Dubbs
Dubbs : One of a number of thermal (i.e., noncatalytic) processes for cracking petroleum, widely used in the 1920s and 30s. Invented by J. A. Dubbs and C. P. Dubbs and promoted by The Universal Oil Products Company (now UOP). One of the original patents (U.S. 1,123,502), filed in 1909 but not granted until 1915, was mainly concerned with methods for breaking an emulsion by subjecting it to heat and pressure, but subsequent amendments and filings extended it to cover continuous distillation and condensation under pressure. Widely adopted from 1923 and used until the introduction of catalytic cracking
No records Found