Combined hydrotreating and process

Details Combined hydrotreating and process Combined hydrotreating and process

2007-07-03

2007-07-03

Bhat, N. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

C208S059000, C208S080000, C208S089000, C208S097000, C422S198000

Reexamination Certificate

active

10478703

ABSTRACT:
First (210) and second (240) feedstocks are hydrotreated in an integrated hydrogenation plant (200) using a hot separator (230) that provides a vapor stream containing at least some of the hydrotreated first feedstock (210), wherein the second feedstock (240) is mixed with the vapor stream at a position downstream of the separator (240) and upstream of the a second hydrotreating (250) reactor to form a mixed second feedstock that is fed into the second hydrotreating reactor (250) to produce a ultra-low sulfur product.

REFERENCES:
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patent: 5904835 (1999-05-01), Thakkar
patent: 6217746 (2001-04-01), Thakkar et al.
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patent: 6797154 (2004-09-01), Mukherjee et al.
patent: 2003/0111385 (2003-06-01), Cash et al.
patent: 2004/0173503 (2004-09-01), Stupin et al.

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