Fixed enzyme membrane reactor, preparation thereof and method for producing biological diesel oil by the same

A technology of membrane reactors and immobilized enzymes, applied in the direction of enzyme production/bioreactors, fixed on/in organic carriers, biological raw materials, etc., can solve the problem of reducing catalytic efficiency, easy inactivation of enzymes, and increasing production costs and other problems, to achieve the effect of improving catalytic efficiency, not easy to desorb, and high specific surface area

Inactive Publication Date: 2008-08-06
ZHEJIANG UNIV
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of lipase to catalyze the synthesis of biodiesel has attracted more and more attention, but the high price of enzyme preparations makes it difficult to recover and reuse free enzymes or immobilized enzymes on microsphere carriers from the reaction system, which increases production costs; in addition, the required The packed bed enzyme column reactor catalyzes the alcoholysis of animal and vegetable fats and oils in a non-aqueous phase system. The inhibitory effect of organic solvents on

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
  • Fixed enzyme membrane reactor, preparation thereof and method for producing biological diesel oil by the same

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] Dissolve acrylonitrile / 2-methacryloyloxy-ethyl-phosphatidylcholine / hydroxyethyl methacrylate terpolymer with a molecular weight of 200,000 in dimethylformamide to prepare a concentration of 4wt.% spinning solution. Under the conditions of a spinning voltage of 7kV, a spinneret solution flow rate of 0.1mL / h, and a receiving distance of 8cm, electrospinning was carried out to prepare an ultrafine fiber composite membrane with a fiber diameter of 1000nm. Polyester non-woven fabric was used as the supporting material. Fill it in the inner and outer double-cylindrical membranes to form a membrane reaction device ③, as shown in the accompanying drawings, the inner cylinder of the membrane device is called the inner side of the membrane device membrane ④, and the cavity between the inner and outer cylinder peripheral surfaces is It is called the outer side of the membrane device membrane ⑤. Three membrane devices were connected in series to form one-, two-...

Example Embodiment

[0030] Example 2

[0031] Dissolve acrylonitrile / 2-methacryloyloxy-ethyl-phosphatidylcholine / hydroxyethyl methacrylate terpolymer with a molecular weight of 150,000 in dimethylformamide to prepare a concentration of 5wt.% spinning solution. Under the conditions of a spinning voltage of 8kV, a spinneret solution flow rate of 1mL / h, and a receiving distance of 10cm, electrospinning was performed to prepare an ultrafine fiber composite membrane with a fiber diameter of 500nm. Polyester non-woven fabric was used as the supporting material. It is filled in a roll-type membrane tool, and a plurality of membrane tools are connected in series to form one, two, and three-stage membrane reactors. By means of cross-flow filtration, the epichlorohydrin was first circulated in the membrane reactor device at 27 °C for 1.5 hours, and then the lipase solution with a concentration of 8 g / L was circulated in the membrane reactor device at 27 °C. 1.5 hours; during the cycle, both epichlorohydr...

Example Embodiment

[0032] Example 3

[0033] Dissolve acrylonitrile / 2-methacryloyloxy-ethyl-phosphatidylcholine / hydroxyethyl methacrylate terpolymer with a molecular weight of 100,000 in dimethylformamide to prepare a concentration of 4wt.% spinning solution. Under the conditions of spinning voltage of 10 kV, flow rate of spinneret solution of 2 mL / h, and receiving distance of 25 cm, electrospinning was carried out to prepare ultra-fine fiber composite membrane with fiber diameter of 200 nm. Polyester non-woven fabric was used as supporting material. It is filled in a roll-type membrane tool, and a plurality of membrane tools are connected in series to form one-, two-, and three-stage enzyme membrane reactors. By means of cross-flow filtration, the epichlorohydrin was first circulated in the membrane reactor device at 25 °C for 2 hours, and then the lipase solution with a concentration of 10 g / L was circulated in the membrane reactor device at 25 °C. 2 hours; during the cycle, both epichlorohy...

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 an immobilized enzyme membrane reactor and the preparation thereof and a method for producing bio-diesel. The method comprises filling superfine fiber complex film in a die whose inside and outside are double cylindrical shape to form a film reactor, injecting activating agent solution and lipase solution in the film reactor in turn through adopting a cross-flow filtration mode, leading lipase to be chemically fixed on superfine fiber membrane surface, getting an enzyme membrane reactor which is fixed with lipase, respectively injecting mixed solution of animal and vegetable oil and carbinol in the inner side and the outer side of the superfine fiber complex film, doing catalytic alcoholysis reaction on fiber membrane surface, and producing bio-diesel. The enzyme gathering catalysis of the method of the invention is integral with a membrane separation process, and the method of the invention simplifies manufacturing technique, and meanwhile, the method of the invention overcomes inhabitation of lower alcohol to enzymatic activity in the process of catalyzing, the immobilized enzyme membrane reactor can be repeatedly used, which can achieve continuous production, improves production efficiency, and has excellent industrial application prospect.

Description

technical field [0001] The invention belongs to an immobilized enzyme membrane reactor and its preparation and application technology, in particular to a method for producing biodiesel with an immobilized enzyme membrane reactor. Background technique [0002] With the increasing depletion of petroleum resources and the enhancement of public awareness of environmental protection, biodiesel, a renewable green and environmentally friendly fuel, has attracted widespread attention from all over the world. Biodiesel is an energy source obtained from renewable biomass resources that is similar in nature to petroleum diesel. Its main components are esters such as methyl or ethyl esters formed from long-chain fatty acids. Compared with petroleum diesel, biodiesel has similar combustion performance, and biodiesel is far less corrosive to engines than petroleum diesel; biodiesel does not contain aromatic hydrocarbons and has extremely low sulfur content, which can greatly reduce pollut...

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): C12M1/40C12N11/02C10G3/00
CPCY02P30/20
Inventor 徐志康黄小军余安国
Owner ZHEJIANG UNIV
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