Chevron Products Company - salt lake city, utah

Challenge: 

Chevron Products Company needed to replace their existing electrostatic precipitator with a new ESP to treat the flue gas from a fluid catalytic cracker (FCC).  The new precipitator needed to meet an emission limit of 5.5 lb/hr when treating the maximum inlet load and maximum gas volume with any combination of two (2) bus sections out of service.  Their objective was to maintain continuous on-line reliability for periods of five (5) years.

Southern Environmental's Solution: 

Southern Environmental, Inc. provided detailed engineering, material supply, fabrication, construction, start up services and 1/10th scale physical model study for a new FCCU ESP, including new inlet and outlet duct work to connect the ESP to the existing inlet and stack.  The discharge electrodes used were SEI’s patented SEI/ELEX RS Rigid Discharge Electrodes (RDE).  Additionally a pre-fabricated Precipitator MCC Building was supplied with the housed equipment pre-installed.  The ESP consisted of a single casing with six (6) mechanical fields in the direction of gas flow and three (3) hoppers.

Project Duration:

• Purchase Order Received: July 2008

• Material delivered: March 2009

• Start Up: September 2009

Detailed Engineering in the following disciplines:

• Civil

• Structural

• Mechanical

• Electrical

Fabrication and Construction Services:

• ESP Fabrication

• Field Technical Support

• Mechanical Construction

• Insulation Installation

• Electrical Installation

Guaranteed Outlet PM Emissions:

0.001 gr/acf when any four (4) of the twelve (12) electrical sections are out of service.

Emissions from the stack are guaranteed not to cause a discharge into the atmosphere of any gases that exhibit greater than 5% opacity when any four (4) of the twelve (12) electrical sections are out of service.