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Understand differences between thermal and hydrocracking

09.01.2011  |  Sayles, S.,  KBC Advanced Technologies, Houston, TexasRomero, S.,  KBC Advanced Technologies, Houston, Texas

Successful operation and product yields are controlled by reactions at the molecular level

Keywords: [hydrocracking] [coking] [delayed coking] [hydrogen] [residual] [vacuum residual] [modeling]

Optimizing performance from existing residual upgrading equipment is achieved through maximum asset utilization. During the upgrade of residual facilities, economic goals of the project required operating at the upper end of the design envelope due to equipment limitations. The solution may involved new equipment to remove the identified bottlenecks. But, budget and investment constraints can limit funding, and careful prioritization is needed to justify capital expenditures. Understanding the conversion, yields and product qualities between competing conversion processes allows better investment selection. This case history discusses in detail thermal cracking kinetics—a common link between coking—and residual hydrocracking.1

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