Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method of vulcanized hydrocracking catalyst

A hydrocracking and catalyst technology, which is applied in the direction of catalyst activation/preparation, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problem of not being fully vulcanized, affecting catalyst performance, and influencing factors Many problems, to achieve the effect of good application prospects, shortened start-up time, high yield of diesel oil

Pending Publication Date: 2020-10-13
SINOCHEM QUANZHOU PETROCHEM CO LTD +1
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, regardless of the internal presulfurization technology or the external presulfurization technology, the catalyst must go through the process of converting the active metal into an oxidized state and then from an oxidized state to a sulfided state before practical application. The above process is relatively complicated and has many influencing factors.
In addition, due to multiple steps to complete the sulfuration of the catalyst, it is easy to cause the part where the active metal can only form a strong interaction with the catalyst support cannot be fully sulfurized, thus affecting the performance of the catalyst.

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
  • Preparation method of vulcanized hydrocracking catalyst
  • Preparation method of vulcanized hydrocracking catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 200 g of pseudo-boehmite (dry basis, unless otherwise specified, all weights of the following raw materials are dry basis), 170 g of amorphous silica-alumina, and 30 g of USY molecular sieve, and fully mix these three solid powders Finally, 300 mL of pre-prepared dilute nitric acid solution was added to it, kneaded for 15 minutes, extruded through a 3.0 mm orifice plate, dried at 140 °C for 12 h, and then calcined at 560 °C for 4 h in an air atmosphere to obtain the catalyst carrier Z0.

Embodiment 2

[0036] Weigh 5.8g of 3-mercaptopropyltriethoxysilane and add it into 100mL of 95% ethanol solution, stir at room temperature for 20min to fully dissolve it. Then 40 g of the carrier Z0 prepared in Example 1 was added to the above solution, allowed to stand at room temperature for 12 hours, then heated to 70° C., and then reacted for 4 hours. After the reaction, pour out the excess ethanol solution, wash the obtained solid particles with absolute ethanol at room temperature for 3 times, then dry them at 70°C for 1 hour in an air atmosphere, and then put them into a vacuum drying oven at 70°C to fully dry to obtain the surface-modified carrier Z1 .

Embodiment 3

[0038] Weigh 5.6g of 3-aminopropyltriethoxysilane and add it into 100mL of 95% ethanol solution, stir at room temperature for 20min to fully dissolve it. Then, 40 g of the carrier Z0 prepared in Example 1 was added to the above solution, and the reaction vessel was purged with nitrogen and kept under a slight positive pressure in the nitrogen atmosphere. The reaction was left at room temperature for 12 hours, then heated to 60° C., and then reacted for 4 hours. After the reaction, pour out the excess ethanol solution, wash the obtained solid particles with absolute ethanol at room temperature for 3 times, and then pre-dry them at room temperature for 4 hours in an air atmosphere, and then put them into a vacuum drying oven to fully dry at 70 °C to obtain a surface-modified carrier Z2.

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
Densityaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of catalyst materials, and particularly relates to a preparation method of a vulcanized hydrocracking catalyst. The preparation method comprises the stepsof modifying a new functional group on the surface of a traditionally prepared carrier through a chemical bond, dipping in a solution of a VIB group element-containing compound, a VIII group element-containing compound and a sulfur-containing non-metallic compound, and roasting in a vacuum drying inert atmosphere to prepare the vulcanized hydrocracking catalyst. Pre-vulcanization treatment is notrequired to be conducted before use. The hydrocracking catalyst obtained in the invention has high hydrocracking activity and diesel oil selectivity.

Description

technical field [0001] The invention belongs to the technical field of catalyst materials, and in particular relates to a preparation method of a sulfurized hydrocracking catalyst. Background technique [0002] The hydrocracking process is an oil refining process that converts high-boiling feedstocks into low-boiling naphtha and diesel fractions. Compared with catalytic cracking, its raw material adaptability is high, and the yield of diesel fraction is high and the quality is good. As society's demand for clean transportation fuel oil continues to increase, the hydrocracking process has become one of the core processes of modern refineries. The hydrocracking catalyst is the core of the entire hydrocracking process, which usually includes a dual-functional center: one is the acidic center, provided by the carrier, which basically determines the activity of the catalyst. During the development of the hydrocracking catalyst, the acidic component has been used such as Materia...

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
IPC IPC(8): B01J29/16B01J31/34B01J37/02C10G47/20
CPCB01J29/166B01J31/34B01J37/0207C10G47/20C10G2400/04B01J2229/18B01J2229/32
Inventor 范文青刘长坤徐琳肖文灿张黎
Owner SINOCHEM QUANZHOU PETROCHEM CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com