Occidental Research Corporation

Occidental Petroleum

Hans F Bauer

Norman W Green

Allan S Sass

Kenneth A Williams

Leon Robinson

The gas stream obtained from the pyrolysis of solid organic wastes and containing halogens, particularly chlorine in the form of the corresponding hydrogen halide is processed to obtain a halide free pyrolytic oil. The gas stream after solids removal is contacted with a solid metal halide acceptor above the dew point of pyrolyzate to form the corresponding metal halide which may be discarded. As an alternative the metal halide can be treated to release the hydrogen halide which is recovered as an acid and the acceptor regenerated for recycle. The preferred acceptor is calcium carbonate.

Removal of chlorine from pyrolysis vapors

The instant invention relates to a method of converting the solid organic fraction of solid waste into a powdered fuel which comprises heating said solid organic fraction in an inert atmosphere for a time and at a temperature sufficient to embrittle said solid organic fraction without causing substantial decomposition, pyrolysis, or dry weight loss of said solid organic fraction, comminuting said embrittled solid organic fraction to a powder which is less than a predetermined particle size, and recovering said powder. The inert atmosphere will comprise less than 1% by weight oxygen and is preferably a mixture of carbon oxides and nitrogen. The embrittling process takes place at a temperature of at least 125.degree. C., preferably from 150.degree. C. to 250.degree. C. and said embrittled solid organic fraction is preferably comminuted to a predetermined particle size of less than 10 mesh.

Method of embrittling waste

A process for producing organic liquid product from solid organic waste. The process comprises pyrolyzing the solid organic waste to produce pyrolysis vapors and solid pyrolysis residue. The solid residue is separated from the pyrolysis vapors leaving entrained particulate matter in the vapor. At least a portion of the pyrolysis vapor is condensed for producing pyrolysis liquid containing entrained particulate matter. The pyrolysis liquid is centrifuged producing a light fraction containing entrained particulate matter, a middle fraction substantially free of particulate matter and a heavy fraction containing entrained particulate matter. The middle fraction is recovered as organic liquid product substantially free of entrained particulate matter. The light fraction and heavy fraction are mixed and filtered. The liquid filtrate produced is distilled for producing additional organic liquid product.

Removal of particulates from pyrolytic oil

This invention covers an improved hydrodesulfurization process which significantly reduces the organic sulfur content of char by first magnetically or electrostatically removing iron sulfides and precursors of iron sulfides from char and then hydrodesulfurizing the remaining char.

Process for reducing the organic sulfur content of char

A process for reducing the sulfur content of char by means of a basic molten bath of an alkali metal or alkaline earth metal salt of a hydroxyaryl or an alcohol.

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Diamond Bar, CA, United States of America

Hans F Bauer