Method and apparatus for cleaning railroad tank cars

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United States of America Patent

PATENT NO 9737918
SERIAL NO

14885438

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Abstract

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A blend of aliphatic hydrocarbons and polyglycol ether(s) is used in a process for cleaning railroad tank cars that have been gravity drained of hydrocarbon fluids but may be left with a residuum containing heavy hydrocarbons, paraffin and noxious gas. A simple recirculation system is established between the chemical source, the contaminated railcar, canister filters and back to the chemical source. Contaminates are removed from the cleaning chemical by the filters and there is no water or steam used which might otherwise damage the railcar.

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Patent Owner(s)

Patent OwnerAddress
BIOCHEM SYSTEMS INCSPRING TX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jansen, Bruce Montgomery, US 1 0
Nath, Cody Houston, US 4 18

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