viscosity breaking

viscosity breaking

[vi′skäs·əd·ē ′brāk·iŋ]
(chemical engineering)
A petroleum refinery process used to lower or break the viscosity of high-viscosity residuum by thermal cracking of molecules at relatively low temperatures. Also known as visbreaking.
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References in periodicals archive ?
Core production facilities are already working at planned capacities - including CDU/VDU, viscosity breaking, catalytic reforming, and gasoline redistillation units.
We obtained a good correlation between the DOP viscosity breaking up test results and the macrodispersion levels measured by this technique.