Gas: heating and illuminating – Generators – Cupola
Patent
1990-01-18
1994-05-10
Warden, Robert J.
Gas: heating and illuminating
Generators
Cupola
48 69, 48111, 48128, B01J 300
Patent
active
053104110
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a process and a machine for the transformation of combustibile pollutants or waste materials into clean energy and utilizable products.
It is known to carry out the thermodecomposition of combustible pollutants, such as urban or industrial waste materials, by oxidizing such wastes in controlled conditions of temperature and excess of air and to use the elevated heat developed by the fumes to produce both thermic and electric energy.
However, this well known technique of waste disposal with energy regeneration is only modestly efficient and causes dangerous emissions of harmful substances and micropollutants.
"Plasma Chemistry and Plasma Processing" Vol. 4, No. 4, December 1984, Plenum Publishing Corp., New York, U.S.A., discloses a gasification method of peat by using a steam plasma in order to obtain a high gasification efficiency.
EP-A1-0 194 252 discloses a gasification method which purifies the raw gas produced from tar.
However, up to date the gasification method has not found a wide spread since the problems concerning the high total energetic yield, the elimination of pollutants and the economical convenience have not found a satisfactory unitary solution.
SUMMARY OF THE INVENTION
An aim of the invention is to optimize the gasification method by entirely overcoming all the problems above referred to, that is to carry out a transformation of combustible pollutants or waste materials with total energy regeneration, obtaining clean energy and utilizable products, and realizing this process in an economical way.
A further aim of the invention is to carry out the disposal of urban, industrial and agricultural waste aggregates of all types, particularly solid waste materials, black liquor sludge, combustible pollutants etc.
A further aim of the invention is to carry out the disposal of wastes and combustible pollutans with a machine that allows a rapid recovery of its construction costs.
A further aim of the invention is to dispose of waste materials obtaining products that are completely utilizable in industry, the construction business, agriculture etc.
These aims and other that result hereinafter are achieved, according to the invention, by a process for transforming combustible pollutants and waste materials into clean energy and utilizable products, characterized by: lance at a temperature higher than 1600.degree. C. in an airless atmosphere for a time sufficient to totally decompose it and extract combustible gases based on H.sub.2 and CO, non-combustible gases and inerts, which are forwarded to the subsequent treatment steps without going through said material to be treated, separating the inert products with water, thus generating steam and reducing the gases temperature at not less than 1200.degree. C., mass heated at a temperature higher than 1200.degree. C., to remove the residual pollutants from the gases and to transform them, at least in part, into hydrogen, carbon monoxide and other wholly utilizable gaseous products, and
To carry out this process the invention comprises a machine characterized by comprising: temperature higher than 1600.degree. C. the whole decomposition of the material to be treated into combustible gases based on H.sub.2 and CO, non-combustible gases and inerts, decomposed and to separate the inert products with water, thus generating steam and reducing the gases temperature at not least than 1200.degree. C., a temperature higher than 1200.degree. C., said filter-thermoreactor being connected to said disgregator and to said separator to remove the residual pollutants from the gases and to transform them, at least in part, into hydrogen, carbon monoxide and other wholly utilizable gaseous products, and filter-thermoreactor.
BRIEF DESCRIPTION OF THE DRAWINGS
This invention is herebelow further clarified with reference to the enclosed drawings, in which
FIG. 1 shows a block diagram of the process according to the invention,
FIG. 2 schematically shows a machine implementing the process.
FIG. 3 gives a general view
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Stuart et al, "Synthesis gas Production from Peat Using a Steam Plasma", (1984) Plasma Chemistry & Plasma Processing vol. 4 (1984) pp. 297-313.
Riegel, "Fuels, Steam boilers, hydroelectric power", Industrial Chemistry (1949) pp. 243-247.
Tran Hien
Warden Robert J.
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