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

Method for producing biodiesel by waste oil ester biological process

A biodiesel and biological process technology, which is applied in the preparation of biological raw materials, biofuels, and liquid hydrocarbon mixtures, etc., can solve the problems of toxic biocatalysts, high viscosity of the reaction system, and low methanol conversion rate, so as to avoid pollution and reduce Effect of reaction temperature, simplified raw material handling and product recovery process

Inactive Publication Date: 2008-01-30
SHANGHAI ZHONGYOU ENTERPRISE GRP CO LTD
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the reaction speed of the chemical method is fast, there are some shortcomings that cannot be eliminated by itself: such as complex process, high alcohol excess, corresponding alcohol recovery device must be installed in the follow-up process, high energy consumption, waste lye discharge during the production process, etc.
The current biological method has the following limitations: first, methanol has a toxic effect on the biocatalyst; second, the viscosity of the reaction system is too high; third, the conversion rate of methanol is not high

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Mix the pretreated waste oil from the catering industry with methanol (the molar ratio of alcohol to oil is 1:1), and pump it into the first-stage fixed-bed enzyme reactor (diameter-to-height ratio 10×300mm, filled with 5g source) through a constant flow pump. The lipase of Candida antarctica) was transesterified at a flow rate of 6mL / h, and the effluent was allowed to stand for stratification, and the crude glycerin in the lower layer was separated, and the upper layer was mixed with methanol (alcohol to oil molar ratio 1:1) The second-stage fixed-bed enzyme reactor (diameter-to-height ratio 10×300mm, filled with 5g of lipase derived from Candida antarctica) was used for transesterification reaction at a flow rate of 6mL / h. Glycerol, supernatant and methanol (alcohol to oil molar ratio 1:1) were mixed and then entered into the third-stage fixed-bed enzyme reactor (diameter-height ratio 10-300mm, filled with 7g of lipase derived from Candida antarctica) for Transesterif...

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 relates to a method of manufacturing bio-diesel by bio-catalysis grease and inter-esterification. The method of manufacturing bio-diesel by the waste grease biological method is that: pre-processed raw material grease is firstly added into a first stage fixed enzyme reactor, and methyl alcohol is also added into the enzyme reactor, the crude glycerin is separated from the post-reaction effluents and other reactants flow through enzyme reactors of different stages respectively. The operation is repeated. When the reaction finishes, all the reaction end products are separated, and the finished bio-diesel is obtained. 3-4 stages of fixed enzyme reactors are adopted for the continuous inter-esterification process, and the temperature of 25-50 DEG C is required for the whole reaction process. The raw material of the invention is cheap grease, and the waste materials are utilized and the production cost for bio-diesel is decreased.

Description

technical field [0001] The invention relates to the technical field of renewable energy, in particular to a method for producing biodiesel by using biocatalyzed oil transesterification. Background technique [0002] Currently, biodiesel is mainly produced by chemical methods. Although the reaction speed of the chemical method is fast, there are some shortcomings that cannot be eliminated by itself: such as complex process, high alcohol excess, corresponding alcohol recovery device must be installed in the follow-up process, high energy consumption, waste lye discharge during the production process, etc. The production of biodiesel by biological method has the advantages of mild reaction conditions, small amount of alcohol, no pollutant discharge, etc., and can use cheap oil as raw material, thereby reducing production cost. The current biological method has the following limitations: first, methanol has a toxic effect on the biocatalyst; second, the viscosity of the reactio...

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): C10G3/00
CPCY02E50/13Y02E50/10Y02P30/20
Inventor 翁天波
Owner SHANGHAI ZHONGYOU ENTERPRISE 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