ZSM-22 zeolite, hydroisomerization catalyst and method for producing same, and method for producing hydrocarbon

Patent metadata

Field	Value
Publication number	US-9840672-B2
Application number	US-201314388525-A
Country	US
Kind code	B2
Filing date	Mar 29, 2013
Priority date	Mar 30, 2012
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A method for producing a hydroisomerization catalyst includes a first step of preparing a support precursor by heating a mixture containing an ion-exchanged zeolite and a binder, the ion-exchanged zeolite being prepared by ion-exchanging an organic template-containing zeolite which contains an organic template and has a one-dimensional pore structure including a 10-membered ring in a solution containing ammonium ions and/or protons, at a temperature of 250 to 350° C. under N 2 atmosphere, and a second step of preparing a hydroisomerization catalyst, which is prepared by calcining a catalyst precursor, the catalyst precursor being prepared based on the support precursor containing a platinum salt and/or a palladium salt, at a temperature of 350 to 400° C. in an atmosphere containing molecular oxygen, the hydroisomerization catalyst containing a support which includes a zeolite and carries platinum and/or palladium.

First claim

The invention claimed is:

1. A method for dewaxing hydrocarbon oil comprising:
contacting a hydrocarbon oil comprising normal paraffins having 10 or more carbon atoms with a hydroisomerization catalyst in the presence of hydrogen to convert some or all of the normal paraffins into isoparaffins,
wherein the hydroisomerization catalyst is produced by a process comprising:
a first step of preparing a support precursor by heating a mixture containing an ion-exchanged zeolite and a binder, the ion-exchanged zeolite being prepared by ion-exchanging an organic template-containing zeolite which contains an organic template and has a one-dimensional pore structure including a 10-membered ring in a solution containing ammonium ions and/or protons, at a temperature of 250 to 350° C. under N 2 atmosphere, and
a second step of preparing a hydroisomerization catalyst, which is prepared by calcining a catalyst precursor, the catalyst precursor being prepared based on the support precursor containing a platinum salt and/or a palladium salt, at a temperature of 350 to 400° C. in an atmosphere containing molecular oxygen, the hydroisomerization catalyst containing a support which includes a zeolite and carries platinum and/or palladium;
and wherein the organic template contains 1,8-diamino octane.

2. A method for producing hydrocarbons comprising:
contacting a hydrocarbon feedstock comprising normal paraffins having 10 or more carbon atoms with the hydroisomerization catalyst of claim 1 in the presence of hydrogen.

3. A method for producing lubricant base oil comprising:
contacting a hydrocarbon feedstock comprising normal paraffins having 10 or more carbon atoms with the hydroisomerization catalyst of claim 1 in the presence of hydrogen,
under conditions in which the conversion of the normal paraffins, which is defined by the Expression (I), becomes substantially 100% by mass:

Normal
⁢

⁢
paraffin

conversion
⁢

⁢

(
%
)

=

[

1
-

(

Total
⁢

⁢
mass
⁢

⁢
of
⁢

⁢
normal
⁢

⁢
paraffins
⁢

⁢
equal

to
⁢

⁢
or
⁢

⁢
greater
⁢

⁢
than
⁢

⁢
Cn
⁢

⁢
contained
⁢

⁢
in

contacted
⁢

⁢
hydrocarbon
⁢

⁢
feedstock

)

(

Assignees

• Jx Nippon Oil & Energy Corp

Inventors

• Nagayasu Yoshiyuki
• Hayasaka Kazuaki
• Yokoi Mayumi
• TAKAHAMA Koshi

Classifications

• C10G45/64

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

• B01J2229/186

  not in framework positions · CPC title

• C07C2529/06

  Crystalline aluminosilicate zeolites; Isomorphous compounds thereof · CPC title

• C07C5/2775

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

• C07C2529/068

  Noble metals · CPC title