Shell Oil Comapny

Cytec Technology Corporation

Oil Equipment Manufacturing, LLC

James Donald Carruthers

Peter Joseph Shukis

Vincent Joseph Lostaglio

Einar P Gudjohnsen

An audible fill level alarm is provided. The alarm includes a whistle body having a lower whistle hole, a whistle-tube depending from said whistle body, and a whistle disk having an upper whistle hole. The whistle disk and the whistle body define a whistle chamber that is conical in shape.

Audible fill level alarms for liquid storage vessels

Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals which catalysts in addition contain a nanocrystalline phase of alumina of a crystalline size at the surface of less than 25&angst;. Also provided are processes for preparing such high activity catalysts and various uses thereof.

Process for improving catalysts

Provided are high activity catalysts based upon gamma alumina containing substrates impregnated with one or more catalytically active metals, which catalysts in addition contain a nanocrystalline phase of alumina of a crystalline size at the surface of less than 25 &angst;. Also provided are processes for preparing such high activity catalysts and various uses thereof.

Process for forming high activity catalysts

Process for regenerating catalysts

High activity catalysts

High activity catalysts having a bimodal mesopore structure

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Bethany, CT, United States of America

Peter Joseph Shukis