Hydrotreating process and apparatus relating thereto

Patent metadata

Field	Value
Publication number	US-9914889-B2
Application number	US-201715459243-A
Country	US
Kind code	B2
Filing date	Mar 15, 2017
Priority date	Aug 20, 2012
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

One exemplary embodiment can be a process for treating a hydroprocessing fraction. The process can include obtaining a bottom stream from a fractionation zone, and passing at least a portion of the bottom stream to a film generating evaporator zone for separating a first stream containing less heavy polynuclear aromatic compounds than a second stream.

First claim

The invention claimed is:

1. An apparatus for hydroprocessing, comprising:
A) a hydroprocessing zone;
B) a fractionation zone communicating with the hydroprocessing zone for receiving a hydroprocessed fraction;
C) a first stripping zone communicating with the fractionation zone for receiving a bottom stream;
D) a second stripping zone communicating with the first stripping zone for receiving at least a portion of a stripped stream from the first stripping zone; and
E) an overhead stream obtained from the second stripping zone providing a stripping stream to the first stripping zone.

2. The apparatus according to claim 1 , further comprising an adsorption zone communicating with the first stripping zone for receiving another portion of the stripped stream.

3. The apparatus according to claim 2 , wherein the adsorption zone comprises an activated carbon.

Assignees

• Uop Llc

Inventors

• Hoehn Richard K
• Banerjee Soumendra Mohan
• Bowman David M
• Zhu Xin X

Classifications

• C10G31/06

  by heating, cooling, or pressure treatment · CPC title

• C10G67/06 Primary

  including a sorption process as the refining step in the absence of hydrogen · CPC title

• C10G67/02

  plural serial stages only · CPC title

• C10G25/03

  with crystalline alumino-silicates, e.g. molecular sieves · CPC title

• C10G2300/1096

  Aromatics or polyaromatics · CPC title