Process for cracking nitrogen-containing feedstocks

Details Process for cracking nitrogen-containing feedstocks Process for cracking nitrogen-containing feedstocks

1987-06-24

1988-03-15

Sneed, Helen M. S.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208113, 208254R, 208282, 208299, C10G 1105, C10G 17095

Patent

active

047311746

ABSTRACT:
Hydrocarbon feedstocks containing relatively high levels of nitrogen contaminants are converted to products of lower average molecular weight by first mixing the feedstock with a dicarboxylic acid such as oxalic acid and then contacting the resultant mixture with a cracking catalyst in a cracking zone under cracking conditions in the substantial absence of added molecular hydrogen. The use of a dicarboxylic acid in lieu of a mineral acid such as sulfuric acid or nitric acid results in less corrosion to FCC unit internals and less emissions of sulfur and nitrogen oxides from the FCC unit regenerator.

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