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

Catalyst for hydrodeoxygenation reaction of biodiesel, preparation method and applications thereof

A biodiesel and deoxygenation reaction technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, carbon compound catalyst, liquid hydrocarbon mixture preparation, etc., can solve the problem of low utilization rate and catalytic efficiency, carrier acid center residue, Low economy of H atoms and other problems, to achieve high metal utilization, improve dispersion, and improve product selectivity.

Active Publication Date: 2020-03-27
WANHUA CHEM GRP CO LTD
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the shortcomings of the above-mentioned hydrodeoxygenation catalysts, such as low utilization rate and catalytic efficiency of Pt, residue of carrier acid center, low selectivity, and low economy of biodiesel C and H atoms, a biodiesel hydrodeoxygenation reaction catalyst is provided. Catalyst and preparation method thereof, the acidity of the surface of the catalyst carrier is reduced, the side reaction is less, the catalytic activity is high, and the stability is good

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
  • Catalyst for hydrodeoxygenation reaction of biodiesel, preparation method and applications thereof
  • Catalyst for hydrodeoxygenation reaction of biodiesel, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Catalyst preparation

[0038] (1) Catalyst carrier preparation. Weigh 60.294g Al(NO 3 ) 3 9H 2 O (molecular weight: 375), 0.630g Mn (NO 3 ) 2 (molecular weight: 179) and 2.559g Ba(NO 3 ) 2 (Molecular weight: 261) was dissolved in 150ml of deionized water to form a solution, and stirred for 1h; the solution was heated to 60°C, neutralized with 5wt% sodium carbonate solution, and the pH was controlled to be 9; after filtering and washing with deionized water, use 10mol / L nitric acid solution acidified to pH 6, stirred until it was in the form of a sol, and the carrier slurry was obtained; the slurry was added dropwise to the oily ammonia column, and the sol shrank into a spherical gel, and after aging for 2 hours, the gel pellet was taken out and washed with deionized water , drying at 120°C for 12 hours, and calcining at 500°C for 8 hours to obtain composite oxide carrier pellets;

[0039] (2) Weigh 0.057g SnCl 2 2H 2 O (molecular weight: 226) and 0.120g H 2 ...

Embodiment 2

[0043] The catalyst preparation process is the same as in Example 1.

[0044] Catalyst evaluation: The evaluation conditions were the same as in Example 1, and the evaluation raw material was changed to methyl oleate. The specific conditions are that the reactor adopts a radial reactor, and the reaction temperature of hydrogenation bed I (filled with basic alumina, Shanghai Yuanjiang Chemical, 80-160 mesh) and hydrogenation bed II (filled with catalyst A) is 45°C, The reaction pressure is 4.0MPa, the molar ratio of hydrogen to methyl oleate (18:1) is 0.5, and the liquid hourly space velocity is 4h -1 . The catalyst needs to be reduced with pure hydrogen before the reaction, the reduction temperature is 500°C, and the reduction time is 3h. The catalyst of cracking bed III is ZSM-5 type catalytic material, the process conditions are 600°C and the space velocity is 10h -1 , the reaction pressure is 4.0MPa, and the catalyst-oil ratio is 8. The catalytic effect is shown in Table...

Embodiment 3

[0046] (1) Catalyst carrier preparation. Weigh 57.904g Al(NO 3 ) 3 9H2O (molecular weight: 375), 0.756g Mn(NO 3 ) 2 (Molecular weight: 179) and 3.071g Ba(NO 3 ) 2 (Molecular weight: 261) was dissolved in 150ml of deionized water to form a solution, and stirred for 1h; the solution was heated to 45°C, neutralized with 5wt% sodium carbonate solution, and the pH was controlled to be 9; after filtering and washing with deionized water, use 10mol / L nitric acid solution acidified to pH 6, stirred until it was in the form of a sol, and the carrier slurry was obtained; the slurry was added dropwise to the oily ammonia column, and the sol shrank into a spherical gel, and after aging for 2 hours, the gel pellet was taken out and washed with deionized water , drying at 160°C for 18 hours, and calcining at 550°C for 8 hours to obtain composite oxide carrier pellets;

[0047] (2) Weigh 0.028g SnCl 2 2H 2 O (molecular weight: 226) and 0.060g H 2 PtCl 6 ·6H 2 O (molecular weight:...

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
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a catalyst for a hydrodeoxygenation reaction of biodiesel, a preparation method and applications thereof. According to the catalyst, a MnO-BaO-Al2O3 composite oxide is used asa carrier, a metal Pt is used as an active component, and Sn is used as an auxiliary agent; and a supported catalyst with the active component Pt distributed in an eggshell shape on a carrier is prepared by adopting an impregnation method, and the eggshell-shaped Pt / MnO-BaO-Al2O3 composite catalyst is modified by adopting the auxiliary Sn. According to the invention, the catalyst has good effect in propylene generation through cracking of biodiesel by matching with a radial reactor, the prepared catalyst is high in Pt utilization rate, good in selectivity and high in catalytic efficiency, andhigh-quality biodiesel raw materials containing straight-chain carbon groups can be fully utilized and cracked to achieve high-yield propylene.

Description

technical field [0001] The invention relates to a catalyst for hydrodeoxygenation reaction of biodiesel, its preparation method and application. Background technique [0002] Propylene itself is a common basic chemical raw material, which is widely used in the production of acrylonitrile, propylene oxide, acetone and other chemical fields, but there is still a large gap in the market. The main chemical components of biological oils and fats such as animals and plants are triglycerides formed by higher fatty acids and free higher fatty acids. They mainly contain C, H, and O elements, and are a green and renewable energy source. At the same time, due to the continuous improvement of agricultural production technology, the output of bio-oil has increased rapidly, and the production cost has also dropped sharply thereupon. In recent years, due to the massive consumption of fossil energy and the dwindling reserves, the conversion of renewable bio-oils into fossil crude oil resou...

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): B01J23/656C07C1/20C10G3/00C07C11/06
CPCB01J23/002B01J23/6562C07C1/20C10G3/49C07C2523/656C07C11/06Y02P20/52
Inventor 徐艳飞孔祥明李江蒋锋王兰磊温达芬国欣常林张宏科华卫琦
Owner WANHUA CHEM GRP CO LTD
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