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Novel method for pyrogasification of organic waste

A technology for cracking gasification and organic waste, applied in combustion methods, incinerators, biofuels, etc., and can solve the problems of incomplete and insufficient cracking of condensable gas and tar, poor cracking, etc.

Inactive Publication Date: 2012-05-16
VALWASTE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since cracking gases are produced as soon as the beads come into contact with the substance when the beads are introduced, this method does not adequately crack condensable gases and tars since these gases are no longer associated with the hot bead bed from the time they are produced to the time they are withdrawn. contact with residues
Such a small contact surface makes lysis poor and incomplete
Another disadvantage of this method is that when in cluster form, the beads tend to clump together, especially at high temperatures, and then they become difficult to handle and transport

Method used

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  • Novel method for pyrogasification of organic waste
  • Novel method for pyrogasification of organic waste
  • Novel method for pyrogasification of organic waste

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Embodiment Construction

[0025] These ring coils travel in the stationary shaft furnace in the same direction as the material to be cracked.

[0026] The choice of a toroid rather than a bead is critical in the present invention: the toroid has the highest ratio of heat exchange surface area to weight, which is important because the toroid is in a furnace It provides the best possible yield both when heated and when the energy is recovered and transferred to the material to be cracked. For example, a traditional heat-resistant steel ball (that is, a spherical shape with a diameter of 40mm) weighs 261.4 grams and has a diameter of 5026.55mm 2 exchange surface. For a weight substantially equal to 262 grams, it is possible to use a toroid with an outer diameter of 60 mm and an inner diameter of 24 mm, resulting in a cross-section of 18 mm. The exchange surface of this toroid will be 7461.42mm 2 . For a comparable weight of steel, the exchange surface area ratio between the toroid and the sphere is th...

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Abstract

The present invention relates to a novel method for pyrogasification of organic waste. The inventive method uses a vertical furnace (1) filled with metal masses in the form of metal toroids (2), previously heated to a high temperature (500 to 1100 DEG C), and organic matter (3) to be pyrolysed. The method also involves a furnace (9) suitable for heating the toroids (2) conveyed by an Archimedes screw (18) driven by a gear motor (19), as well as a separator (11) for recovering the mineral residue (12), the toroids (2) and the residue (12) being separated using a screen (14) and an Archimedes screw (15) driven by a gear motor (16). The inventive method can be used for treating all products which contain organic matter, whether from biomass and thus considered renewable energy, or not from biomass.

Description

technical field [0001] The invention relates to a new method for cracking and gasifying organic waste. Background technique [0002] Pyrolysis gasification is a method of processing organic matter and recovering energy from it. [0003] In this description, "organic matter" and "organic waste" are understood to mean the matter contained in waste and agricultural and biomass products and by-products. [0004] Energy recovery from waste and biomass is of the greatest interest today due to its commitment to effectively combat the greenhouse effect and future shortage of fossil fuels. [0005] The method according to the invention utilizes the pyrolysis gasification of organic matter. [0006] Several pathways exist for energy recovery from organic matter: [0007] - incineration, a well-known and widely used method, is currently criticized due to its installation costs and especially its high off-gas (dioxins, furans, heavy metals, etc.) remediation costs; [0008] - Methan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B49/16C10B49/18
CPCF23G2201/302C10B49/16F23G2206/203F23G2201/303F23G2201/301Y02E20/12C10B49/18Y02E50/14F23G2203/8013F23G2900/50801C10B53/02Y02E50/10Y02P20/133
Inventor 弗朗索瓦·胡斯泰奇艾伦·香泰莱特
Owner VALWASTE
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