Process for the production of oligomerized olefins

Patent metadata

Field	Value
Publication number	US-10550047-B2
Application number	US-201415517695-A
Country	US
Kind code	B2
Filing date	Oct 9, 2014
Priority date	Oct 9, 2014
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

A process for the production of oligomerized olefins comprising the following steps: purification of an organic composition (OC1) in at least one adsorber to obtain an organic composition (OC2); oligomerization of organic composition (OC2) in the presence of a catalyst to obtain an organic composition (OC3); distillation of organic composition (OC3) in a distillation column (D1) to obtain an organic composition (OC4) from the upper part of (D1) and an organic composition (OC5) from the lower part of (D1); hydrogenation of organic composition (OC4) to obtain an organic composition (OC11) and regeneration of an adsorber (A1) employing organic composition (OC11) as regeneration media.

First claim

The invention claimed is:

1. A process for the production of oligomerized olefins comprising the following steps a) to e):
a) purifying an organic composition (OC 1 ) comprising at least one alkane, at least one olefin, and at least one compound containing oxygen and/or sulfur wherein the organic composition (OC 1 ) is fed into at least one adsorber in order to obtain an organic composition (OC 2 ) comprising at least one alkane, at least one olefin, and a reduced amount of at least one compound containing oxygen and/or sulfur compared to the respective amount in the organic composition (OC 1 ),
b) oligomerizing the organic composition (OC 2 ) in the presence of a catalyst, wherein the at least one olefin of the organic composition (OC 2 ) is at least partially oligomerized, to obtain an organic composition (OC 3 ) comprising at least one oligomerized olefin and a reduced amount of the at least one olefin compared to the respective amount in the organic composition (OC 2 );
c) distilling the organic composition (OC 3 ) in a distillation column (D 1 ), wherein:
i) an organic composition (OC 4 ) is obtained from an upper part of (D 1 ) and (OC 4 ) comprises at least one alkane, at least one olefin, and a reduced amount of at least one oligomerized olefin compared to the respective amount in (OC 3 ),
ii) an organic composition (OC 5 ) is obtained from a lower part of (D 1 ) and (OC 5 ) comprises at least 80% by weight of the at least one oligomerized olefin present in organic composition (OC 3 );

d) hydrogenating the organic composition (OC 4 ) to obtain an organic composition (OC 1 ) comprising at least one alkane and a reduced amount of the at least one olefin or a further reduced amount of the at least one oligomerized olefin compared to the respective amounts in the organic composition (OC 4 ); and
e) regenerating an adsorber (A 1 ) employing the organic composition (OC 11 ) as regeneration media.

2. The process according to claim 1 , wherein:
i) the oligomerization according to step b) is a dimerization; or
ii) the at least one olefin in the organic composition (OC 2 ) is butene, which is at least partially dimerized to octane in the oligomerization according to step b).

3. The process according to claim 1 , wherein the at least one adsorber in step a) is an adsorber (A 2 ).

4. The process according to claim 3 , wherein the adsorbers (A 1 ) and (A 2 ) are operated in parallel and the adsorber (A 2 ) is in operation mode according to step a), while the adsorber (A 1 ) is in regeneration mode according to step e).

5. A process for the production of oligomerized olefins comprising the following steps a) to e):
a) purifying an organic composition (OC 1 ) comprising at least one alkane, at least one olefin, and at least one compound containing oxygen and/or sulfur wherein (OC 1 ) is fed into at least one adsorber in order to obtain an organic composition (OC 2 ) comprising at least one alkane, at least one olefin, and a reduced amount of at least one compound containing oxygen and/or sulfur compared to the respective amount in organic composition (OC 1 ),
b) oligomerizing the organic composition (OC 2 ) in the presence of a catalyst, wherein the at least one olefin of the organic composition (OC 2 ) is at least partially oligomerized, to obtain an organic composition (OC 3 ) comprising at least one oligomerized olefin and a reduced amount of the at least one olefin compared to the respective t in the organic composition (OC 2 );
c1) distilling the organic composition (OC 3 ) in a distillation column (D 1 ), wherein:
i) an organic composition (OC 4 ) is obtained from an upper part of (D 1 ) and (OC 4 ) comprises at least one alkane, at least one olefin, and a reduced amount of at least one oligomerized olefin compared to the respective amount in (OC 3 ),
ii) an organic composition (OC 5 ) is obtained from a lower part of (D 1 ) and (OC 5 ) comprises at least 80% by weight of the at least one oligomerized olefin present in organic composition (OC 3 );

c2) distilling the organic composition (OC 4 ) in a distillation column (D 2 ), wherein:
i) an organic composition (OC 2 a ) is obtained from an upper part of (D 2 ) and (OC 2 a ) comprises the at least one alkane and a reduced amount of the at least one olefin compared to the respective amount in (OC 2 ), (OC 3 ), or (OC 4 );
ii) an organic composition (OC 6 ) is obtained from a lower part of (D 2 ) and (OC 6 ) comprises at least 80% by weight of the at least one olefin present in (OC 2 ), (OC 3 ), or (OC 4 ); and

d) hydrogenating the organic composition (OC 2 a ) to obtain an organic composition (OC 11 ) comprising at least one alkane and a further reduced amount of the at least one olefin or of the at least one oligomerized olefin compared to the respective amounts in the organic composition (OC 2 a ); and
e) regenerating an adsorber (A 1 ) employing the organic composition (OC 11 ) as regeneration media.

6. The process according to claim 1 , wherein the organic composition (OC 1 ) comprises at least one sulfur containing compound,
wherein the organic composition (OC 2 ) comprises a reduced amount of the at least one sulfur containing compound compared to the amount in the organic composition (OC 1 ), and
wherein the process further comprises prior to step b): an additional step g), which comprises: g) feeding the organic composition (OC 2 ) into a further adsorber (SA), to further lower the amount of the at least one sulfur containing compound in the organic composition (OC 2 ).

7. A process for the production of oligomerized olefins comprising the following steps a) to e):
a) purifying an organic composition (OC 1 ) comprising at least one alkane, at least one olefin, at least one diene, and at least one compound containing oxygen and/or sulfur, wherein the organic composition (OC 1 ) is fed into at least one adsorber in order to obtain an organic composition (OC 2 ) comprising at least one alkane, at least one olefin, at least one diene, and a reduced amount of at least one compound containing oxygen and/or sulfur compared to the respective amount in the organic composition (OC 1 );
b1) at least partially converting the at least one diene in the organic composition (OC 2 ), into at least one monoolefin by selectively monohydrogenating the organic composition (OC 2 ), to obtain an organic composition (OC 8 ) comprising at least one alkane, at least one monoolefin, a reduced amount of the diene compared to the respective amount in the organic composition (OC 2 );
b2) oligomerizing the organic composition (OC 8 ) in the presence of a catalyst, wherein the at least one monoolefin of the organic composition (OC 8 ) is at least partially oligomerized, to obtain an organic composition (OC 3 ) comprising at least one oligomerized olefin and a reduced amount of the at least one monoolefin compared to the respective amounts in the organic composition (OC 8 );
c) distilling the organic composition (OC 3 ) in a distillation column (D 1 ), wherein:
i) an organic composition (OC 4 ) is obtained from an upper part of (D 1 ) and (OC 4 ) comprises at least one alkane, at least one monoolefin, at least one diene, and a reduced amount of at least one oligomerized olefin compared to the respective amount in (OC 3 ),
ii) an organic composition (OC 5 ) is obtained from a lower part of (D 1 ) and (OC 5 ) comprises at least 80% by weight of the at least one oligomenzed olefin present in organic composition (OC 3 );

d) hydrogenating the organic composition (OC 4 ) to obtain an organic composition (OC 11 ) comprising at least one alkane and a further reduced amount of the at least one monoolefin or of the at least one oligomerized olefin compared to the respective amounts in the organic composition (OC 4 ); and
e) rege

Assignees

• Basf Se

Inventors

• Wagner Hans-Guenter
• Bayer Christoph
• Karrer Lothar
• Crone Sven
• Eggersmann Markus
• Wong Kam Wing
• Pietz Patrik
• Ruetter Heinz

Classifications

• C10G69/126

  polymerisation, e.g. oligomerisation · CPC title

• C10G67/06

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

• C10G57/02

  with polymerisation · CPC title

• B01J23/58

  with alkali- or alkaline earth metals · CPC title

• B01J21/06

  Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof · CPC title