System and method for preparing bio oil, activated carbon and combustible gas through arundo donax Linn. polygeneration
A technology of bio-oil and activated carbon, which is applied in the fields of bio-fuel, petroleum industry, special form of dry distillation, etc. It can solve the problem of inability to realize the parallel production of bio-oil and combustible gas by activated carbon, increase the negative charge on the surface, and the great gap in the adsorption capacity of activated carbon, etc. problems, to achieve the effect of reducing demand, improving adsorption capacity, and reducing system energy consumption
Inactive Publication Date: 2016-10-12
SHENWU TECH GRP CO LTD
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Problems solved by technology
The biochar produced by pyrolyzing biomass has a highly developed pore structure and increased surface negative charge, but it is far behind the adsorption capacity of activated carbon. As activated carbon, it needs further activation
[0006] The existing technology cannot realize the preparation of activated carbon from biomass and the simultaneous production of bio-oil and combustible gas
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[0068] The raw material of reed bamboo in this embodiment comes from Guangxi Guilin Xingtai Company, and the moisture content of the raw material of reed bamboo is 40.3%. The step that the system of Arundis multigeneration bio-oil, gac and combustible gas of the present invention handles Arundis is:
[0069] (1) Raw material preparation: pulverize the raw bamboo bamboo with a water content of 40.3% to 4-5 cm.
[0070] (2) Pretreatment of reed bamboo stalks: put the reed bamboo stalks obtained in step (1) into the reaction solution for soaking and pretreatment, and the reaction solution is NaOH and H 2 o 2 A mixed aqueous solution composed of 1.5% NaOH, H 2 o 2 The mass fraction is 0.5%; the pretreatment parameters are: solid-to-liquid ratio (g / ml) 1:30, and the treatment time is 8 hours, and the pretreated Arundis stalks are washed and dried for later use.
[0071] (3) Reed bamboo pyrolysis: send the reed bamboo straw pretreated in step (2) into the regenerative radiant tu...
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The invention discloses a system and method for preparing bio oil, activated carbon and combustible gas through arundo donax Linn. polygeneration. The system comprises a pretreatment system, a pyrolysis furnace, a waste heat boiler, an air preheater and an oil and water separation system; the pretreatment system comprises a drying device which comprises a feed inlet and a discharge hole, the pyrolysis furnace comprises a feed inlet, an oil gas outlet, a superheated steam inlet and an activated carbon outlet, the waste heat boiler comprises an oil gas inlet, an oil gas outlet and a condensate outlet, the air preheater comprises an oil gas inlet, a combustible gas outlet and a condensate outlet, and the oil and water separation system comprises a condensate inlet and a bio oil outlet. According to the system and method for preparing the bio oil, activated carbon and combustible gas through arundo donax Linn. polygeneration, arundo donax Linn. is subjected to pyrolysis, after pyroysis is completed and heat preservation is conducted, biochar is activated again, and activated carbon is obtained; high-temperature oil gas produced through pyrolysis is recycled through waste heat to produce the bio oil and combustible gas, and energy consumption of the system is greatly reduced.
Description
technical field [0001] The invention belongs to the technical field of agricultural resource utilization, and in particular relates to a system and a method for preparing bio-oil, activated carbon and combustible gas through polygeneration of reed bamboo. Background technique [0002] Biomass is the material that constitutes the body of animals and plants. Plants are mainly composed of starch and cellulose, and animals are mainly composed of fat and protein. They are collectively referred to as biomass. It is estimated that lignin and cellulose, the main components of plant biomass, are continuously regenerated at a rate of about 164 billion tons per year, which is equivalent to 15 to 20 times the current annual oil production in terms of energy. If these resources can be utilized, human beings are equivalent to possessing an inexhaustible treasure house of resources. Moreover, since biomass is derived from photosynthesis, it produces CO after combustion 2 , does not incre...
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IPC IPC(8): C10B53/02C10B57/10C10B57/18
CPCC10B53/02C10B57/10C10B57/18Y02E50/10Y02P20/129
Inventor 王惠惠巴玉鑫吴小飞肖磊张安强房凯吴道洪
Owner SHENWU TECH GRP CO LTD
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