Patent ID: 11964262
Assignee: RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 8:
9. The process according to claim 3, wherein in step d, the phosphorus modification treatment comprises: carrying out impregnation and/or ion exchange with at least one phosphorus-containing compound selected from phosphoric acid, diammonium hydrogen phosphate, ammonium dihydrogen phosphate, and ammonium phosphate;
the supporting treatment with the supported metal M1 and the supporting treatment with the supported metal M2 comprises: supporting the supported metal M1 with a compound containing the supported metal M1 and the supported metal M2 with a compound containing the supported metal M2 by impregnation and/or ion exchange in a single batch or in a plurality of batches; and
conditions for the baking treatment comprise: an atmosphere of air atmosphere and/or steam atmosphere, a baking temperature of 400-800° C., and/or a baking duration of 0.5-8 hours.