Hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons
This invention relates to a hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons derived from oil, which includes (i) beta-zeolite, (ii) pseudo-boehmite, and (iii) one or more metals selected from among metals of Groups VIII and VIB, and which further includes a cocatalyst component, thereby producing a maximum amount of BTX (Benzene, Toluene, Xylene) from LCO (Light Cycle Oil).
1. A hydrocracking catalyst for preparing light aromatic hydrocarbons from polycyclic aromatic hydrocarbons, comprising:
(i) beta-zeolite;
(ii) pseudo-boehmite;
(iii) one or more metals selected from the group consisting of cobalt and molybdenum,
(iv) cocatalyst comprising 0.01-10 wt % of tin (Sn) based on a total weight of the catalyst.
2. The hydrocracking catalyst of claim 1 , wherein cobalt or molybdenum is in the form of a sulfide.
3. The hydrocracking catalyst of claim 1 , wherein a total Si/Al atom ratio of the beta-zeolite is in a range of 5-200.
4. The hydrocracking catalyst of claim 3 , wherein the total Si/Al atom ratio of the beta-zeolite is in the range of 10-150.
5. The hydrocracking catalyst of claim 1 , wherein an amount of the beta-zeolite is 10-95 wt % based on a total weight of the catalyst.
6. The hydrocracking catalyst of claim 5 , wherein the amount of the beta-zeolite is 30-90 wt % based on the total weight of the catalyst.
7. The hydrocracking catalyst of claim 1 , wherein an amount of cobalt is 0.1-20 wt % based on a total weight of the catalyst.
8. The hydrocracking catalyst of claim 7 , wherein an amount of cobalt is 1-10 wt % based on a total weight of the catalyst.
9. The hydrocracking catalyst of claim 1 , wherein the amount of tin is 0.5-5 wt % based on the total weight of the catalyst.
10. The hydrocracking catalyst of claim 1 , wherein the amount of molybdenum is 0.1-20 wt % based on a total weight of the catalyst.
11. The hydrocracking catalyst of claim 10 , wherein the amount of molybdenum is 1-10 wt % based on the total weight of the catalyst.