A catalyst carrier for hydrogenation modification and a preparing method thereof

A catalyst carrier, hydrogenation and upgrading technology, applied in the direction of catalyst carrier, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of poor acid distribution and calculated density, poor catalyst product selectivity and product quality, etc., to maintain Uniformity, improvement of acid strength and acid density, effect of improving isomerization performance

Active Publication Date: 2015-06-03
CHINA PETROLEUM & CHEM CORP +1
View PDF11 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The modified molecular sieves prepared by these patents have poor acid distribution and calculated

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 catalyst carrier for hydrogenation modification and a preparing method thereof
  • A catalyst carrier for hydrogenation modification and a preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take about 3500g of the original powder of β molecular sieve, its chemical silicon aluminum SiO 2 / Al 2 o 3 The (molar ratio) ratio is 22.68, and the sodium oxide content is 0.18wt%. Put the β molecular sieve into the tube furnace, adopt the temperature program method (the heating rate is 100°C / hour), and start to introduce 100wt% water vapor when the temperature of the tube furnace rises to 300°C. 40L / h passed through the β molecular sieve, heated the tube furnace to 550°C, and the constant temperature time was 8 hours. The obtained molecular sieve is coded as BH-1, and its properties are shown in Table 1.

Embodiment 2

[0045] Get about 3500g of the former powder of β molecular sieve, with embodiment 1. Put the molecular sieve into the tube furnace, adopt the temperature program method (heating rate is 100°C / hour), and start to introduce 100wt% water vapor when the temperature of the tube furnace rises to 300°C, and the water vapor is 70L per kilogram of β molecular sieve / h passes through β molecular sieve, heats the tube furnace to 620°C, and the constant temperature time is 8 hours. The obtained molecular sieve is coded as BH-2, and its properties are shown in Table 1.

Embodiment 3

[0047] Weigh 50g of BH-1 molecular sieve into a closed flask with a reflux device, add 400ml of NaOH aqueous solution with a concentration of 0.04mol / L, the weight ratio of NaOH aqueous solution to BH-1 molecular sieve is 8:1, and keep the temperature at 95°C Stir for 2.0 hours, filter, and wash the filter cake with hot deionized water, and stop washing when the pH value of the washing liquid is close to 7. The filter cake was dried in an oven at 120° C. for 5 hours to obtain the β-type molecular sieve of the present invention, which is numbered BJ-1. The properties of the molecular sieve 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
Login to view more

Abstract

A catalyst carrier for hydrogenation modification and a preparing method thereof are disclosed. The catalyst carrier comprises a beta molecular sieve and aluminum oxide, wherein properties of the beta molecular sieve are as follows: the specific surface area is 400-800 m2/g, the total pore volume is 0.4-0.55 mL/g, the SiO2/Al2O3 mole ratio is 30-60, the relative crystallinity is 120-140%, the infrared acid content is 0.55-1.0 mmol/g, the non-framework aluminum accounts for less than 1% of the total aluminum, the amount of medium-strong acids which is measured by a NH3-TPD method accounts for 70-85% of the total acid amount, and the percent of Na2O is not more than 0.15 wt%. The preparing method includes mixing the beta molecular sieve and the aluminum oxide, kneading and forming to prepare the carrier. The beta molecular sieve which is proper in silicon aluminum ratio, large in specific surface area, proper in acidity, reasonable in pore structure and low in content of non-framework aluminum is adopted as a cracking component of the catalyst carrier. A catalyst prepared from the carrier is particularly suitable for hydrogenation modification processes of diesel oil with low quality, and diesel oil products are high in yield and good in quality.

Description

technical field [0001] The invention relates to a hydrogenation-upgrading catalyst carrier and a preparation method thereof, in particular to a low-quality diesel oil hydrogenation-upgrading catalyst carrier and a preparation method thereof. Background technique [0002] Due to the performance advantages of diesel engines and their widespread use, the demand for diesel has been strong. In addition, in order to protect the ecological environment on which human beings depend, higher requirements are placed on the quality of diesel products. The "World Fuel Specifications" has put forward more stringent requirements on the sulfur and aromatics content, cetane number, density, T95 and other indicators in diesel oil from the Class II standard. [0003] The diesel currently produced mainly includes straight-run diesel and secondary processed diesel. The main ways to produce secondary processed diesel are catalytic cracking, hydrocracking and delayed coking. Due to the improveme...

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): B01J32/00B01J29/06C10G49/08
Inventor 王珂琦刘昶王凤来杜艳泽赵红关明华
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap