System and method for regulating and controlling properties of biomass pyrolysis product by utilizing magnetic field
A biomass pyrolysis and magnetic field control technology, which is applied in the preparation of liquid hydrocarbon mixtures, indirect heating dry distillation, special form of dry distillation, etc., can solve the problems of difficult separation and purification of biochar and catalyst, high viscosity of pyrolysis oil, etc., and achieve pyrolysis The effect of lowering the temperature, avoiding pollution, and reducing the required cost
Inactive Publication Date: 2018-07-06
TIANJIN UNIV
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Problems solved by technology
[0005] In order to solve the problems existing in the prior art, the present invention provides a system and method for regulating the characteristics of biomass pyrolysis products by using a magnetic field, which overcomes the problems of high viscosity of pyrolysis oil of biomass pyrolysis products and problems after catalytic pyrolysis in the prior art. Difficult separation and purification of biochar and catalyst
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specific Embodiment approach
[0027] Rapeseed was used as biomass raw material, and fixed-bed pyrolysis method was used to conduct the experiment of magnetized pyrolysis of rapeseed into low-viscosity bio-oil. The specific implementation is as follows:
[0028] ——press a cylindrical magnet with a certain magnetic field strength figure 2 Arrangement shown on the bottom of the furnace, dimensions The material is AlNiCo, which has the characteristics of high temperature resistance, and the magnetic field is a constant magnetic field.
[0029] ——Dry the rapeseed with a mass of 300g and spread it evenly around the alnico magnet at the bottom of the furnace, then seal the furnace body with bolts and place it on the fixed bed, and assemble the components of the fixed bed.
[0030] ——Open the condensation and circulation system before the experiment, and the experiment can only be started after the temperature of the heat transfer medium is lower than 0°C;
[0031] ——Before the start of the pyrolysis experime...
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Abstract
The invention discloses a system and a method for regulating and controlling properties of a biomass pyrolysis product by utilizing a magnetic field. The system comprises a furnace body of a pyrolysisfurnace; a movable heat insulation wall is arranged at the periphery of the furnace body of the pyrolysis furnace; an outlet is formed in the top part of the furnace body of the pyrolysis furnace andis communicated with a nitrogen gas bottle and a condenser respectively; the system is characterized in that a permanent magnet with a high-temperature-resisting property is arranged at the bottom ofthe furnace body of the pyrolysis furnace, so that the magnetic field is distributed in the furnace. By adopting the system and the method, disclosed by the invention, the aim of reducing the viscosity of biomass pyrolysis oil is realized by utilizing the magnetic field to replace a catalyst, and biological charcoal is prevented from being polluted by the catalyst, so that the recycling of pyrolysed biological charcoal is realized. The needed pyrolysis temperature is reduced and the cost needed by the catalyst is reduced; the viscosity is reduced from a biological oil source and a post-periodbiological oil quality improvement and viscosity reduction treatment technology is omitted; a viscosity reduction manner is green and economical; the biological oil quality improvement effect can berealized without the need of the catalyst and the viscosity reduction manner is an important means of preparing high-quality biological oil and has important meanings on preparation of biomass liquidfuel.
Description
technical field [0001] The invention belongs to the technical field of high-temperature pyrolysis and liquefaction treatment of biomass, and specifically relates to a system and method for regulating the characteristics of biomass pyrolysis products by using a magnetic field. Background technique [0002] my country has abundant biomass resources. As a clean and renewable energy source, biomass has the potential to replace petroleum on a large scale to produce liquid fuels and chemicals. The development of high-quality products such as biomass-based liquid fuels and chemicals that can replace petroleum-based products will help fundamentally alleviate my country's oil shortage situation, ensure national energy security, and meet my country's major strategic needs. Biomass pyrolysis is the most promising oil energy conversion technology. Bio-oil burns cleanly, has extremely low carbon emissions, and has many advantages such as renewability, biodegradability, non-toxicity, and ...
Claims
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IPC IPC(8): C10B53/00C10B47/02C10B57/00C10G1/00
CPCC10B47/02C10B53/00C10B57/00C10G1/008C10G2300/1011
Inventor 邓娜王启玉张于峰郝瑞森
Owner TIANJIN UNIV