Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Reduced bimetallic diesel oil hydrogenation conversion catalyst

A hydroconversion and bimetal technology, which is applied to the catalyst for the hydroconversion of diesel fused-ring aromatic hydrocarbons and the catalyst for the hydroconversion of reduced bimetallic diesel, can solve the problems of limited range and inability to remove aromatics, and simplifies the production process. Effect

Active Publication Date: 2019-07-02
CHINA PETROLEUM & CHEM CORP +1
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is used in many sets of industrial devices in China. The problem is that its ring-opening and chain-breaking is the hydrocracking of an aromatic ring in the fused-ring aromatic hydrocarbons, and the aromatics cannot be removed; it can only increase the cetane number in Conducted within aromatics, limited range

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
  • Reduced bimetallic diesel oil hydrogenation conversion catalyst
  • Reduced bimetallic diesel oil hydrogenation conversion catalyst
  • Reduced bimetallic diesel oil hydrogenation conversion catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Take 40ml of Catalyst C (31.3g) and put it into the reactor of 100ml single-tube hydrogen once-through device, raise the temperature and vacuumize the device, and dry it for 4 hours at a temperature of 250°C and a vacuum degree > 66kPa; Nitrogen with % oxygen breaks the vacuum and heats up to 400°C at a rate of 20°C / h under the conditions of pressure 0.1MPa and tail gas volume 48NL / h. h, under the condition of constant temperature for 4 hours, replace the nitrogen with a mixed gas of 70v% hydrogen and 30v% argon, adjust the pressure to 0.1MPa, the exhaust gas volume to 28NL / h, raise the temperature to 510°C, and perform reduction for 48 hours; at 30°C / hour Cool down to 420°C at a rate of 15°C / h; adjust the pressure to 0.5MPa, circulate gas volume to 48NL / h, inject 320mL of cyclohexane containing 0.3g of quinoline in 4 hours; raise the temperature to 520°C at a rate of 15°C / h for 0.5h, The reduced bimetallic diesel hydroconversion catalyst RC1 was obtained, and its prope...

Embodiment 2

[0053] Except that the consumption of quinoline is changed into 0.6 gram, other operation is the same as embodiment 1. Catalyst RC2 is obtained.

Embodiment 3

[0056] The catalyst of above embodiment is used for diesel oil hydroconversion experiment:

[0057] Presulfurize the catalysts of Examples 1 to 3; keep the temperature at 420°C, adjust the pressure to 0.5MPa, the circulation gas volume to 48NL / h, the amount of sulfurized oil to enter 80mL / h, and inject 320mL of 0.032g of sulfur into the ring in 4 hours. Hexane; cool down to 320°C at a speed of 15°C / h, adjust the pressure to 8.0MPa, the circulation gas volume to 48NL / h, and feed the raw material oil at the rate of 45g / h. 360°C fraction. After running for 300 hours, samples were taken for correlation analysis. The properties of the raw oil used in the test are shown in Table 3, and the test results are shown in Table 4.

[0058] Table 3. Raw oil properties

[0059]

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
crystallinityaaaaaaaaaa
Login to View More

Abstract

A reduced bimetallic diesel oil hydrogenation conversion catalyst is obtained by simultaneously loading non-noble metal hydrogenation components and noble metal hydrogenation components on first modified zeolite, second modified zeolite and alumina as carriers, reducing with low hydrogen partial pressure, and treating with at least one gaseous nitrogen compound selected from pyridine, quinoline, isoquinoline, azaanthracene and azaphenanthrene. As that acid crack component-molecular sieve of the catalyst is implanted into the high-activity reduced bimetallic diesel oil hydrogenation conversioncatalyst, the condensed ring aromatic hydrocarbon in the diesel oil is subjected to hydrogenation and ring opening, the process flow is simplified, the equipment investment can be saved, and the operation cost can be saved. The acid sites of the catalysts are passivated by gaseous nitrogen compounds, which weakens the acid sites of the zeolites, reduces the alkyl cleavage reaction and improves thequality and yield of the target products.

Description

technical field [0001] The invention relates to a reduced-state bimetallic diesel hydrogenation conversion catalyst and a preparation method thereof, in particular to a catalyst for the hydrogenation conversion of diesel oil polycyclic aromatic hydrocarbons, which belongs to the technical field of hydrogenation catalysts. Background technique [0002] The main components of catalytic diesel are condensed ring aromatics, and the cetane number is very low. With the enhancement of people's awareness of environmental protection, environmental protection agencies have also put forward more stringent requirements for diesel oil indicators, limiting the aromatic content and minimum cetane number of diesel oil. Therefore, the market needs low aromatic high cetane diesel production technology. [0003] Chinese patent CN96109877.5 discloses a diesel hydrogenation conversion catalyst, which uses non-precious metals to provide hydrogenation active centers, molecular sieves to provide 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): B01J29/14B01J29/16C10G45/54
CPCB01J29/146B01J29/166B01J2229/18C10G45/54
Inventor 贝耀明柳伟秦波杜艳泽
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com