Environmentally clean process for utilizing pyrolysis products
a technology of pyrolysis products and pyrolysis products, which is applied in the direction of gasification process details, combustion ignition, special form destructive distillation, etc., can solve the problems of expensive purification steps, process known, and pollute the atmosphere with gaseous sulfur compounds
Inactive Publication Date: 2012-01-05
T D E RECOVERY TECH LT
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0013]The invention can be usefully exploited in a process for the treatment and utilization the products of the pyrolysis of sulfur-containing high molecular weight organic materials, to generate electric power without environmental contamination and without the formation of non-usable by-products. The process includes the gasification of the solid organic materials and the use of the produced hot gas, together with pyrolysis gas, as a direct heat carrier for a pyrolytic reactor, and the subsequent use of both gas mixtures, after cleaning from hydrogen sulfide, for electric power generation.
Problems solved by technology
However, process known in the art suffer from a variety of drawbacks, such as they release polluting gaseous sulfur compounds into the atmosphere or require expensive purification steps to remove them prior to the release of exhaust gases.
Other processes end with other liquid or gaseous polluting discharges or require cleaning steps that are not economically efficient; furthermore, prior art processes often fail to exploit the pyrolysis products in an efficient manner.
However, all the suggested products of this invention contain sulfur and therefore their combustion products cause sulfur dioxide pollution of the atmosphere.
This method is expensive and cumbersome to perform and, therefore, has not found broad application in the art.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example
[0046]Checking the Interaction of Exhaust Gases, Resulting from the Combustion of Pyrolysis Liquid Fuel in a Diesel Engine and Containing Sulfur Dioxide, with the Stream of Hydrogen Sulfide.
[0047]The liquid fuel was produced from the pyrolysis of discarded tire shreds in an experimental, 7 liter reactor. The final pyrolysis temperature averaged 493° C. The average yields of pyrolysis products are, in mass %;
[0048]gas—10.9;
[0049]liquid—44.4;
[0050]solid—44.7 (including steal cord wire).
[0051]The liquid product density is 0.890; the sulfur content 0.95%.
[0052]The system for the sulfur regeneration testing included equipment for carrying out three sub-stages of catalytic reaction: three reactors, two heaters and three coolers and also the exhaust gases source. The exhaust gases containing sulfur dioxide were produced by a motorcar (“Renault”) operating on diesel fuel. The exhaust gases were passed through an intermediate box and further transported by a blower into the reactor, where th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A process for the recovery of sulfur from the products resulting from the pyrolysis of sulfur-containing organic materials, comprises the steps of: a) carrying out the combustion of liquid pyrolysis products, thereby to obtain sulfur dioxide in the formed exhaust gases; b) reacting hydrogen sulfide recovered from gases, generated in the pyrolysis process, with said sulfur dioxide; and c) reacting hydrogen sulfide recovered from gases, generated in the gasification of solid pyrolysis products, with said sulfur dioxide, and as a result to obtain elemental sulfur, pure gaseous fuel and exhaust gases from liquid products combustion free from sulfur-containing compounds.
Description
FIELD OF THE INVENTION [0001]The present invention relates to an energy-efficient and environmentally friendly process for the pyrolysis of sulfur-containing organic materials. More particularly the invention relates to processes for the recycling of sulfur-containing products, such as vulcanized polymers. A particularly interesting process of this type is the recycling of used tires by a process that does not release sulfur containing compounds into the atmosphere.BACKGROUND OF THE INVENTION[0002]Many methods for the conversion of discarded tires are known in the art, to produce useful products such as fuels. Also known in the art are methods for cleaning obtained products from polluting compounds. However, process known in the art suffer from a variety of drawbacks, such as they release polluting gaseous sulfur compounds into the atmosphere or require expensive purification steps to remove them prior to the release of exhaust gases. Other processes end with other liquid or gaseous...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F01N3/18F23Q2/32
CPCC10B1/10B65G11/206C10B53/07C10J3/66C10J2300/094C10J2300/0946C10J2300/0956C10J2300/0973F27B7/00F27B7/10F27B7/20Y02E20/12C10B51/00F27B7/362F27B7/42F27D3/16F23G5/0276F23G5/20C10B49/04Y02P20/143
Inventor BRONSHTEIN, ALEXANDER P.SKOP, MENACHEM L.WEISS, MOSHEJAKOBOWITCH, DAVID SHALOM
Owner T D E RECOVERY TECH LT