Process and gas generator for generating fuel gas
A technology of gas generator and fuel gas, which is applied in combustion methods, biofuels, and the manufacture of combustible gases, etc. It can solve the problem that the thermal conditions of dry distillation volatiles are not fully suitable, and achieve the effect of promoting controllable release
Inactive Publication Date: 2009-02-04
FORETOP CORP
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Problems solved by technology
The disadvantage is that the thermal conditions for the formation of retort volatiles are not kinetically well suited for the conversion in the gasification shaft reactor
Method used
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[0068] In FIG. 1, the method of the invention is illustrated by a flow chart. The solids to be gasified contain organic material, in the retortable biomass of the working example, such as waste wood, straw, or even hard-to-decompose biowaste or plastics containing metal, such as waste from metal-reinforced insulation materials, or For old tires, these solids are fed into the retort reactor 2 through the solid feeding device 1 and heated, and dried and retorted. The solids are heated in the retort reactor by partially combusting the organic material constituents by adding a vaporizing medium, which is added at a substoichiometric amount compared to the oxidizable solid constituents introduced into the solids. The gasification medium is supplied by gasification and flows into the dry distillation reactor 2 .
[0069]The retort volatiles formed by heating the organic solids in the retort reactor 2 are discharged as crude gas from the retort reactor 2 via the retort volatiles lin...
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The present invention discloses a method and gas generator for the production of fuel gas by dry distillation and gasification of solids which is practically free of condensable dry distillation volatiles which would interfere with the expected gas performance of the gas Applications such as powering internal combustion engines. To this end, the solid beds in the various retort and gasification zones are maintained at conditions that favor thermal cracking of the condensed tar volatiles in the hot zone of these two zones. In order to optimally control these conditions, these zones are physically separated by internals located in separate reactors and optionally by partial carbonization (pyrolysis) in different separate reactors, in In this case the pyrolysis volatiles are fed back to the retort bed, where they are separated from the top and passed through the ember bed in the gasification zone. Thermal cracking of pyrolysis volatiles is prolonged and enhanced by intimate contact and co-current flow of the volatiles through the ember bed of the gasification zone. The ember bed is directed along a tapered channel which controls the rate of delivery and residence time of the solids bed in the process and generator of the present invention.
Description
technical field [0001] The invention relates to a method for producing fuel gas by dry distillation and subsequent gasification of solids, and to a gas generator suitable for carrying out the method. Background technique [0002] The present invention is made based on the situation of following prior art: [0003] The invention originates from a method such as can be implemented by a gas processor as described in DE 33 12 863 C2. In this method, the solid matter to be processed, containing gasifiable organic matter, is passed under the force of gravity through a high-temperature pyrolysis chamber in which, initially free of air, the solids are subjected to thermal distillation at a temperature of about 500°C , followed by gasification to generate fuel gas by adding a gasification medium at about 800°C. The gasification medium is added in a substoichiometric amount compared to the oxidizable species content. Organic solids fed to the upper region of the pyrolysis chamber f...
Claims
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IPC IPC(8): C10J3/66F23G5/027C10B49/06C10B53/02C10J3/14F02C3/28
CPCC10J3/74Y02T50/671C10B53/02Y02E20/18F02C3/28C10J2300/165C10K3/02Y02E20/12C10J2300/1884C10J3/66C10J3/14C10J2300/1671Y02E50/14C10B49/06Y02E50/10Y02T50/60
Inventor 汉斯·赫尔穆特·哈恩海因茨·马勒克海因里希·莫施
Owner FORETOP CORP