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Solar-assisted volatile fermentation products production processes

A fermentation product and production process technology, applied in the field of solar-assisted volatile fermentation product production process, can solve the problem of high cost

Inactive Publication Date: 2014-02-12
SCALE BIOFUEL APS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of processing these distillers grains after the fermentation process is very high

Method used

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  • Solar-assisted volatile fermentation products production processes
  • Solar-assisted volatile fermentation products production processes
  • Solar-assisted volatile fermentation products production processes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0067] Materials and methods

[0068] Fermentation medium (simulation): for embodiment 1~4, its fermentation medium is as follows: in ethanol solution experiment, the denatured ethanol ( Aalborg, Denmark) was diluted to 20L so that the final concentration of ethanol was approximately 12% v / v. In the n-butanol or sec-butanol solution experiment, dilute 400ml of n-butanol or sec-butanol (BDH Prolabo, GPR Rectapur, VWR Bie & Berntsen, Denmark) fermentation medium to 20L with tap water, so that n-butanol Or the final concentration of sec-butanol is about 2% v / v. For embodiment 5, its fermentation medium is as follows: use the denatured ethanol of 4L93%v / v ( Aalborg, Denmark) was diluted to 20L so that the final concentration of ethanol was approximately 19% v / v.

Embodiment 5

[0068] Fermentation medium (simulation): for embodiment 1~4, its fermentation medium is as follows: in ethanol solution experiment, the denatured ethanol ( Aalborg, Denmark) was diluted to 20L so that the final concentration of ethanol was approximately 12% v / v. In the n-butanol or sec-butanol solution experiment, dilute 400ml of n-butanol or sec-butanol (BDH Prolabo, GPR Rectapur, VWR Bie & Berntsen, Denmark) fermentation medium to 20L with tap water, so that n-butanol Or the final concentration of sec-butanol is about 2% v / v. For embodiment 5, its fermentation medium is as follows: use the denatured ethanol of 4L93%v / v ( Aalborg, Denmark) was diluted to 20L so that the final concentration of ethanol was approximately 19% v / v.

[0069] In all experiments, the depth of the fermentation medium in the fermentation chamber was approximately 20 cm. The dimensions of the fermentation chamber were 40 cm in height, 40 cm in length and 32 cm in width. The four sides and the bott...

Embodiment 1

[0079] Example 1: Day / night ethanol simulation without PHE+E

[0080] A 12% v / v ethanol solution was used to simulate the ethanol fermentation medium in the above-mentioned fermentation chamber. White spotlights were on for 10 hours and off for 14 hours to simulate the natural day / night cycle. During the 10-hour period with light, CO 2 The outer surface of the fermentation medium exposed per square meter is about 15m 3 The / hour rate cycles through the headspace and condensing unit. The area of ​​the exposed outer surface of the fermentation medium is 0.128m 2 . Within two days, regularly record the temperature of the fermentation medium, the head space, the cooling water of the tubular condensing unit, and the air discharged from the tubular condensing unit, and the data results are as follows: figure 2 shown. Each time the ethanol condensate was measured, it was returned to the fermentation chamber again. Therefore, the fermentation medium contained a relatively cons...

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Abstract

The present invention provides a method and apparatus for recapturing heat from a solar-assisted volatile fermentation product production process comprising harvesting a volatile fermentation product from a solar-assisted fermentation product production apparatus and utilizing a heat recovery apparatus for recapturing the heat produced during the solar-assisted fermentation product production process. The volatile fermentation product can be produced in an autotrophic organism or by a fermenting organism fermenting fermentable sugars from one or more sugar crops, starch-containing and lignocellulose-containing materials.

Description

technical field [0001] The present invention relates to processes for the production, processing and / or recovery of solar-assisted volatile fermentation products and by-products thereof, and methods for improving the economics of the process. Background technique [0002] The increase in the cost of fossil fuels and the global increase in fuel demand has driven a shift in the market to the development and utilization of alternative energy sources to meet energy needs such as transportation, heating and power generation. Currently, the most common biofuel used in the transportation industry is fuel ethanol. The main feedstocks currently used to produce fuel ethanol are corn (USA) and sugar cane (Brazil), but the preferred feedstock in the future may be biomass cellulose. Regardless of the fermentable sugars used to make ethanol, the capital expenditure (CAPEX) for manufacturing a commercial facility producing 500,000 to 1,000,000 gallons of ethanol per year is estimated to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J1/00C12M1/00F24V30/00
CPCY02E50/17C12M41/12C12M43/00C12P7/16C12P7/06F24J3/00C12M21/12F24V99/00Y02E50/10Y02P20/59
Inventor 丹·尼尔森
Owner SCALE BIOFUEL APS
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