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visbreaking

   Also found in: Wikipedia 0.02 sec.
visbreaking [′vis‚brāk·iŋ]
(chemical engineering)
viscosity breaking


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In general, there are two main routes to residue upgrading; 1)carbon rejection, such as delayed coking, residue FCC, solvent deasphalting and visbreaking, which themselves do not consume hydrogen, although their products need further hydrotreating and/ or hydrocracking, which will consume hydrogen; and 2) hydrogen addition, such as residue hydrocracking, using ebullated bed or bunkeringbed, or residue hydrodesulphurisation, using fixed bed technology.
Big policy changes are needed in the energy system by Oil & Gas News
Applications and case studies are included, in areas such as fouling mitigation, coking, visbreaking, and hydroconversion.
Process chemistry of petroleum macromolecules by SciTech Book News
The cracker, built by Snamprogetti of Italy and the local Tekfen, includes units for vacuum distillation, visbreaking, and sulphur recovery.
TURKEY - The Refineries by APS Review Downstream Trends
 
 
 
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