Storing method of activated catalysts for fischer-tropsch synthesis

Patent metadata

Field	Value
Publication number	US-2016296918-A1
Application number	US-201414392244-A
Country	US
Kind code	A1
Filing date	Nov 26, 2014
Priority date	Nov 28, 2013
Publication date	Oct 13, 2016
Grant date	—

Abstract

The present invention relates to a method for producing the activated catalyst for Fischer-Tropsch synthesis comprising: a first step of reducing a catalyst for Fischer-Tropsch synthesis; a second step of preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated; and a third step of introducing the reduced catalyst prepared in the first step into the liquid hydrocarbon prepared in the second step while blocking its contact with air. Since the reduced catalyst used for Fischer-Tropsch synthesis is introduced into liquid hydrocarbon from which molecular oxygen is removed or coated by liquid hydrocarbon, the catalyst for Fischer-Tropsch synthesis activated based on the present invention maintains a high activity even if exposed to the air for a long time, thereby easily facilitating the long-term storage and long-distance transfer of the reduced catalyst.

First claim

1 . A method for producing an activated catalyst for Fischer-Tropsch synthesis comprising:
a first step of reducing a catalyst for Fischer-Tropsch synthesis using hydrogen or carbon monoxide-containing reduced gas; a second step of preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated; and a third step of introducing the reduced catalyst prepared in the first step into the liquid hydrocarbon prepared in the second step without its contact with air.

2 . The method for producing the activated catalyst according to claim 1 , wherein the second step is a step of eliminating molecular oxygen by bubbling an inert gas in liquid hydrocarbon for more than 12 hours.

3 . The method for producing the activated catalyst according to claim 1 , wherein the first step is carried out at a temperature ranging from 300 to 500° C.

4 . The method for producing the activated catalyst according to claim 2 , wherein the inert gas is inert to the reduced catalyst.

5 . The method for producing the activated catalyst according to claim 2 , wherein the inert gas is selected from the group consisting of nitrogen, neon, helium, argon, krypton, xeon, radon, and a mixture thereof

6 . The method for producing the activated catalyst according to claim 1 , wherein liquid hydrocarbon is saturated or unsaturated hydrocarbon carbon having 5 or more carbons.

7 . The method for producing the activated catalyst according to claim 2 , wherein the inert gas is bubbled for more than 24 hours to eliminate molecular oxygen in liquid hydrocarbon.

8 . The method for producing the activated catalyst according to claim 1 , wherein the catalyst comprises cobalt or iron as an active ingredient.

9 . The method for producing the activated catalyst according to claim 1 , wherein the catalyst is supported by any one support selected from the group consisting of silica, alumina, titania, zeolite, a mesopore carbon structure, a carbon nanotube, mesopore silica, a silica/alumina mixture, a titania/silica mixture and an alumina/titania mixture.

10 . The method for producing the activated catalyst according to claim 8 , wherein the catalyst containing the metal further comprises one or more co-catalyst metals selected from the group consisting of platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru) and rhenium (Re).

11 . A method for preparing liquid or solid hydrocarbon using a Fischer-Tropsch synthesis reaction comprising:
step a for preparing the catalyst for Fischer-Tropsch synthesis, which is activated by the method according to claim 1 ; step b for applying the catalyst, which is activated by the step a, to the Fischer-Tropsch synthesis reactor; and step c of carrying out the Fischer Tropsch synthesis reaction using the activated catalysts.

12 . The method of claim 11 , wherein the Fischer-Tropsch synthesis reaction temperature ranges from 200 to 300° C.

13 . The method of claim 11 , wherein the Fischer-Tropsch synthesis reactor is a tube type fixed-bed reactor.

14 . The method of claim 11 further comprising a step of collecting and storing the activated catalyst, after the step a.

15 . A catalyst for Fischer-Tropsch synthesis which is activated by the method according to claim 1 , wherein the reduced metal catalyst is immersed in liquid hydrocarbon or coated by liquid hydrocarbon.

16 . The catalyst for Fischer-Tropsch synthesis according to claim 15 , wherein the catalyst is in slurry or liquid form.

17 . The method of claim 11 , wherein step a is performed by reducing a catalyst for Fischer-Tropsch synthesis using hydrogen or carbon monoxide-containing reduced gas;
preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated by bubbling an inert gas in liquid hydrocarbon for more than 12 hours; and introducing the reduced catalyst into the liquid hydrocarbon in which a part or all of molecular oxygen is eliminated, without its contact with air.

18 . The method of claim 11 , wherein the catalyst is activated by reducing at a temperature ranging from 300 to 500° C.

19 . The catalyst for Fischer-Tropsch synthesis according to claim 15 , the activated catalyst is prepared by reducing the catalyst for Fischer-Tropsch synthesis using hydrogen or carbon monoxide-containing reduced gas;
preparing liquid hydrocarbon in which a part or all of molecular oxygen is eliminated by bubbling an inert gas in liquid hydrocarbon for more than 12 hours; and introducing the reduced catalyst into the liquid hydrocarbon in which a part or all of molecular oxygen is eliminated, without its contact with air.

20 . The catalyst for Fischer-Tropsch synthesis according to claim 15 , wherein the catalyst is activated by reducing at a temperature ranging from 300 to 500° C.

Assignees

• Korea Res Inst Chemical Tech

Inventors

• Ha Kyoung Su
• Kwak Geun Jae
• Woo Min Hee
• Lee Yun Jo
• Jun Ki Won

Classifications

• C10G2400/22

  Higher olefins · CPC title

• B01J2531/005

  Catalytic metals · CPC title

• C10G2400/20

  C2-C4 olefins · CPC title

• B01J31/02

  containing organic compounds or metal hydrides · CPC title

• B01J23/8913 Primary

  Cobalt and noble metals · CPC title