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Miniature movable type agricultural and forest biomass fast pyrolysis device

A thermal cracking and mobile technology, which is applied in the direction of biofuel, special dry distillation, liquid hydrocarbon mixture preparation, etc., can solve the problems affecting work performance, it is difficult to apply rapid thermal cracking of agricultural and forestry biomass raw materials, etc., and achieve the improvement of bio-oil Yield effect

Inactive Publication Date: 2012-08-15
BEIJING FORESTRY UNIVERSITY
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  • Application Information

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Problems solved by technology

Due to the wide variety of agricultural and forestry biomass resources with different properties, it is difficult for the same reactor to meet the three basic conditions of rapid pyrolysis by adjusting the process parameters for raw materials of different properties, and a large change in process parameters will also It affects the working performance of other parts of the whole device, so the same set of rapid pyrolysis device is difficult to apply to the rapid pyrolysis of various agricultural and forestry biomass raw materials with different properties

Method used

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  • Miniature movable type agricultural and forest biomass fast pyrolysis device
  • Miniature movable type agricultural and forest biomass fast pyrolysis device
  • Miniature movable type agricultural and forest biomass fast pyrolysis device

Examples

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Effect test

Embodiment

[0033] Using larch wood as raw material, a small mobile agricultural and forestry biomass rapid pyrolysis device with a processing capacity of 30Kg / h is used for rapid pyrolysis production:

[0034] The device structure consists of feeder (21), fast pyrolysis reactor (22), gas-solid separator (23), gas condenser (11), non-condensable gas purification device (24), blower fan (16), gas A buffer tank (17), a gas preheater (19), a combustion furnace (18) and a traveling mechanism (25) consist of a fast pyrolysis reactor (22) with an inner diameter of 0.16m and a total height of 1.6m. The reaction section (7) of (22) is made up of two section reaction tubes of 0.4m and 0.6m respectively by height, and reactor top cover (8) gas outlet diameter is 32mm, and the inverted conical gas flow stabilizer (32) that is set inside The cone bottom diameter is 40mm, the cone angle is 90°, the distance from the cone bottom plane to the gas outlet is 0.32m, the spray hole diameter on the air distr...

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Abstract

The invention discloses a miniature movable type agricultural and forest biomass fast pyrolysis device. The device comprises a traveling mechanism (25), a combustion furnace (18), a feeder (21), a fast pyrolysis reactor (22), a gas solid separator (23), a gas condenser (11), a non-condensable gas purifier (24), a fan (16), a gas buffer tank (17) and a gas preheater (19); the height of the fast pyrolysis reactor (22) can be adjusted, the device can be suitable for various agricultural and forest biomass raw materials, and the fluidization quality in the reactor is better due to the arrangementof an inverted-cone-shaped gas flow stabilizer in a top cover of the reactor; the non-condensable gas is taken as gas sources of spouting gas and fluidized gas and heat supply fuel, the entire deviceis simple in structure, small in volume and stable in running, can be hauled to the agricultural and forest biomass for production intensively and has lower production cost; the small-scale movable type operating mode also avoids the problem that the industrial enlargement of a fluid bed reactor is not easy; and the industrial production of agricultural and forest biomass fast pyrolysis is realized in a disguised form.

Description

technical field [0001] The invention relates to a small mobile rapid pyrolysis device for agricultural and forestry biomass, which belongs to the field of utilization of agricultural and forestry biomass, especially the field of energy utilization. Background technique [0002] Rapid pyrolysis of agricultural and forestry biomass refers to the high-temperature pyrolysis of agricultural and forestry biomass into gas and solid charcoal under the condition of anoxic conditions, and then rapidly cooling the pyrolysis gas from which solid charcoal has been removed to obtain bio-oil and non-condensable gas. The main product is bio-oil, and the by-products are solid carbon and non-condensable gas. Rapid pyrolysis of agricultural and forestry biomass must meet three basic conditions: moderate pyrolysis temperature (450-650 ℃ ), higher heating rate of biomass particles (10 2 ~10 4 K / s) and short gas residence time (0.2 ~ 3s). [0003] The distribution of agricultural and forestry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10B53/02
CPCY02E50/14Y02E50/10
Inventor 苟进胜常建民张立塔任学勇
Owner BEIJING FORESTRY UNIVERSITY
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