# US 10,479,948 B2 · Process for the production of light olefins and aromatics from a hydrocarbon feedstock

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- Number: US 10,479,948 B2
- Document ID: US10479948B2
- Status: Granted
- Kind: B2
- Application number: 14/901,736
- Filed: 2014-06-30
- Published: 2016-12-22
- Granted: 2019-11-19
- Earliest claimed: 2013-07-02
- Assignees: Saudi Basic Industries Corporation; Sabic Global Technologies B.V.
- Applicants: Saudi Basic Industries Corporation; SABIC Global Technologies B.V.; Andrew Mark Ward; Arno Johannes Maria Oprins; Thomas Hubertus Maria Housmans
- Inventors: Andrew Mark Ward; Arno Johannes Maria Oprins; Thomas Hubertus Maria Housmans
- Web page: https://patentgrep.com/patent/US10479948B2

## CPC

- C10G 69/06: including at least one step of thermal cracking in the absence of hydrogen
- C10G 69/00: Treatment of hydrocarbon oils by at least one hydrotreatment process and at least one other conversion process (C10G67/00 takes precedence)
- C10G 69/04: including at least one step of catalytic cracking in the absence of hydrogen
- C10G 2300/1044: Heavy gasoline or naphtha having a boiling range of about 100 - 180 °C
- C10G 2300/1051: Kerosene having a boiling range of about 180 - 230 °C
- C10G 2300/1055: Diesel having a boiling range of about 230 - 330 °C
- C10G 2300/1059: Gasoil having a boiling range of about 330 - 427 °C
- C10G 2300/107: Atmospheric residues having a boiling point of at least about 538 °C
- C10G 2300/1077: Vacuum residues
- C10G 2300/1085: Solid paraffins
- C10G 2400/20: C2-C4 olefins
- C10G 2400/30: Aromatics
- Y02P 30/40: Ethylene production
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

The present invention relates to a process for the production of light olefins and aromatics from a hydrocarbon feedstock, comprising the following steps of: (a) feeding a hydrocarbon feedstock into a FCC unit (b) separating reaction products, which are generated from the FCC reaction, into a bottom stream, and middle stream and a top stream; (c) feeding the middle stream from (b) to a gasoline hydrocracker (GHC) unit, (d) separating reaction products of said GHC of step (c) into an overhead gas stream comprising hydrogen, methane and C2-C4 paraffins, and a bottom stream comprising aromatic hydrocarbon compounds, (e) feeding the overhead stream from the gasoline hydrocracker (GHC) unit into a steam cracker unit.

## Claims

### Claim 1

A process for the production of light olefins and aromatics from a hydrocarbon feedstock, the process consisting of
(a) feeding a hydrocarbon feedstock into a fluid catalytic cracker (FCC) unit
(b) separating reaction products, which are generated from the FCC reaction, into a bottom stream, and middle stream and a top stream;
(c) feeding the middle stream from (b) to a gasoline hydrocracker (GHC) unit,
(d) separating reaction products of said GHC of step (c) into an overhead gas stream comprising hydrogen, methane and C2-C4 paraffins, a stream rich in BTX and a heavy cycle oil stream,
(e) separating C2-C4 paraffins from said overhead gas stream coming from the gasoline hydrocracker (GHC) unit, and feeding only said C2-C4 paraffins from said overhead gas stream from the gasoline hydrocracker (GHC) unit directly to the furnace section of a steam cracker unit;
(f) combining the heavy cycle oil stream from (d) and the bottom stream from (b);
(g) separating reaction products of said steam cracking unit in a separation section into an overhead stream, which contains C2-C6 alkanes, a middle stream, which contains C2-olefins, C3-olefins and C4-olefins, a first bottom stream comprising C9+ hydrocarbons, and a second bottom stream comprising aromatic hydrocarbon compounds and non-aromatic hydrocarbon compounds; and
(h) sending the top stream from (b) to the separation section from (g), wherein the temperature in the FCC is 700° C.