Distributed biological fermentation energy supply system

A bio-fermentation and distributed technology, which is applied in bioreactor/fermenter combination, special-purpose bioreactor/fermenter, bio-organic part treatment, etc., to achieve efficient mixing, high-efficiency heat and mass transfer, and gas production rate-enhancing effect

Active Publication Date: 2013-05-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These three methods also require additional energy consumption

Method used

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  • Distributed biological fermentation energy supply system

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Embodiment 1

[0051] A biological fermentation distributed energy supply system, such as figure 1 The system shown includes:

[0052] Biological fermentation device, said biological fermentation device comprises phase biological fermentation pretreatment tank 3 and the primary biological fermentation tank 4 and secondary biological fermentation tank 5 connected thereto, wherein, said primary biological fermentation tank 4 and secondary biological fermentation tank A stirring device 16 is arranged in the pool 5 for stirring the biomass material in the fermentation tank;

[0053] The solar energy collection device 1 is used to collect solar energy, and it is connected to the biological fermentation device through the first heat exchange device 6 to provide heat for the biological fermentation device;

[0054] The power generation device is connected to the bio-fermentation device through pipelines, and is used to burn the biogas from the bio-fermentation device for gas-fired power generation...

Embodiment 2

[0061] A method for distributed energy supply of biomass fermentation by using the above system. like figure 1 , including the following steps:

[0062] a) Put the biomass material into the biological fermentation pretreatment tank 3 to pretreat the biomass, the pretreatment is to break the cell wall at a temperature of 125-175°C, and convert the macromolecules in the biomass into Small molecules that are easily fermentable;

[0063] Use the waste heat of the gas turbine 8 (350-650°C) and the heat collected by the solar energy collection device 1 (150-200°C) as the heat source for pretreatment to provide heat for biomass pretreatment; after pretreatment, the biomass material will generate Solid-liquid phase separation to obtain liquid-phase biomass materials and solid-phase biomass materials, the liquid-phase biomass materials enter the next fermentation system, and the solid-phase biomass materials are directly used as fertilizers, or processed to form dry fertilizers for u...

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Abstract

The invention discloses a distributed biological fermentation energy supply system. The system comprises a biological fermentation device, a solar energy collecting device, a power generation device, a wind power generation device, a first heat exchange device and a second heat exchange device. The invention also provides a method for performing distributed biological fermentation energy supply by employing the system. According to the system, biogas fermentation-gas turbine power generation serves as a link, and the solar heat supply, wind stirring and power generation are taken as auxiliary means, so that a multi-energy complementary distributed energy system is integrated; and therefore, the problem of the single energy utilization limit is broken through, energy utilization coupling is realized, and the utilization efficiency of the energy system is improved.

Description

technical field [0001] The invention relates to the field of biomass fermentation, in particular to a distributed energy supply system for biomass pretreatment intensified biological fermentation. Background technique [0002] In the actual operation of biomass fermentation, there are generally problems such as low anaerobic efficiency and unstable gas production rate. The reasons are as follows: during the fermentation of biomass, a large amount of fermented nutrients are wrapped in the cell wall of the biomass, and the cell wall has a large molecular weight and is difficult to dissolve in water, so it is difficult to be biodegraded, thus becoming the rate-limiting step of biological fermentation Second: anaerobic fermentation mainly includes mesophilic fermentation and high-temperature fermentation. Although the high-temperature fermentation efficiency is significantly higher than that of mesophilic fermentation, the application is limited due to the extra heat demand. In...

Claims

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Application Information

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IPC IPC(8): C12M1/107C12M1/02C05F5/00A23K1/18F24J2/00F02C6/00F02C6/18F03D9/02
CPCY02E50/343Y02E10/40C12M43/08C12M43/00Y02E50/11Y02E10/72C12M47/18Y02E50/12C12M41/18C12M21/04Y02E50/10Y02E50/30Y02P20/129Y02P20/133Y02P20/59Y02W30/40
Inventor 杨晓奕
Owner BEIHANG UNIV
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