Biomass pyrolysis gas separation and purification system
A biomass pyrolysis and purification system technology, which is applied in the field of biomass pyrolysis gas separation and purification system, can solve the problems of nitrogen energy waste, impure components, insufficient combustion, etc., to avoid the limitation of applicable occasions and avoid environmental pollution , easy to take full advantage of the effect
Inactive Publication Date: 2017-09-22
张晓敏
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Problems solved by technology
Because the gas contains nitrogen and carbon dioxide, the cost is high and nitrogen and carbon dioxide are not combustible, so it is easy to cause problems of insufficient combustion and waste of nitrogen energy. In addition, the combustible gas contains a variety of cost gases, which makes the composition impure. Only suitable for occasions that do not require high combustible gas, such as boilers, etc., not suitable for use in households and other occasions
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[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0028] refer to figure 1 , the biomass pyrolysis gas separation and purification system of the present invention, which includes a cyclone separator 1, a water washing tank 2 and a condenser 3 that are connected to each other in sequence from left to right, and the dust and impurities are separated through the separation of the cyclone separator, and the clean The gas passes through the water washing tank to remove coke and the condenser to remove water vapor, thus ensuring the cleanliness of the pyrolysis gas discharged through the condenser. The present invention includes the lye tank 4 arranged between the washing tank and the condenser, the liquid contained in the lye tank is preferably CaOH 2 Solution (lime water) or NaOH solution helps to absorb a small amount of carbon dioxide gas contained in the pyrolysis gas. Since the liquefacti...
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The invention discloses a biomass pyrolysis gas separation and purification system which comprises a cyclone separator, a washing tank and a condenser which are sequentially communicated with one another from left to right, wherein an alkali solution groove is also arranged between the washing tank and the condenser; a gas outlet of the condenser is sequentially communicated with a methane hydraulic type compression device, a carbon monoxide hydraulic type compression device and a nitrogen hydraulic type compression device respectively; the pressure in the methane hydraulic type compression device is 4.59-8.0MPa; the temperature in the methane hydraulic type compression device is from 82.6 DEG C below zero to 120 DEG C below zero; the bottom of the methane hydraulic type compression device is communicated with a liquid methane collection tank; the pressure in the carbon monoxide hydraulic type compression device is 3.5-5.0MPa; the temperature in the carbon monoxide hydraulic type compression device is from 140.2 DEG C below zero to 150 DEG C below zero; the bottom of the carbon monoxide hydraulic type compression device is communicated with a liquid carbon monoxide collection tank; the pressure in the nitrogen hydraulic type compression device is standard atmospheric pressure; the temperature in the nitrogen hydraulic type compression device is from 195.8 DEG C below zero to 216 DEG C below zero; and the bottom of the nitrogen hydraulic type compression device is communicated with a liquid nitrogen collection tank. The biomass pyrolysis gas separation and purification system can separately extract and recover high-purity single-component gas and nitrogen, and thus being beneficial to increasing the recycling and utilization ratio of energy.
Description
technical field [0001] The invention belongs to the technical field of biomass pyrolysis gas, and in particular relates to a biomass pyrolysis gas separation and purification system. Background technique [0002] Biomass is a form of energy in which solar energy is stored in organisms in the form of chemical energy, directly or indirectly derived from the photosynthesis of plants, and its sources include all plants, animals and microorganisms, as well as organic substances derived, excreted and metabolized from these living substances. waste. The development and utilization of biomass resources is of great significance for protecting the environment, optimizing the energy structure, and alleviating the pressure on fossil energy supply. [0003] A variety of biomass pyrolysis and gasification devices are disclosed in the prior art. The principle is: the biomass raw material is sent into the pyrolysis gasifier from the upper part through the bucket elevator and the screw feed...
Claims
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IPC IPC(8): C10K1/12C10K1/02C10K1/04C10K1/10C10L3/10C01B32/40F25J1/00C07C7/00C07C9/04
CPCC01B2210/0009C07C7/005C10K1/002C10K1/005C10K1/026C10K1/04C10K1/046C10K1/101C10K1/122C10L3/101C10L3/106F25J1/0022C07C9/04
Inventor 张晓敏
Owner 张晓敏