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catalytic cracker

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catalytic cracking

–noun
the reduction of the molecular weight of hydrocarbons by a catalyst, accomplished in a petroleum refinery by a type of chemical reactor (catalytic cracker). Compare cracker (def. 8), cracking (def. 1).
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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catalytic cracker  
n.  An oil refinery unit in which the cracking of petroleum takes place in the presence of a catalyst.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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