Membrane separation method of solid state fermentation ethanol
A technology of solid-state fermentation and solid-state fermentation tank, which is applied in the fields of semi-permeable membrane separation, chemical instruments and methods, separation/purification of hydroxyl compounds, etc., to achieve the effects of high separation efficiency, cost reduction, and energy consumption reduction
Inactive Publication Date: 2011-05-25
TSINGHUA UNIV
View PDF4 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Pervaporation technology has been industrialized in the dehydration of high-concentration ethanol, but it is still in the laboratory research stage in the collection of ethanol from low-concentration ethanol in water
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The invention provides a method for membrane separation of solid-state fermentation of ethanol. The invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] Such as figure 1 As shown, the solid fermenter 1 is connected to the material side of the membrane separation device 2 , and the permeate side of the membrane separation device 2 is connected to the condensation system 3 and the vacuum pump 4 . The membrane separation device 2 adopts a flat-plate alcohol-preferential permeable membrane composed of a support and an active layer that is selective to ethanol deposited on the surface of the support. The material of the support body is polyester; the material of the active layer selective to ethanol is polydimethylsiloxane, and the thickness is 50 μm.
[0026] When separating ethanol, proceed as follows:
[0027] (1) Pass water vapor A not lower than 150°C into the solid-state fermentation tank 1, and he...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a method for separating solid state fermentation ethanol through vapor permeation in the technical field of the production of fuel ethanol. The method comprises the following steps: using a water vapor interlayer to evaporate solid state fermentation ethanol and partial water, and ensuring the obtained ethanol-water gaseous mixture to pass through an alcohol permselective membrane so as to greatly increase the concentration of ethanol. The method uses water vapor to extract ethanol and separate solid material and ethanol in a fermentation tank, thus the obtained mixture only contains ethanol and water and the subsequent separation operation can be performed easily and conveniently. Compared with the other methods for separating the ethanol-water mixture, the method has the advantages of high separation efficiency, less energy consumption, low cost, no pollution, convenient operation, easy amplification method and the like and has industrialization prospect.
Description
technical field [0001] The invention relates to a method for membrane separation of solid-state fermentation ethanol, which belongs to the technical field of fuel ethanol preparation. Background technique [0002] As a sustainable energy source, biomass energy has a large application and development space. At present, biomass energy accounts for about 11% of the energy supply. Especially in recent years, the production of biomass fuel has increased rapidly, and the world has ushered in a golden age for the development of biomass energy. [0003] Biomass fermentation to prepare fuel ethanol technology is a hot topic widely concerned by countries all over the world. Generally, the ethanol produced by fermentation is firstly distilled to increase the ethanol concentration. This process requires high energy consumption, large pollution, high equipment cost, and cannot separate azeotropes. [0004] Pervaporation has gradually become a research hotspot in the world due to its sim...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/08C07C29/80C07C29/76B01D61/00
CPCY02P20/10Y02P20/50
Inventor 李十中唐俏瑜李天成王莉
Owner TSINGHUA UNIV