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

Method for preparing biodiesel by hydrodeoxygenation of biolipid

A technology of hydrodeoxygenation and bio-oil, which is applied in the fields of fatty acid hydrogenation, biofuel, petroleum industry, etc., can solve the problems of complex bio-oil to diesel process, easy deactivation of catalyst, economic benefits, and low product yield, and achieve good results. Economic benefits and industrial application prospects, the effect of improving hydroisomerization performance and high catalyst activity

Active Publication Date: 2022-01-28
DALIAN UNIV OF TECH
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method for producing biodiesel by hydrogenation and deoxygenation of bio-oil, which solves the problems of complex biodiesel production process, low product yield, low grade, and catalyst Problems such as easy deactivation and poor economic benefits

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
  • Method for preparing biodiesel by hydrodeoxygenation of biolipid
  • Method for preparing biodiesel by hydrodeoxygenation of biolipid
  • Method for preparing biodiesel by hydrodeoxygenation of biolipid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: be 2% with water content, the palm oil press that metal ion content is 500ppm, total acid value 160mgKOH / g is biological grease raw material, with nickel nitrate and ammonium molybdate as metal precursor, with MF dispersant as Hydrophilic surfactant, Ni-Mo water-soluble hydrodeoxygenation catalyst prepared by hydrothermal method. Under reaction conditions: temperature 320-380°C, pressure 3-5MPa, residence time 0.5-2h, the product is separated into water phase and oil phase after ultrasonic demulsification, and its yield is measured. Table 1 below shows the impact of different reaction conditions on the reaction results.

[0024]

[0025] It can be seen from the table that the addition amount of Ni-Mo water-soluble hydrodeoxygenation catalyst and the reaction pressure have little effect on the effect of hydrodeoxygenation. Raising the reaction temperature is helpful to the hydrodeoxygenation reaction. The higher the temperature is, the higher the temper...

Embodiment 2

[0026] Embodiment 2: be 2% with water content, the palm oil press that metal ion content is 500ppm, total acid value 160mgKOH / g is biological oil raw material, with nickel nitrate and ammonium molybdate as metal precursor, with MF dispersant as Hydrophilic surfactant, Ni-Mo water-soluble hydrodeoxygenation catalyst prepared by hydrothermal method, the catalyst addition amount is 200μg / g oil. Under the reaction conditions: temperature 360°C, pressure 5MPa, residence time 1h, the addition of CO 2 Effect on Hydrodeoxygenation. See Table 2 below for supplemental CO 2 influence on the outcome of the reaction.

[0027]

[0028] It can be seen from the table that when 5% CO is introduced 2 Finally, the decarboxylation reaction is suppressed, the direct hydrodeoxygenation reaction is improved, and the oil yield is increased by 1.5%.

Embodiment 3

[0029] Embodiment 3: add CO with embodiment 2 2 The produced oil phase product is used as a raw material, and a refined catalyst containing 2% ZSM-48 is used as a carrier, in which NiO accounts for 6%, MoO 3 Accounted for 15%, the rest is the carrier. Reaction conditions: temperature 280-340°C, pressure 3-5MPa, space velocity 0.5-2.0h -1 , The hydrogen-to-oil ratio is 200-600:1, and the influence of the reaction on hydrofining is investigated. See the influence of the reaction results in Table 3 below.

[0030]

[0031] It can be seen from the table that high temperature, low space velocity, and large hydrogen-to-oil ratio are beneficial to the occurrence of hydrodeoxygenation and isomerization reactions.

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

No PUM Login to View More

Abstract

The invention belongs to the technical field of environmental protection and energy, and provides a method for preparing biodiesel by hydrodeoxygenation of biolipid. The method comprises the following steps: mixing waste biological oil with a water-soluble hydrodeoxygenation catalyst, carrying out hydrogenation in a slurry bed reactor to remove more than 50% of oxygen in the raw material, carrying out demulsification, sedimentation and water removal, carrying out hydrofining to remove oxygen in the residual raw material, and carrying out a hydroisomerization reaction to reduce the cold filter plugging point of the product. The CO2 concentration is adjusted by using hydrogenation tail gas in the hydrodeoxygenation and hydrofining processes of the slurry reactor, so that the liquid hydrocarbon yield is effectively improved. The method has the advantages of simple process, no need of pretreatment of the raw material biolipid, high catalyst activity and high stability, the obtained diesel oil realizes high cetane number and low cold filter plugging point, and high economic benefits and good industrial application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and energy, and relates to a method for preparing biodiesel by hydrogenation and deoxygenation of bio-oil. Background technique [0002] As a "zero-carbon energy source", biomass energy will play an important role, and the biomass energy industry will also usher in a period of major development opportunities. Clean fuels produced from renewable animal and vegetable oils (such as soybean oil, jatropha oil, palm oil, acidified oil, lard, and food waste oil) are considered to be green, renewable, and carbon-neutral technical routes . At present, biodiesel can be prepared by transesterification of low-carbon alcohols and vegetable oils at home and abroad. However, the consumption of a large amount of low-carbon alcohols in this reaction increases the production cost of biodiesel. Compared with the limitations in the production of biodiesel, renewable diesel, as a higher-grade fuel,...

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): C11C3/12C10L1/02
CPCC11C3/123C10L1/02Y02E50/10Y02P30/20
Inventor 李闯白迪王曙东孟记朋梁长海
Owner DALIAN UNIV OF TECH
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