Catalyst for selective ring-opening reaction and method of using same
The present disclosure provides a catalyst for SRO reactions. The catalyst includes a solid acid material and a metal. In this case, pores of the catalyst corresponding to at least 20% of the total pore volume of the catalyst have a pore size of 10 nm or more. The present disclosure also provides a method of using the catalyst.
1. A catalyst for selective ring-opening (SRO) reactions, the catalyst comprising:
a solid acid material; and
a metal,
wherein pores corresponding to a 50% or more pore volume with respect to the total pore volume of the catalyst have a pore size of 100 nm or more.
2. The catalyst of claim 1 , wherein the solid acid material comprises a first solid acid material and a second solid acid material, the first solid acid material has a pore size of 1 nm or less, and the second solid acid material has a pore size greater than 1 nm.
3. The catalyst of claim 2 , wherein the first solid acid material comprises a zeolite, crystalline aluminosilicate, silica-alumina-phosphate (SAPO), aluminum phosphate (AlPO), a metal organic framework (MOF), or a combination thereof.
4. The catalyst of claim 2 , wherein the second solid acid material comprises silica-alumina (ASA, amorphous silica-alumina), clay, sulfated zirconia, zirconia, titania, niobia, alumina, silica, or a combination thereof.
5. The catalyst of claim 1 , wherein the metal is a Group VIII metal.
6. The catalyst of claim 1 , wherein the catalyst comprises the metal in an amount of 0.05% to 5% by weight with respect to the total weight of the catalyst.
7. The catalyst of claim 2 , wherein the catalyst further comprises a non-acidic binder.
8. The catalyst of claim 7 , wherein the catalyst comprises, with respect to 100 parts by weight of the second solid acid material, 10 to 100 parts by weight of the first solid acid material and 10 to 100 parts by weight of the non-acidic binder.
9. The catalyst of claim 1 , wherein the catalyst further comprises a promoter, and the promoter comprises an alkali metal, an alkaline earth metal, a Group Vb metal, a Group VIb metal, Sn, or a combination thereof.
10. A method of increasing a viscosity index (VI) of a lube base oil, the method comprising:
subjecting a reactant to a SRO reaction in the presence of the catalyst of claim 1 .
11. The method of claim 10 , wherein the reactant comprises:
a feed for preparation of a lube base oil;
an intermediate oil in a lube base oil preparation process; or
a lube base oil.
12. The method of claim 10 , wherein the SRO reaction is carried out in the presence of hydrogen within a temperature range of 100° C. to 450° C.
13. A method of preparing a lube base oil, the method comprising:
a) preparing a feed;
b) introducing the feed into any one of a hydrodewaxing reaction (HDW) or a SRO reaction;
c) introducing the reaction product of step b) into the remaining one of the HDW reaction and the SRO reaction,
wherein the SRO reaction is carried out in the presence of the catalyst of claim 1 .
14. The method of claim 13 , further comprising d) introducing the reaction product of step c) into a hydrofinishing reaction.
15. The method of claim 13 , wherein the VI of the lube base oil prepared by the method of claim 13 is greater than the VI of a lube base oil prepared by a method in which no SRO reaction is carried out by at least 5.