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

A hydrogenation protection catalyst and its preparation method and application

A hydrogenation protection and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of catalyst activity decline and deactivation

Active Publication Date: 2017-03-01
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As the quality of crude oil deteriorates, the content of impurities such as colloids, asphaltenes, and organometallic compounds in crude oil increases. The presence of these impurities can easily cause a rapid decline in catalyst activity and even deactivation

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
  • A hydrogenation protection catalyst and its preparation method and application
  • A hydrogenation protection catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh 200g of hydrated alumina (commercially purchased from Yantai Henghui Chemical Co., Ltd., 72% by weight on a dry basis. The pore volume is 0.50 ml / g, and the specific surface area is 290 m 2 / gram, the diameter of the most probable pores is 7nm), 70 grams of α-alumina powder (formed by roasting the hydrated alumina used in this example at 1400 ° C for 6 hours), 9 grams of scallop powder, and then adding water 230 ml, mixed evenly, kneaded in a twin-screw extruder and extruded with a cylindrical orifice plate of φ2.0mm, after that, the wet strip was dried at 120°C for 4 hours and then roasted at 850°C for 2 hours to obtain the carrier T of the present invention -1. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-1 were measured, and the results are shown in Table 1.

Embodiment 2

[0056] Weigh 180g dry rubber powder (commercially purchased from Zibo Qimao Catalyst Factory, the dry basis is 68% by weight. The pore volume is 0.55 ml / g, and the specific surface area is 278 m 2 / gram, the most possible pore diameter is 8nm), 120 grams of α-alumina powder (commercially purchased from Beijing Shunchuan Environmental Protection Technology Co., Ltd.), mixed with 9 grams of asparagus powder, and then added 205 milliliters of aqueous solution containing 11.0 grams of potassium nitrate After mixing evenly, knead in a twin-screw extruder and extrude with a φ2.0mm cylindrical orifice. Afterwards, the wet strip is dried at 120°C for 4 hours and then roasted at 850°C for 2 hours to obtain the carrier T-2 of the present invention. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-2 were measured, and the results are shown in Table 1.

Embodiment 3

[0058] Weigh 150g of dry rubber powder (commercially purchased from Yantai Henghui Chemical Co., Ltd., the dry basis is 72% by weight. The pore volume is 0.50 ml / g, and the specific surface area is 255 m 2 / gram, the diameter of the most possible pores is 9nm), 150 grams of α-alumina powder (same as Example 2), 9 grams of fennel powder, 9 grams of methylcellulose and 7.0 grams of calcium carbonate (Sinopharm Chemical Reagent Co., Ltd. company) and mix, then add 200ml of water, mix evenly and then form according to the rolling ball molding method to obtain spherical particles with a particle size of 5.5-6.5mm. The wet strip was dried at 120°C for 4 hours and then calcined at 800°C for 2 hours to obtain carrier T-3 of the present invention. The specific surface, probable pore diameter, pore volume, and pore distribution of carrier T-3 were measured, and the results are shown in Table 1.

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a hydrogenation protection catalyst, and its preparation method and application. The catalyst contains a carrier and a hydrogenation active metal component supported on the carrier, the carrier is an alumina product with a bimodal porous structure, a result of characterization through a mercury intrusion technology shows that the pore volume of the product is 0.3-0.8ml / g, the specific surface area is 70-220m<2> / g, the pore volume of pores with the diameter of 6-10nm accounts for 8-25% of the total pore volume and the pore volume of pores with the diameter of 85-160nm accounts for 40-75% of the total pore volume, the hydrogenation active metal component is selected from at least one VIII family metal component and at least one VB family metal component, the content of the VIII family metal component by its oxide in the catalyst is greater than 0, and is not greater than 0.8wt%, and the content of the VB family metal component by its oxide is greater than 0, and is not greater than 5wt%. The hydrogenation protection catalyst provided by the invention has better metal protection performance than hydrogenation protection catalysts in the prior art.

Description

technical field [0001] The invention relates to a hydrogenation protection catalyst and its preparation method and application. Background technique [0002] As the quality of crude oil deteriorates, the content of impurities such as colloids, asphaltenes, and organometallic compounds in crude oil increases. The presence of these impurities can easily cause a rapid decline in catalyst activity and even deactivation. An effective way to solve this problem is to fill the upper part of the hydrogenation catalyst bed with a protective agent with hydrogenation activity. The hydrogenation protection catalyst with larger pore volume and pore diameter has strong metal and carbon capacity, which can protect the downstream hydrogenation main agent and prolong the service life of the main agent. [0003] Examples of hydrogenation protection catalysts and their preparation in the prior art are as follows: [0004] CN200610113493.5 discloses a hydrogenation protecting agent and its pre...

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 Patents(China)
IPC IPC(8): B01J23/847B01J35/10C10G45/06
Inventor 刘佳杨清河孙淑玲胡大为曾双亲王奎戴立顺聂红
Owner CHINA PETROLEUM & CHEM CORP