Method for gasifying toxic and hazardous waste oil
US4854944A · kind A · utility
Inventor
Key dates
| Filing date | Jun 6, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Jun 6, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G9/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for treating carbonaceous material, e.g. waste oil containing PCB toxic materials, by effecting the pyrolytic gasification thereof to produce a relatively high BTU content gas that is substantially free of the toxic materials to supplement or substitute for natural gas. This is attained by a furnace in which the products of combustion are utilized to separately generate steam and to preheat a supply of carbonaceous material which may be mixed with water. The generated steam is mixed with the preheated carbonaceous material and passed through a premixing and/or a primary dynamic mixer wherein the preheated carbonaceous material and steam mixture is further heated to a temperature ranging between 1600.degree.-1800.degree. F. to effect a partial gasification of the carbonaceous material. The partially gasified material is thereafter directed through one or more secondary dynamic mixing chambers to be further heated in the presence of additional steam to complete the gasification thereof. The generated gases are thereafter scrubbed and washed to remove any solid residue and thereafter passed through a condensor to effect the removal of any residual water; and from which the co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.