Chevron U.s.a. Inc.

Goutam Biswas

Darush Farshid

Bruce Edward Reynolds

Julie Chabot

Shuwu Yang

Kaidong Chen

Bo Kou

Erin Maris

David Michael Bosi

Michael K Porter

Vivion Andrew Brennan

Lucy Wu

James Knight

The present disclosure provides a system and method for responding to an unintended increase in pressure within a high pressure processing system. The system and method of the present disclosure provides a pressure relief system that releases pressure reliably even if the material under pressure is of mixed phase. In addition, the system and method for releasing pressure avoids the need for complex subsystems to contain and process materials that escape the system during the pressure release process.

Pressure relief in high pressure processing system

Systems and methods for hydroprocessing a heavy oil feedstock, the system employs a plurality of contacting zones and separation zones and an interstage solvent deasphalting unit. The contacting zones operate under hydrocracking conditions, employing a slurry catalyst for upgrading the heavy oil feedstock, forming upgraded products of lower boiling hydrocarbons. In the separation zones which operates at a temperature within 20&#xb0; F. and a pressure within 10 psi of the pressure in the contacting zones, upgraded products are removed overhead and optionally, further treated in an in-line hydrotreater. At least a portion of the non-volatile fractions recovered from at least one of the separation zones is sent to the interstage solvent deasphalting unit, for separating unconverted heavy oil feedstock into deasphalted oil and asphaltenes. The deasphalted oil stream is sent to one of the contacting zones for further upgrade.

Systems and methods for producing a crude product

Growing community of inventors

Danville, CA, United States of America

Goutam Biswas