the cracking of petroleum or the like in the presence of hydrogen.
Origin of hydrocracking
verb (used with object)
to crack (petroleum or the like) in the presence of hydrogen.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A process by which the hydrocarbon molecules of petroleum are broken into simpler molecules, as of gasoline or kerosene, by the addition of hydrogen under high pressure and in the presence of a catalyst. See also cracking.
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