CATALYST, CATALYST PRECURSOR, AND CATALYST CARRIER
원문보기
IPC분류정보
국가/구분
United States(US) Patent
공개
국제특허분류(IPC7판)
B32B-005/16
B01J-032/00
B01J-037/00
C07C-001/04
C07C-001/00
출원번호
US-0016692
(2008-01-18)
공개번호
US-0262115
(2008-10-23)
우선권정보
EP-07100746.2(2007-01-18)
발명자
/ 주소
Calis,Hans Peter Alexander
Verbist,Guy Lode Magda Maria
출원인 / 주소
Calis,Hans Peter Alexander
Verbist,Guy Lode Magda Maria
대리인 / 주소
SHELL OIL COMPANY
인용정보
피인용 횟수 :
0인용 특허 :
0
초록▼
A catalyst, catalyst precursor, or catalyst carrier formed as an elongated shaped particle having a cross section comprising three protrusions each extending from and attached to a central position. The central position is aligned along the longitudinal axis of the particle. The cross-section of th
A catalyst, catalyst precursor, or catalyst carrier formed as an elongated shaped particle having a cross section comprising three protrusions each extending from and attached to a central position. The central position is aligned along the longitudinal axis of the particle. The cross-section of the particle occupies the space encompassed by the outer edges of six outer circles around a central circle, each of the six outer circles contacting two neighbouring outer circles, the particle occupying three alternating outer circles equidistant to the central circle and the six interstitial regions, the particle not occupying the three remaining outer circles which are between the alternating occupied outer circles. The ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1, and the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1. The ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than the ratio of the diameter of the central circle to the diameter of the outer occupied circle.
대표청구항▼
What is claimed is: 1. A catalyst carrier formed as an elongated shaped particle having a cross section comprising three protrusions each extending from and attached to a central position, wherein the central position is aligned along the longitudinal axis of the particle, the cross-section of the
What is claimed is: 1. A catalyst carrier formed as an elongated shaped particle having a cross section comprising three protrusions each extending from and attached to a central position, wherein the central position is aligned along the longitudinal axis of the particle, the cross-section of the particle occupying the space encompassed by the outer edges of six outer circles around a central circle, each of the six outer circles contacting two neighbouring outer circles, the particle occupying three alternating outer circles equidistant to the central circle and the six interstitial regions, the particle not occupying the three remaining outer circles which are between the alternating occupied outer circles; wherein the ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1 and the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1; and wherein the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than the ratio of the diameter of the central circle to the diameter of the outer occupied circle. 2. A catalyst carrier according to claim 1, wherein the ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1.2. 3. A catalyst carrier according to claim 1, wherein the ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1.35. 4. A catalyst carrier according to claim 1, wherein the ratio of the diameter of the central circle to the diameter of the outer occupied circle is less than about 2.5. 5. A catalyst carrier as claimed in claim 1, wherein the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1.3. 6. A catalyst carrier as claimed in claim 1, wherein the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1.5. 7. A catalyst carrier as claimed in claim 1, wherein the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is less than about 2.0. 8. A catalyst carrier as claimed in claim 1, wherein each outer circle tangentially contacts the central circle. 9. A catalyst carrier as claimed in claim 1, wherein said contact between each outer circle and two neighbouring circles is tangential. 10. A catalyst carrier as claimed in claim 1, wherein the nominal diameter of the particle is 0.5-6 mm. 11. A catalyst carrier as claimed in claim 1, wherein the particles have a length/diameter ratio (L/D) of between 1 and 10. 12. A catalyst comprising a catalyst carrier as claimed in claim 1, and a catalytically active metal or precursor therefor supported on the catalyst carrier; wherein the catalytically active metal is selected from elements of Group VIII of the Periodic Table of the Elements. 13. A catalyst as claimed in claim 12, wherein the catalyst carrier comprises a porous refractory metal oxide. 14. A hydrocracking catalyst comprising a metal having hydrogenation activity, and supported on a catalyst carrier as defined in claim 1 and comprising an acidic function. 15. A process for the production of liquid hydrocarbons from synthesis gas, the process comprising: converting synthesis gas in a reactor into liquid hydrocarbons, at elevated temperatures and pressures; using a catalyst carrier as claimed in claim 1. 16. A method of manufacturing a catalyst carrier comprising: (a) mixing a catalyst carrier comprising a carrier such as a refractory metal oxide or precursors thereof with a liquid to form a paste; (b) adding said paste to an extruder, the extruder having a die plate comprising one or more dies, each die having a plurality of apertures; (c) extruding the paste through said apertures to form catalyst carrier extrudates; (d) wherein the apertures define a cross sectional shape comprising three protrusions each extending from and attached to a central position, wherein the central position is aligned along the longitudinal axis of the particle, the cross-section of the particle occupying the space encompassed by the outer edges of six outer circles around a central circle, each of the six outer circles contacting two neighbouring outer circles, the particle occupying three alternating outer circles equidistant to the central circle and the six interstitial regions, the particle not occupying the three remaining outer circles which are between the alternating occupied outer circles; wherein the ratio of the diameter of the central circle to the diameter of the outer occupied circle is more than 1 and the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than 1; and wherein the ratio of the diameter of the outer unoccupied circle to the diameter of the outer occupied circle is more than the ratio of the diameter of the central circle to the diameter of the outer occupied circle. 17. A method of manufacturing a catalyst or catalyst precursor comprising: a method as claimed in claim 16, wherein an active metal or active metal precursor is mixed with the catalyst carrier in step (a) to form a paste.
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