Selective vaporization process

Details Selective vaporization process Selective vaporization process

1984-12-14

1986-02-11

Doll, John

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208127, 208251R, 208262, 502 54, 502515, 502516, C10G 2509

Patent

active

045697540

ABSTRACT:
Coke or coke and hydrogen production may increase when the Asphalt Residual Treating (ART) Process for removing metallic and carbonaceous contaminants from hydrocarbons is operated with feed stock containing impurities that result in the deposition on the solid particulate contact material of acidic metallic compounds such as heavy metal chlorides. Coke or coke and hydrogen production is reduced by charging ammonia or other fugitive basic nitrogen compounds to the system after burning coke from the circulating inventory of catalytically inert contact material and prior to selectively vaporizing incoming charge of feed stock in the presence of the hot regenerated contact material.

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