Biomass pyrolysis and cracking tube cracking system
A biomass pyrolysis and pyrolysis tube technology, applied in the field of biomass pyrolysis, can solve problems such as high cost, high oxygen content, and difficult industrial application, and achieve saving of construction cost and floor space, uniform temperature distribution, and avoidance of Difficult to exploit effect
Pending Publication Date: 2016-08-10
SHENWU TECH GRP CO LTD
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Problems solved by technology
However, the components of bio-oil obtained by pyrolysis technology are extremely complex, and the disadvantages such as low pH value, high oxygen content, poor thermal stability, and high viscosity make bio-oil difficult to be directly used and stored.
In addition, the post-treatment process of bio-oil is complicated, the effect is not good, and the cost is high, making it difficult for industrial application
Method used
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Embodiment example
[0069] Implementation case: use regenerative moving bed pyrolysis and cracking tube cracking system to process pine wood chips, the basic data of raw materials are shown in Table 1.
[0070] Table 1: Basic data of pine wood chips
[0071]
[0072] Using this reaction system to process pine wood chips, the yield of gas products obtained is 68%, and the pyrolysis tar is almost completely cracked into gaseous products, with a high gas yield.
[0073] In the description of the present invention, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features.
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Abstract
The invention belongs to the technical field of biomass pyrolysis, and mainly discloses a biomass pyrolysis and cracking tube cracking system on the basis of heat accumulating type radiant tube heating. The biomass pyrolysis and cracking tube cracking system comprises a pyrolysis hopper, a first feeding device, a pyrolysis and cracking reactor, a cracking gas cyclone separator, a spraying tower, a fuel gas tank, as well as a heat accumulating type radiant tube, a thermal insulating brick wall, a communicating component and a cracking channel, wherein the pyrolysis and cracking reactor comprises a feeding hole, a pyrolysis chamber, a cracking chamber and cracking gas outlet. The reaction system is simple in structure, convenient to operate, uniform in temperature distribution and good in heating effect; cracking tubes are distributed inside the cracking chamber in a spiral manner, the cracking tubes are distributed around the radiant tube in a zigzag manner, an oil gas generated in the pyrolysis chamber can be deeply cracked in the cracking chamber, macromolecular tar molecules are cracked into small-molecular gas hydrocarbon, a great amount of cracking gas products can be generated by using the reaction system, the problem that pyrolysis oil contains dust is solved, and clean and efficient utilization of fossil fuel is achieved indeed.
Description
technical field [0001] The invention belongs to the technical field of biomass pyrolysis, and mainly relates to a biomass pyrolysis and cracking tube cracking system based on regenerative radiant tube heating, so as to prepare clean combustible gas. Background technique [0002] Biomass energy is the fourth largest resource on earth and the largest renewable energy resource. Biomass has the characteristics of wide distribution, abundant reserves, renewable, low pollution, etc., and is one of the most potential alternative energy sources for fossil energy. At present, the energy utilization of biomass energy is mainly based on fermentation to produce fuel, biogas, gasification, rapid pyrolysis, and carbonization. Among them, the fermentation production of fuel and biogas mainly uses herbaceous plants. The shortcomings of this technology, such as long production cycle and low yield, limit its development; gasification production of gas technology is mostly used in power gener...
Claims
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IPC IPC(8): C10B53/02C10B47/20
CPCC10B47/20C10B53/02Y02E50/10
Inventor 耿层层陈水渺肖磊薛逊吴道洪
Owner SHENWU TECH GRP CO LTD
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