Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for extracting 1,3-propylene glycol prepared from glycerin serving as biodiesel byproduct by resin adsorption

A technology of resin adsorption and propylene glycol, which is applied in the field of bioengineering, can solve the problems of membrane poisoning, high energy consumption of rectification, modification of coenzyme, etc., and achieve the effect of reducing waste water discharge, simple separation process, and suitable for industrialization

Inactive Publication Date: 2010-12-08
江苏悦达卡特新能源有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rectification method has high energy consumption and high pollution; the membrane separation method has limitations such as membrane "poisoning", low membrane selectivity, and coenzyme modification

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 extracting 1,3-propylene glycol prepared from glycerin serving as biodiesel byproduct by resin adsorption
  • Method for extracting 1,3-propylene glycol prepared from glycerin serving as biodiesel byproduct by resin adsorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Biodiesel preparation and glycerin acquisition: For waste oil, acidified oil and other raw materials, the raw materials are pretreated with solid acid, the molar ratio of alcohol to oil is 6~12, the reaction temperature is about 100°C, and the reaction time is 3~5h. The acid value of raw materials such as oil and acidified oil is reduced to about 1mgKOH / g oil, and the alkali-catalyzed transesterification reaction is carried out. Catalyze the transesterification reaction to produce biodiesel, react for 2~4h, filter out the reaction solution, retain the solid base in the transesterification reactor for the next transesterification reaction, and settle the filtrate, the upper layer is the biodiesel phase, and distill under reduced pressure Evaporate excess methanol to obtain refined biodiesel (fatty acid methyl ester), and the lower layer is crude glycerin.

[0017] (2) Strain: the strain used for fermentation is Klebsiella, which is a facultative anaerobic bacterium, ...

Embodiment 2

[0025] (1) Biodiesel preparation and glycerol acquisition: same as in Example 1.

[0026] (2) bacterial classification is the same as example 1.

[0027] (3) culture medium is the same as example 1.

[0028] (4) Culture method: There are two types of seed culture and fermentation culture. The seed culture is carried out in a 500mL Erlenmeyer flask with a liquid volume of 100mL, a culture temperature of 30°C, a shaker speed of 200r / min, and aerobic culture for 20 hours; fermentation The culture was carried out in an automatic cell culture device with a working volume of 2 L, an actual filling volume of 1 L, an initial concentration of glycerol of 30 g / L, an inoculum size of 10%, a speed control of 200 r / min, and a nitrogen ventilation rate of 1 vvm. 2mol / L sodium hydroxide was used to adjust the pH to 7.0, the temperature was controlled at 37°C, and the fermentation was carried out for 24 hours.

[0029] (5) product separation: with embodiment 1.

[0030] The experimental re...

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 for extracting 1,3-propylene glycol prepared from glycerin serving as a biodiesel byproduct by resin adsorption, which belongs to the technical field of biochemical industry. The 1,3-propylene glycol prepared from the glycerin serving as the biodiesel byproduct is separated by the resin adsorption at normal temperature and normal pressure when the pH is 7.0, and the process for separating and extracting the glycerin and the 1,3-propylene glycol is eliminated, so that production cost is lowered, working time is saved and production efficiency is improved. Therefore, an economic and practical process is provided for co-production industrialization for preparing the 1,3-propylene glycol by producing biodiesel and the glycerin serving as the byproduct from waste animal and plant grease.

Description

technical field [0001] The invention belongs to the technical field of bioengineering, and in particular relates to a biodiesel and 1,3-propanediol coupling production process, and simultaneously uses resin adsorption to separate 1,3-propanediol in time to improve production efficiency. Background technique [0002] In recent years, with the decrease of oil reserves and people's attention to environmental issues, environmental pollution and energy crisis have become two major problems in the world today. The development of new environment-friendly renewable energy has been paid more and more attention by various countries. Many countries in the world are encouraging the development and use of biodiesel, and China is no exception. Biodiesel has incomparable advantages over petrochemical diesel, such as low sulfur content, high oxygen content, no aromatic hydrocarbons, high cetane number, and high flash point; the particulates, fluorocarbons and Compound and carbon monoxide ...

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): C07C31/20C07C29/76C12P7/18C12R1/22
Inventor 景国林吴杰贾琰杨吉
Owner 江苏悦达卡特新能源有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com