst, preparation method thereof, and method for producing lubricating base oil from hydrocarbon oil or Fischer-Tropsch synthetic oil

A technology of lubricating base oil and hydroisomerization, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., to reduce the amount of strong acid, improve selectivity, Evenly dispersed effect

Active Publication Date: 2019-05-03
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of how to use Fischer-Tropsch synthetic oil as a source of raw material to produce lubricating oil base oil with a low pour point from heavy distillate oil with a distillation range above 370°C with a high product yield, and provide Hydroisomerization catalyst and preparation method thereof and method for producing lubricating oil base oil from hydrocarbon oil or Fischer-Tropsch synthetic oil

Method used

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  • Hydroisomerization catalyst, preparation method thereof, and method for producing lubricating base oil from hydrocarbon oil or Fischer-Tropsch synthetic oil
  • Hydroisomerization catalyst, preparation method thereof, and method for producing lubricating base oil from hydrocarbon oil or Fischer-Tropsch synthetic oil
  • Hydroisomerization catalyst, preparation method thereof, and method for producing lubricating base oil from hydrocarbon oil or Fischer-Tropsch synthetic oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] This example is used to illustrate the method for preparing a hydroisomerization catalyst provided by the present invention.

[0055] (1) the amorphous silicon aluminum of 86g (SIRAL company, ASA, specific surface area 500m 2 / g, pore volume 1.6ml / g, SiO 2 Content 40% by weight) and 74g of pseudo-boehmite (SB, uncalcined, specific surface area 233m 2 / g, pore volume 0.52ml / g) mix homogeneously, in the state of stirring, add by the nitric acid (concentration is 65% by weight, Beijing Reagent Company, chemically pure) of 2.0g, the sodium nitrate of 4.825g (Beijing Reagent Company, chemical pure) and 224g of water, and then kneaded in a mixer to form a ball, then put it into an extruder to extrude a cylindrical shape (maximum diameter is 2mm), and dried at 120°C for 4h, and roasted at 500°C for 4h, obtaining vector precursors;

[0056] (2) Put the carrier precursor into the hydrothermal device and feed air and water at 500 ° C. The feed rate of water vapor is 20% by volum...

Embodiment 2

[0062] This example is used to illustrate the method for preparing a hydroisomerization catalyst provided by the present invention.

[0063] (1) 60g of amorphous silicon aluminum (SIRAL company, ASA, specific surface area 500m 2 / g, pore volume 1.6ml / g, SiO 2 Content 40% by weight) and 40g of pseudo-boehmite (SB, unroasted, specific surface area 233m 2 / g, pore volume 0.52ml / g) mix homogeneously, add the sodium nitrate (Beijing Reagent Company, Chemically pure) and 180g of water, then kneaded into a ball in a mixer, then put it into an extruder to extrude a cylindrical shape (maximum diameter is 2mm), and dried at 100°C for 6h, and roasted at 550°C for 2h , to obtain the carrier precursor;

[0064] (2) Put the carrier precursor into the hydrothermal device and feed air and water at 600°C, the feed rate of water vapor is 10% by volume of the hydrothermal device, wherein the air flow rate is 3L / min and the water flow rate is 0.25ml / min, the carrier precursor was subjected to...

Embodiment 3

[0070] This example is used to illustrate the method for preparing a hydroisomerization catalyst provided by the present invention.

[0071] (1) 50g of amorphous silicon aluminum (SIRAL company, ASA, specific surface area 500m 2 / g, pore volume 1.6ml / g, SiO 2 Content 40% by weight) and 50g of pseudo-boehmite (SB, uncalcined, specific surface area 233m 2 / g, pore volume 0.52ml / g) mix homogeneously, add under the state of stirring by the nitric acid (concentration is 65% by weight), Beijing Reagent Company, chemically pure) of 1.54g, the sodium nitrate of 3.7g (Beijing Reagent Company, chemical pure) and 120g of water, and then kneaded into a ball in a mixer, then put it into an extruder to extrude a cylindrical shape (maximum diameter is 2mm), and dried at 110°C for 4h, and roasted at 450°C for 6h, obtaining vector precursors;

[0072] (2) Put the carrier precursor into the hydrothermal device and feed air and water at 400°C, the feed rate of water vapor is 15% by volume of ...

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Abstract

The invention discloses a hydroisomerization catalyst and a preparation method thereof, and a method for producing base oil of lubricating oil from hydrocarbon oil or Fischer-Tropsch synthesis oil. The preparation method for the hydroisomerization catalyst comprises the following steps: (1) mixing amorphous silicon-aluminum, an alumina adhesive, nitric acid, an auxiliary agent and water so as to obtain a mixture and subjecting the mixture to mixing and kneading, extrusion molding, primary drying and secondary roasting so as to obtain a carrier precursor; (2) subjecting the carrier precursor to carrier modification in the presence of water vapor so as to obtain a modified carrier; (3) introducing a material containing an active component precursor to the modified carrier and carrying out secondary drying and secondary roasting so as to obtain a catalyst precursor; and (4) reducing the catalyst precursor in a hydrogen-containing atmosphere so as to obtain the hydroisomerization catalyst. The auxiliary agent used in the invention is nitrate and / or carbonate of alkali metals and / or alkaline earth metals. According to the invention, high yield of the isomerization product is realized; and the pour point of the product base oil of lubricating oil is reduced.

Description

technical field [0001] The present invention relates to a method for preparing a hydroisomerization catalyst. The hydroisomerization catalyst prepared by the method is used to carry out hydrocarbon oil (Fischer-Tropsch synthetic oil with a distillation range above 370°C) in the presence of the hydroisomerization catalyst. A method for producing lubricating oil base oil by hydroisomerization of heavy distillate oil, and a method for producing lubricating oil base oil from Fischer-Tropsch synthetic oil. Background technique [0002] Fischer-Tropsch synthetic oil has a very high content of saturated hydrocarbons, generally contains more than 90% by weight of normal isoparaffins, basically does not contain aromatics, sulfur and nitrogen, and has a very high viscosity index. Compared with lubricating oil base oil produced by using conventional raw materials, such as crude oil fractions, the viscosity index of Fischer-Tropsch synthetic oil is much higher, especially the heavy dist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/42C10M101/02
Inventor 马辉王理金环年赵效洪李景李丽艾军高浩华
Owner CHNA ENERGY INVESTMENT CORP LTD
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