Patent · US Expired

Process for recovery of tank bottom wastes

US5259945A · kind A · utility

9Cited by

2References

9Claims

0Family size

Inventors

Lyle A. Johnson, Jr. · Laramie, US
Robert Satchwell · Laramie, US
Ronald R. GLASER · Laramie, US
Lee E. Brecher · Lexington, US

Key dates

Filing date	Apr 15, 1992
Grant date	Nov 9, 1993
Priority date	—
Expiry date	Apr 15, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB09C1/06
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A process for the recovery of tank bottom wastes employing a flash tank fed with hot, pressurized tank bottom wastes and separating a vapor component and heavier bottoms then fed to a stripping reactor along with hot gas producing an overhead vapor with a solid remainder. Such remainder is alternatively fed to a pyrolyzing reactor at elevated temperatures producing vapors with a solid residue. The vapor streams are used with a regenerative heat exchanger to heat said tank bottom wastes to a temperature appropriate for entering the flash tank. Certain recycled material is employed as fuel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.