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Precisely controlled biomass gas and biomass carbon preparation system

A biomass gas and biomass char technology, which is applied in the fields of biofuel, special form dry distillation, petroleum industry, etc., can solve the problems of no material height control, small size, poor reliability, etc., and achieves a high level of automation, wide application fields, Stable quality effect

Active Publication Date: 2012-07-11
浙江瑞拓展泰再生能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the screw pitch does not change, and the volume change during the biomass pyrolysis process is not considered; the screw blade is too small to drive the biomass material with low density; there is no material height control; the volume of the gas side of the reactor is too small
[0027] Generally speaking, in the current biomass pyrolysis technology, it is difficult to accurately control the pyrolysis reaction of biomass raw materials with complex composition and low density, and it is difficult to push the materials in the reactor with high temperature. The overall efficiency of pyrolysis Insufficiencies and shortcomings such as low reliability, poor reliability, and inability to scale up commercial applications

Method used

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  • Precisely controlled biomass gas and biomass carbon preparation system
  • Precisely controlled biomass gas and biomass carbon preparation system
  • Precisely controlled biomass gas and biomass carbon preparation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The precisely controlled biomass gas and biomass char preparation system has a pyrolysis reaction body 21, the front end of which is connected to the feed bin 12, and the rear end has two outlets, namely the upper biomass gas outlet 26 and the lower biomass gas outlet. The charcoal discharge port 25, the feed bin 12 is connected with the screw feed device 11, the rear section of the screw of the screw feed device 11 has no screw, the biomass carbon discharge port 25 is connected with the screw discharge device 32, and the pyrolysis reaction body 21 The bottom is equipped with a double helix structure screw propulsion device 22, the screw blade is belt type and has horizontal rake teeth, the number of rake teeth is reduced in the high temperature area, hot air passes through the screw shaft, and the bottom of the pyrolysis reaction body 21 is equipped with an air supply device 23 At the bottom of the pyrolysis reaction body 21, there are holes at the bottom of the pyrolys...

Embodiment 2

[0071] In this embodiment, the screw propulsion device 22 of the pyrolysis reaction unit 2 adopts a single screw structure, and the rest is the same as that of Embodiment 1. The system of this embodiment is mainly aimed at heavy biomass raw materials, such as sawdust.

Embodiment 3

[0073] In this embodiment, there is no hot air jacket outside the pyrolysis reaction body 21, and there is no hot air inside the screw shaft of the screw propulsion device 22, which is suitable for some occasions without waste heat sources, and the rest are the same as in Embodiment 1.

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Abstract

The invention relates to a precisely controlled biomass gas and biomass carbon preparation system. The preparation system comprises three continuous working units of a charging unit, a pyrolytic reaction unit and a discharging unit, wherein the charging unit is provided with a helical charging device, and helical blades of the helical charging device are arranged densely and sparsely; the pyrolytic reaction unit is provided with a pyrolytic reaction body, a helical propulsion device and an air supply device are arranged in the pyrolytic reaction body, and the helical propulsion device is provided with band-shaped blades which are arranged densely and sparsely and are provided with rake teeth; the discharging unit is provided with a helical discharging device and an air material conveying system; and a pyrolytic reaction control system is arranged on the pyrolytic reaction unit and is used for finely controlling and integrally optimizing the material height, the material propulsion speed, the pyrolytic reaction temperature and the reaction intensity so as to maximally improve the pyrolytic efficiency. The preparation system has the advantages of good and stable quality of biomass gas and biomass carbon, wide application field, capability of treating a wide range of biomasses and organic wastes, and high automation level.

Description

technical field [0001] The invention relates to a preparation system of biomass gas and biomass charcoal, in particular to a preparation system of biomass gas and biomass charcoal which can precisely control the pyrolysis efficiency of biomass. Background technique [0002] Energy is the basis for the survival and development of modern society. The supply capacity of energy is closely related to the sustainable development of the national economy and is one of the foundations of national strategic security. China's current energy supply situation is grim, and the burden on environmental quality is heavy. Due to the dwindling reserves of fossil energy, large fluctuations in oil prices, concerns about energy security and global warming, the development of clean and renewable energy has become an urgent issue, and the new energy industry is showing high growth. According to the widely demonstrated industrial background and development overview of renewable energy, biomass gasi...

Claims

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Application Information

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IPC IPC(8): C10B53/02
CPCY02E50/14Y02E50/10
Inventor 崔云翔景学森王兢肖正明秦为军
Owner 浙江瑞拓展泰再生能源有限公司
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