Selective nickel based hydrogenation catalyst and the preparation thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-023/888
B01J-021/12
B01J-023/83
B01J-023/85
B01J-023/86
B01J-023/887
B01J-035/10
B01J-037/02
B01J-021/04
B01J-023/78
B01J-037/00
출원번호
US-0456858
(2014-08-11)
등록번호
US-9597668
(2017-03-21)
우선권정보
CN-2007 1 0176670 (2007-11-01)
발명자
/ 주소
Liang, Shunqin
Qian, Ying
Lv, Longgang
Sun, Limin
Zheng, Yundi
Wang, Tinghai
Wu, Jie
Cao, Fengxia
출원인 / 주소
PETROCHINA COMPANY LIMITED
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
0인용 특허 :
32
초록▼
A selective nickel-based hydrogenation catalyst and the preparation thereof, characterized in that: provided that the catalyst is weighed 100%, it comprises nickel oxide 14-20% as active component, lanthanum oxide and/or cerium oxide 2-8%, and VIB element oxide 1-8% as aids, 2-8% silica, 1-8% alkali
A selective nickel-based hydrogenation catalyst and the preparation thereof, characterized in that: provided that the catalyst is weighed 100%, it comprises nickel oxide 14-20% as active component, lanthanum oxide and/or cerium oxide 2-8%, and VIB element oxide 1-8% as aids, 2-8% silica, 1-8% alkaline earth metal oxides, and alumina as the balance. The catalyst specific surface area is 60-150 m2/g, and the pore volume is 0.4-0.6 ml/g. The catalyst has good hydrogenation performance, especially impurity and colloid resistance and hydrogenation stability. The catalyst can be applied to the diolefin selective hydrogenation of medium or low-distillate oil, especially of the full-distillates pyrolysis gasoline.
대표청구항▼
1. A method for preparing a selective nickel-based hydrogenation catalyst, the method comprising: adding silica or its precursor and alkaline earth metal oxide or its precursor into an alumina carrier so as to form a first mixture;calcinating the first mixture at the temperature of 800-1100° C. for
1. A method for preparing a selective nickel-based hydrogenation catalyst, the method comprising: adding silica or its precursor and alkaline earth metal oxide or its precursor into an alumina carrier so as to form a first mixture;calcinating the first mixture at the temperature of 800-1100° C. for 3-6 hours to form a modified alumina carrier;adding soluble salts of nickel, rare earth element and VIB group element into water so as to form a solution;adjusting the pH of the solution to 4-5 following full dissolution of the soluble salts to form an impregnating solution;impregnating the modified alumina carrier with the impregnating solution to form a second mixture;after impregnating, drying the second mixture at the temperature of 40-120° C.; andafter drying, calcinating the second mixture at the temperature of 350-450° C. for 3-6 hours, thereby obtaining the resultant catalyst,wherein the modified alumina carrier is prepared by:adding silica sol, nitric acid and water into alumina hydrate so as to form a third mixture;after kneading and extruding the third mixture, drying the third mixture at the temperature of 40-120° C.;after drying, calcinating the third mixture at the temperature of 300-600° C. for 4-6 hours so as to form a carrier;impregnating the carrier with an impregnating solution formed by adding alkaline earth metal oxide into water;after impregnating, drying the carrier at the temperature of 40-120° C.; andafter drying, calcinating the carrier at the temperature of 800-1100° C. for 4-6 hours, thereby forming the modified alumina carrier. 2. The method according to claim 1, wherein the catalyst comprises a nickel oxide in the amount of 15-19%. 3. The method according to claim 1, wherein the catalyst comprises a lanthanum oxide and/or cerium oxide in the amount of 3-5%. 4. The method according to claim 1, wherein the catalyst comprises an alkaline earth metal selected from the group consisting of magnesium, strontium, and a mixture thereof. 5. The method according to claim 1, wherein the catalyst comprises an alkaline earth metal oxide in the amount of 2-5%. 6. The method according to claim 1, wherein said VIB group element is one or more selected from the group consisting of chromium, molybdenum and tungsten. 7. The method according to claim 1, wherein the VIB group element oxide in the catalyst is in the amount of 3-6%. 8. A method for preparing a selective nickel-based hydrogenation catalyst, the method comprising: adding silica or its precursor and alkaline earth metal oxide or its precursor into an alumina carrier so as to form a first mixture;calcinating the first mixture at the temperature of 800-1100° C. for 3-6 hours to form a modified alumina carrier;adding soluble salts of nickel, rare earth element and VIB group element into water so as to form a solution;adjusting the pH of the solution to 4-5 following full dissolution of the soluble salts to form an impregnating solution;impregnating the modified alumina carrier with the impregnating solution to form a second mixture;after impregnating, drying the second mixture at the temperature of 40-120° C.; andafter drying, calcinating the second mixture at the temperature of 350-450° C. for 3-6 hours, thereby obtaining the resultant catalyst,wherein the resultant catalyst comprise alumina as a carrier, wherein based on the total weight of the catalyst, the catalyst comprises: 14-20% nickel oxide as an active component;1-8% lanthanum oxide and/or cerium oxide;1-8% VIB group element oxide as aids;2-8% silica; and1-8% alkaline earth metal oxide;wherein said catalyst has a specific surface area of 60-150 m2/g and a pore volume of 0.4-0.6 ml/g, andwherein the modified alumina carrier is prepared by: adding silica sol, nitric acid and water into alumina hydrate so as to form a third mixture;after kneading and extruding the third mixture, drying the third mixture at the temperature of 40-120° C.;after drying, calcinating the third mixture at the temperature of 300-600° C. for 4-6 hours so as to form a carrier;impregnating the carrier with an impregnating solution formed by adding alkaline earth metal oxide into water;after impregnating, drying the carrier at the temperature of 40-120° C.; andafter drying, calcinating the carrier at the temperature of 800-1100° C. for 4-6 hours, thereby forming the modified alumina carrier. 9. The method according to claim 8, wherein the nickel oxide in the catalyst is in the amount of 15-19%. 10. The method according to claim 8, wherein the lanthanum oxide and/or cerium oxide in the catalyst is in the amount of 3-5%. 11. The method according to claim 8, wherein said alkaline earth metal is magnesium and/or strontium. 12. The method according to claim 8, wherein the alkaline earth metal oxide in the catalyst is in the amount of 2-5%. 13. The method according to claim 8, wherein said VIB group element is one or more selected from the group consisting of chromium, molybdenum and tungsten. 14. The method according to claim 8, wherein the VIE group element oxide in the catalyst is in the amount of 3-6%.
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