The Dow Chemical Company

Other

Perigee Solutions International, LLC

Gary L Gardner, Sr

Michael R Dorton

Hiep D Dang

John R Pimlott

Roy L Hicks

A process is provided for removing polymeric fouling on process equipment surfaces to restore the efficiency of such equipment. This is accomplished by contacting the fouled equipment with a solvent comprising at least one non-aromatic hydrocarbon compound, or a mixture of one or more non-aromatic organic compounds and one or more aromatic hydrocarbon compounds, for a period of time sufficient to remove the polymeric fouling.

Process for removing polymeric fouling

A process is described for removing olefinic polymer mass buildup fouling process equipment to restore the efficiency of such equipment. This is accomplished by circulating through the equipment in contact with the polymer an aromatic hydrocarbon solvent having a high boiling point and low vapor pressure for a period of time sufficient to remove the polymer. The solvent is recovered for reuse by a flash separation from the removed olefinic polymer mass.

Process for cleaning polymeric fouling from equipment

A method of controlling the emission of volatile organic compound vapors from storage vessels via pressure swing absorption utilizing a single adsorber vessel is disclosed.

Emission suppression system for stored volatile organic compounds

An electrolysis flat plate cell frame separating device for changing out one or more cells, gaskets and/or membranes from a stack in a flat plate membrane cell electrolyzer without having to shift other cells one at a time and a method of use.

Flat plate electrolysis cell frame separator and method

The present invention is directed to a process and apparatus for controlling the pressure load on gaskets of an electrolysis cell by comparing the internal cell pressure to the pressure of the hydraulic fluid to the cell compressor and activating a controller for adjusting the pressure to a set point based on the data obtained by the comparison. The apparatus includes a hydraulic compressor adapted for pressing cell members together, a pressure sensor for measuring the pressure inside the electrolysis cell, a pressure sensor for measuring the pressure in the compressor, and a controller for controlling the amount of hydraulic fluid to and from the compressor.

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Lake Jackson, TX, United States of America

Gary L Gardner, Sr