2020 REFINING PROCESSES HANDBOOK PROCESS CATEGORIES COMPANY INDEX Indmax℠ FCC for maximum olefins (cont.) catalyst is then transported in dilute phase to the center of the regenerator (8) through a unique square-bend spent catalyst transfer line (7). Catalyst is regenerated by efficient contacting with air for complete combustion of coke. For resid-containing feeds, an optional catalyst cooler is integrated with the regenerator. The resulting flue gas exits via cyclones (9) to energy recovery/flue gas treating. The hot regenerated catalyst is withdrawn via an external withdrawal well (10). The well allows independent optimization of catalyst density in the regenerated catalyst standpipe, maximizes slide valve (11) pressure drop and ensures stable catalyst flow back to the riser feed injection zone. Installation: A total of eight Indmax FCCUs are licensed. Two commercial units are in operation and one RFCCU is scheduled to start up during 2Q 2020. Five more Indmax FCCUs are in the detailed engineering phases of design: one RFCCU, two FCCU revamps, and two grassroots FCCUs processing hydrotreated feedstocks. Licensor: Lummus Technology Website: www.lummustechnology.com Contact: Technology@lummustech.com Copyright © 2020 Gulf Energy Information. All rights reserved.http://www.hydrocarbonprocessing.com/ http://www.lummustechnology.com