Process method and device for coupling acetone-butyl alcohol fermentation and separation

A butanol fermentation and coupling device technology, which is applied in the field of acetone-butanol fermentation separation and coupling, can solve the problem of high energy consumption in the separation of fermentation products, and achieve the effects of reducing energy consumption and simplifying the device

Inactive Publication Date: 2012-12-26
ENERGY RES INST OF SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of acetone-butanol fermentation separation coupling process method and device, which overcomes the disadvantage of high energy consumption of fermentation product separation in the existing extraction and fermentation coupling method

Method used

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  • Process method and device for coupling acetone-butyl alcohol fermentation and separation
  • Process method and device for coupling acetone-butyl alcohol fermentation and separation
  • Process method and device for coupling acetone-butyl alcohol fermentation and separation

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Fermentation-extraction-distillation device: the specific operation process is: first carry out acetone-butanol fermentation in a conventional fermenter, and then add the fermented liquid into the fermenter 108 through the feed port 107, or directly feed the fermentation raw materials through the feed port 107 is added into the fermenter 108 to carry out acetone-butanol fermentation; a high-boiling extractant is added to the extraction tower 103 through the feed port 105; the acetone, butanol and ethanol produced by fermentation are extracted into the extractant and migrate upward; Turn on the cold source of the condenser 101, turn on the heater 102 to heat the extractant in the upper part of the extraction tower, the acetone, butanol and ethanol dissolved in the extractant are continuously vaporized, and collected after being condensed by the condenser 101. After fermentation-extraction-distillation, the fermented liquid can be discharged from the discharge port 110; wh...

Embodiment 2

[0035] Fermentation-extraction-distillation unit: attached figure 1 In the shown device, the volume of the fermenter 108 is 0.8 liters, and the diameter of the inner cylinder is 0.08 m; the height of the extraction tower 103 is H t is 0.4 m, and the inner diameter of the tower is 0.08 m; the heater 102 is an electric heating jacket, located on the outer wall of the upper part of the extraction tower 103, and the height of the jacket is H h is 0.05 m, its power is 0.8 kW, and the distance H between its upper edge and the top of the extraction tower p is 0.05 m.

[0036] Fermentation-extraction-distillation process: using the device described in this example, insert the activated bacterial solution into 7% corn mash culture medium with a 5% inoculum size, the total volume is 0.8 liters, and add it through the feed port 107 In the fermentor 108, then add oleic acid in the extraction tower 103 through the feed port 105 as the extractant until the liquid level of the extractant i...

Embodiment 3

[0039] Fermentation-extraction-distillation unit: attached figure 1 In the shown device, the fermentor 108 has a volume of 5 liters, and the diameter of the inner cylinder is 0.15 m; the height of the extraction tower 103 is H t is 1.5 m, and the inner diameter of the tower is 0.15 m; the heater 102 is an electric heating jacket, located on the outer wall of the upper part of the extraction tower 103, and the height of the jacket is H h is 0.25 m, its power is 3 kW, and the distance H between its upper edge and the top of the extraction tower p is 0.3 m.

[0040] Fermentation-extraction-distillation process: insert the activated bacterial liquid into 7% corn mash culture medium according to the inoculation amount of 5%, the total volume is 50 liters, and first culture it at 37°C for 72 hours; adopt this embodiment In the device, 5 liters of fermented liquid are added to the fermenter 108 through the feed port 107, and then through the feed port 105, isostearic acid is added ...

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Abstract

The invention discloses a device for coupling acetone-butyl alcohol fermentation and separation. The device consists of a fermentation tank, an extraction tower, a heater and a condenser, wherein the extraction tower is arranged at the upper part of the fermentation tank and is communicated with the fermentation tank; the heater is arranged at the upper part of the extraction tower; and the condenser is communicated with the top part of the extraction tower. Acetone-butyl alcohol fermentation liquor in a conventional fermentation tank is added into the fermentation tank of the coupling device or is directly used for performing acetone-butyl alcohol fermentation in the fermentation tank of the coupling device; an extracting agent with a high boiling point is filled in the extraction tower; the acetone, the butyl alcohol and the ethanol generated through the fermentation are extracted into the extracting agent, and move upwards under the driving of the concentration difference and density difference between the generated acetone, butyl alcohol and ethanol and the extracting agent; and the heater is used for heating the extracting agent at the inner upper part of the extraction tower so that the acetone, the butyl alcohol and the ethanol dissolved in the extracting agent are distilled out continuously. According to the method provided by the invention, not only can the product inhibition of the acetone-butyl alcohol fermentation be effectively eliminated, the product yield and the raw material utilization ratio of the acetone-butyl alcohol fermentation be improved, but also the production energy consumption and cost can be effectively reduced.

Description

technical field [0001] The invention relates to a process method for acetone-butanol fermentation separation coupling, in particular to a fermentation separation coupling method for coupling fermentation and extraction distillation separation technology. Background technique [0002] Acetone and butanol are important chemical raw materials, industrial solvents and fuels, which can be produced by chemical synthesis and fermentation. The production of acetone and butanol by fermentation is based on starch, pulp waste liquid, molasses and wild plants. Since the whole fermentation process will be severely inhibited by the product, the fermentation liquid after the reaction only contains about 1.8% (mass fraction) The ethanol, acetone and n-butanol (the products are generally called ABE), and the rest are fermented solids and water [Chen Yusheng. Production technology of acetone and butanol by fermentation method [M]. Beijing: Chemical Industry Press, 1991.]. The traditional pur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/00C12P7/16C12P7/28C12P7/06B01D3/40
CPCY02E50/17C12M21/12C12M23/34C12M23/58C12M41/12C12M43/02Y02E50/10
Inventor 金付强胡素琴王波许海朋张杰王建梅杨改蔡飞鹏张晓东
Owner ENERGY RES INST OF SHANDONG ACAD OF SCI
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