| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for executing hydrogenation treatment capable of inhibiting the degradation of a catalyst amidst hydrogenation treatment by a heavy oil direct desulfurizer (RH apparatus), of commensurately extending the life of the catalyst, and of suppressing the energy used for operation by maintaining the operation temperature of the RH apparatus at a low level.SOLUTION: [1] One provided hydrogenation treatment method of a heavy oil is a method for hydrogenating a heavy oil by using a heavy oil direct desulfurizer (RH apparatus) furnished with a hydrogenating desulfurization catalyst, in which a crude oil including a heavy oil is used as a first crude oil fed into the heavy oil direct desulfurizer and in which a second crude oil whose mixing ratio of a fluid catalytic cracking oil residue (CLO) and/or heavy cycle oil (HCO) exceeds 50 vol.% is transmitted through the heavy oil direct desulfurizer (RH apparatus) temporarily or intermittently. [2] Another provided hydrogenation treatment method of a heavy oil is a method for hydrogenating a heavy oil by using a heavy oil direct desulfurizer (RH apparatus) furnished with a hydrogenating desulfurization catalyst, in which an admixture of a heavy oil and a fluid catalytic cracking oil residue (CLO) and/or heavy cycle oil (HCO) accounting for 5-50 vol.% of the total crude oil content is used as a first crude oil fed into the heavy oil direct desulfurizer. |
