Q & A > Question Details
What are the potential problems in a feed injection system of using feed containing high carbon residues , i.e. more than 10 CCR? If feed injection through feed nozzles are a problem for high carbon residue feeds, how can such feeds be vaporized efficiently in RFCC reactor?
 
Answers
30/07/2010 A: Bob Kalaria, KBR, bhavdip.kalaria@kbr.com
The most common problem that refiners typically face with high resid feed is the atomization. Atomization is very essential for cracking the feed and avoiding coke deposits in the reactor. In many cases higher preheat temperature may be required to ensure complete vaporization.
29/07/2010 A: Ralph Ragsdale, Ragsdale Refining Courses, ralph.ragsdale@att.net
The feed nozzle design and installation are among the most important aspects of resid FCC operation. These designs are of necessity known by engineering organizations but are proprietary. Please consult an/your FCC process licensor.