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Biogas purification membrane bioreactor and use method thereof

A technology of membrane bioreactors and reactors, applied in chemical instruments and methods, separation methods, gas fuels, etc., can solve the problems of high demand for energy and equipment investment, pollution of the environment, etc., and achieve improved gas utilization and simple workflow , Avoid the effect of equipment investment and energy consumption

Active Publication Date: 2019-10-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high energy and equipment input requirements and environmental pollution in the existing biogas purification process, and provide a biogas purification membrane bioreactor and its use method

Method used

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  • Biogas purification membrane bioreactor and use method thereof

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specific Embodiment approach 1

[0023] Embodiment 1: This embodiment is a biogas purification membrane bioreactor, which includes a water inlet device, a hydrogen gas supply device, a biogas gas supply device, a reactor, a circulation device and a gas outlet liquid seal device;

[0024] The reactor includes a reactor main body 3 and a hollow fiber membrane module, the hollow fiber membrane module is composed of a hollow fiber membrane tow 4, a membrane module head 5 and a membrane module fixing member 7, and the membrane module head 5 is arranged in a hollow At both ends of the fiber membrane tow 4, the hollow fiber membrane tow 4 is fixed in the reactor main body 3 by using the membrane module fixing member 7 and the membrane module head 5, and the reactor water inlet 8 is set at the bottom of the reactor main body 3 , the reactor water outlet 6 is set on the upper part of the reactor main body 3;

[0025] The water inlet device is composed of a water inlet pump 9, a water inlet tank 10 and a water inlet ai...

specific Embodiment approach 2

[0030] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the reactor water inlet 8 and the reactor water outlet 6 are arranged on both sides of the hollow fiber membrane module. Others are the same as the first embodiment.

specific Embodiment approach 3

[0031] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the biogas purification membrane bioreactor also includes a magnetic stirrer 24 on which the reflux device 13 is arranged. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention provides a biogas purification membrane bioreactor and a use method thereof, relates to a biogas purification reactor and a use method thereof, and aims at solving the problems that in an existing biogas purification process, the investment demand of energy and equipment is high, and environmental pollution exists. The biogas purification membrane bioreactor includes a water inlet device, a hydrogen supply device, a biogas supply gas, a reactor body, a circulation device and a gas outlet liquid-sealing device. The use method includes the steps of 1, a starting stage, wherein a biogas purification biology medium is injected into the reactor body until the liquid level of the biogas purification biology medium reaches the water outlet of a reflux device, nitrogen is introduced,sealing is conducted, and a biogas purification seed solution is inoculated, a hydrogen pressure reducing valve, a biogas pressure reducing valve and a circulation pump are turned on to conduct biogas purification; 2, a continuous operation stage, wherein every 12h of operation, the hydrogen pressure reducing valve, the biogas pressure reducing valve and the circulation pump are closed once, anda water inlet pump is opened once. The biogas purification membrane bioreactor and the use method thereof have the advantages that the purity of biogas is 93% or above, and the yield of ethanol is 1.5g / L d.

Description

technical field [0001] The invention relates to a biogas purification reactor and a using method thereof. Background technique [0002] With the continuous growth of the world's population and the development of industrialization, the demand for energy continues to expand, resulting in the decline of global fossil fuel reserves. At the same time, the burning of fossil fuels releases a large amount of greenhouse gases, which makes human beings face a double crisis of energy and the environment. Promoting the reform of energy production structure and utilization mode and promoting the diversified and clean development of energy is the top priority for my country to achieve sustainable development. As a clean gas energy, bio-natural gas has great application prospects in supplementing my country's energy shortage due to its characteristics of recycling, environmental protection, availability of by-products, low cost, mature technology and easy promotion. [0003] Bio-natural g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10B01D53/84B01D53/62
CPCB01D53/62B01D53/84C10L3/104Y02E50/30Y02A50/20
Inventor 赵磊王子寒任南琪陈川
Owner HARBIN INST OF TECH