Refiners have several options to overcome FCCU opacity limitations

01/11/1999
Dennis L. Salbilla Akzo Nobel Polymer Chemicals Inc. Pasadena, Tex. Equations [276,334 bytes] A fluid-catalytic cracking unit (FCCU) operating at or near a stack-opacity limitation potentially can be the primary refinery-run limitation. Refiners can overcome opacity (that is, flue-gas particulate emissions) limitations in several ways: Identifying variables that affect opacity measurements Optimizing operating conditions Modifying catalyst physical properties Considering abatement-hardware options. Familiarity with the procedure to measure stack opacity allows refiners to identify the variables which affect opacity. This knowledge,...
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