发明名称 |
TREATING SLUDGES AND SOIL MATERIALS CONTAMINATED WITH HYDROCARBONS |
摘要 |
Oily sludges containing volatile hydrocarbons are mixed with diatomaceous earth or perlite in a system which includes an indirect dryer for vaporizing liquids have a boiling point of less than about 700.degree.F. Dried solids are discharged from the dryer and conveyed to an oxidation unit comprising a rotary kiln or lift pipe combustor. Dried hydrocarbon free solids are recirculated for mixing with the oily sludge and condensable vapors are condensed and separated for further use or disposal. A system including the indirect dryer, condenser, oxidation unit, separators for the condensate and separators for gaseous products can be modified to receive hydrocarbon contaminated soils and other earth-like materials having particle sizes ranging from as low as 10 microns up to about 1.0 inches. |
申请公布号 |
CA1301693(C) |
申请公布日期 |
1992.05.26 |
申请号 |
CA19880568446 |
申请日期 |
1988.06.02 |
申请人 |
ATLANTIC RICHFIELD COMPANY |
发明人 |
BEER, GARY L.;LI, YING H. |
分类号 |
B09C1/06;C02F11/12;F23G7/00;F23G7/14 |
主分类号 |
B09C1/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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