Gas tight tank cleaning method

Details Gas tight tank cleaning method Gas tight tank cleaning method

1997-08-22

1998-07-07

Stinson, Frankie L.

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 21, 134 221, B08B 908

Patent

active

057762570

ABSTRACT:
Methods for cleaning industrial tanks are disclosed in which a fast temporary seal is applied to a manway entry into a tank to be cleaned. A robotic tank cleaning system is introduced through the temporary seal into the tank. The tank interior is sprayed with diluent to remove liquid and solid volatile organic compound (VOC) generating residue. VOC's are removed from the tank by repetitive diesel and water/surfactant fogging until a safe, legal level of VOC's remains in the tank atmosphere.

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patent: 4770711 (1988-09-01), Deal, III et al.
patent: 5041165 (1991-08-01), Urbani
patent: 5091016 (1992-02-01), Krajicek et al.
patent: 5409025 (1995-04-01), Semler et al.
patent: 5591272 (1997-01-01), Hummer
patent: 5640982 (1997-06-01), Landry et al.

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