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

Method for preparing isopropanol through biological hydrogenation of acetone

A technology for preparing isopropanol and hydrogen, which is applied in the biological field, can solve the problems such as the yield of isopropanol needs to be further improved, and the metabolic flux of butanol is reduced, so as to reduce the metabolic flux of butanol, improve the yield and selectivity, and improve the yield. high rate effect

Pending Publication Date: 2022-07-01
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this method helps to induce the co-production of isopropanol and butanol by C. beijerinckii XH0906, reducing the metabolic flux of butanol and increasing the metabolic flux of isopropanol, the final ratio of the two is close to 4:5-1 :1, the output of isopropanol needs to be further improved

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 isopropanol through biological hydrogenation of acetone

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The preparation method of the soybean meal hydrolyzate comprises: weighing an appropriate amount of soybean meal, adding 5 times the mass of water, and mixing evenly. Add concentrated sulfuric acid with a mass concentration of 98% according to 2% of the volume of water, mix quickly and evenly, and do not cause partial carbonization of the material. Steam was introduced to raise the temperature of the material to 100° C., and the temperature was maintained for 20 hours, during which time the mixture was stirred for 5 minutes every 1 hour. After the hydrolysis, the soybean meal hydrolyzed liquid with red sauce and fruity aroma is obtained.

[0024] In the embodiment of the present invention, the products and by-products in the fermentation broth are analyzed by a liquid chromatograph to calculate the concentration of the main components: a liquid chromatograph (Agilent 1200), the chromatographic column is Biole HPX-87H (300mm×7.8mm) ), the mobile phase is 0.005mol / L H 2...

Embodiment 1

[0027] Nutrient solution ingredients: soybean meal hydrolyzate 10g / L, ammonium sulfate 0.9 g / L, sodium chloride 0.5 g / L, ferric sulfate 0.1 g / L, magnesium sulfate 0.3 g / L, calcium chloride 0.1 g / L, diphosphate Potassium hydrogen 1g / L, disodium hydrogen phosphate 2 g / L, p-aminobenzoic acid 0.04g / L, vitamin B1 0.04 g / L and biotin 0.004g / L, pH 7.0, sterilize at 121°C for 30min, set aside .

[0028] The seed medium is prepared by adding xylose to the nutrient solution, and the solid medium is prepared by adding 1wt% agar to the seed medium. .

[0029] Preparation of Clostridium beijerinckii XH0906 seed solution: including strain activation and seed culture, strain activation is: inoculate Clostridium beijerinckii into solid medium, and cultivate under anaerobic conditions at 28-42°C for 12-48h; Cultivation is as follows: inoculate 10% of the activated bacterial ammonia into the seed medium, and under facultative oxygen conditions, stand at 28-42 °C for 12-48 hours to obtain the ...

Embodiment 2

[0034] Same as Example 1, the difference is that: the nitrogen source adopts peptone and beef extract, each 5g / L. After testing, the butanol concentration in the product was 1.3g / L, and the isopropanol concentration was 27.1g / L.

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 method comprises the following steps: (1) preparing a biocatalyst: preparing a nutrient solution containing a nitrogen source, inorganic salt and vitamins, sterilizing, and adding a clostridium beijerinckii XH0906 seed solution to prepare the biocatalyst; and (2) in the presence of a biocatalyst and carbohydrate carbohydrate, by taking acetone as a substrate, constructing a biocatalysis system and carrying out a biological hydrogenation reaction to prepare isopropanol. According to the method, the isopropanol is prepared through biological hydrogenation by taking acetone as a substrate at normal temperature and normal pressure, hydrogen is not required to be introduced as a reducing agent, and the method has the characteristics of high isopropanol yield, few byproducts, environment friendliness and the like.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for preparing isopropanol by biological hydrogenation of acetone. Background technique [0002] Isopropyl alcohol is an important chemical product and raw material, mainly used in pharmaceuticals, cosmetics, plastics, fragrances, coatings, etc. Isopropanol is produced by chemical methods, including indirect hydration, direct hydration and acetone hydrogenation. The direct hydration method adopts the reaction of propylene and sulfuric acid to first obtain isopropyl hydrogen sulfate, and then the isopropyl hydrogen sulfate is hydrolyzed to obtain isopropanol. In the propylene hydration method, propylene and water are heated and pressurized in the presence of a catalyst to carry out the hydration reaction. The acetone hydrogenation method emerged after 2005, mainly due to the excess of acetone, and the price of acetone and isopropanol were inverted (traditionally,...

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): C12P7/04C12R1/145
CPCC12P7/04
Inventor 张全高慧鹏曹长海王蒙关浩李澜鹏乔凯
Owner CHINA PETROLEUM & CHEM CORP
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