Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydrotreatment process of heavy hydrocarbon raw material

A technology for hydrotreating and raw materials, which is applied in hydrotreating process, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of unfavorable catalyst performance, long-term operation, low demetallization ability, etc., so as to reduce the effect of deactivation and reduce toxicity , the effect of improving the overall performance

Inactive Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the loading of catalysts with various properties, the overall demetallization ability is low, and there is also the problem of matching the catalyst performance of the subsequent downflow reactor, which is not conducive to the performance of the catalyst performance and long-term operation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydrotreatment process of heavy hydrocarbon raw material
  • Hydrotreatment process of heavy hydrocarbon raw material
  • Hydrotreatment process of heavy hydrocarbon raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Preparation of upflow hydrogenation catalyst:

[0082] Take by weighing silicon oxide content and be that the water glass 1111g of 27wt% adds in the beaker, start stirring device, slowly add mass concentration in the beaker and be the nitric acid solution 370g of 65%, the pH value of water glass solution in the beaker after stirring and dissolving is 1.8, then Add 70.3g of nickel nitrate hexahydrate, after dissolving, add 456g of aluminum sol with an Al / Cl ratio of 1.45, an alumina content of 28%, a pore volume of 1.065mL / g, and a specific surface area of ​​300m 2 / g γ-Al 2 o 3 200g, stir well and then add curing agent 50.6g hexamethylenetetramine, add deionized water after the hexamethylenetetramine is completely dissolved, make the material in the beaker a paste with certain fluidity, and use carbon dioxide The solids content based on silicon and alumina is 32%.

[0083] The above paste mass is pressed into two identical hemispheres with spherical cavities. Wherei...

Embodiment 2

[0087] The preparation process is as in Example 1, except that the curing agent hexamethylenetetramine is changed to add 103.5g of urea, and the amount of nickel nitrate hexahydrate is changed to add 99.9g; and the mold is replaced to increase the diameter of the cavity and the cylinder, and the preparation Catalyst Carrier B and Catalyst B C The properties are shown in Table 1. Among them, the outer diameter of the obtained catalyst carrier B is about 7.5 mm, forming the first large channel, the second largest channel, the third largest channel, the fourth largest channel, the fifth largest channel and the sixth largest channel of the "Tian" shaped channel. The length is 5.2mm, the diameter is about 1.5mm, the length of the seventh largest channel is 7.5mm, the length of the eighth largest channel, the ninth largest channel, the tenth largest channel and the eleventh largest channel are all 0.55mm, The diameters of the seventh largest channel, the eighth largest channel, the...

Embodiment 3

[0089] The preparation process is as in Example 1, except that the addition of curing agent hexamethylenetetramine is changed to 90g, the addition of water glass is adjusted to 1315g, and the amount of nitric acid is adjusted to 409.8g. Prepared catalyst carrier C and catalyst C C The properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier C is about 5.5 mm, forming the first, second, third, fourth, fifth, and sixth "Tian"-shaped channels. The length of each is 3.8 mm, the diameter is about 1.1 mm, the length of the seventh largest channel is 5.5 mm, the length of the eighth largest channel, the ninth largest channel, the tenth largest channel and the eleventh largest channel are all 0.4 mm, The diameters of the seventh largest channel, the eighth largest channel, the ninth largest channel, the tenth largest channel and the eleventh largest channel are all 1.3mm. Among them, the eighth, ninth, tenth and eleventh large channels extend inw...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
specific surface areaaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a hydrotreatment process of a heavy hydrocarbon raw material. The hydrotreatment process comprises the following steps: at least one up-flow reactor is connected with at leastone down-flow fixed bed reactor in series, a heavy hydrocarbon raw material is enabled to sequentially pass through the up-flow reactor and the down-flow fixed bed reactor, and effluent of the down-flow fixed bed reactor is separated to obtain products; wherein the up-flow reactor is at least filled with a hydrotreating catalyst provided by the invention, eleven large pore channels are formed in acarrier of the hydrotreating catalyst, and the first to the sixth large pore channels are adopted to a shape similar to or of the Chinese character 'tian'; the seventh large pore channel is intersected with the fifth large pore channel and the sixth large pore channel, and penetrates through the carrier through the sphere center; the eighth to the eleventh large pore channels are designed to extend inwards and intersect with the end-to-end joints of the first to the fourth large pore channels respectively. According to the method, the overall performance of the catalyst can be improved, the catalytic performance synchronization of the up-flow catalyst and the fixed bed catalyst is realized, the catalytic activity is improved, and the operation period is prolonged.

Description

technical field [0001] The invention relates to a hydrogenation treatment process for heavy hydrocarbon raw materials, in particular to a hydrogenation treatment process for heavy oil and residual oil raw materials. Background technique [0002] As crude oil becomes heavier and worse, more and more heavy oil and residual oil need to be processed. The processing of heavy oil and residual oil not only needs to be cracked into products with low boiling points, such as naphtha, middle distillate oil and vacuum gas oil, but also to increase their hydrogen-carbon ratio, which requires decarbonization or Hydrogenation method to achieve. Among them, the decarbonization process includes coking, solvent deasphalting, heavy oil catalytic cracking, etc.; the hydrogenation process includes hydrocracking, hydrofining, hydrotreating, etc. The hydrogenation process can not only hydrogenate and convert residual oil, improve the yield of liquid products, but also remove heteroatoms in it, a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/04B01J8/04
CPCC10G65/04B01J8/0449B01J8/0492C10G2300/1077C10G2300/107C10G2300/205C10G2300/206C10G2300/202C10G2300/4006
Inventor 刘铁斌耿新国李洪广翁延博金建辉
Owner CHINA PETROLEUM & CHEM CORP