hydrocracking

[hahy-druh-krak-ing] /ˈhaɪ drəˌkræk ɪŋ/
noun
1.
the cracking of petroleum or the like in the presence of hydrogen.
Origin
1935-40; hydro-2 + cracking

hydrocrack

[hahy-druh-krak] /ˈhaɪ drəˌkræk/
verb (used with object)
1.
to crack (petroleum or the like) in the presence of hydrogen.
Examples from the web for hydrocracking
  • The hydrocracking units use heavy feedstocks, and can generate more distillate.
  • hydrocracking of coal-derived heavy distillates can produce quality gasoline, jet, and diesel fuels.
  • The choice between catalytic cracking and hydrocracking depends on the refinery infrastructure.
  • However, a need for some additional hydrocracking capacity is expected.
hydrocracking in Science
hydrocracking
  (hī'drə-krāk'ĭng)   
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.