Table 1. Results of HDN Reaction Residue Oil on Catalysts.

catalyst	H/C	S (%)	N (%)	HDS (%)	HDN (%)
crude oil	1.64	1.40	0.34
P = 0	1.68	0.604	0.180	56.9	47.1
P = 3.0	1.73	0.471	0.133	66.4	60.9
P = 3.4	1.71	0.440	0.117	68.6	65.6
P = 3.8	1.69	0.439	0.128	68.6	62.4
P = 4.2	1.68	0.418	0.140	70.1	58.8