Kinetic Study of Zirconia-Alumina-Supported Ni-Fe Catalyst for Dry Reforming of Methane: Impact of Partial Pressure and Reaction Temperature

Table 1

The catalytic activity results at a different partial pressure of feed gas during 700, 750, and 800°C reaction temperatures.

Entries	Temp. (°C)				K(×10^−3)	%	%	H2/CO	(×10^−3)	(×10^−3)	(×10^−3)	(×10^−3)	(×10^−3)	(×10^−3)	(×10^−3)
1	700	43.43	14.48	43.43	9.5	39.21	82.24	1.4	288.5	2.43	201.7	1.7	663.8	490.2	—
2		43.43	21.71	36.19	4.7	36.12	70.83	0.94	265.8	2.24	260.6	2.2	536.7	526.3	—
3		43.43	28.95	28.95	3.5	36.75	62.18	0.82	270.4	2.28	305.0	2.6	506.2	575.4	34.6
4		43.43	57.9	0	2.6	43.44	46.57	0.86	319.6	2.69	456.8	3.9	502.0	776.5	137.2
5		14.48	43.43	43.43	2.6	80.06	34.54	0.72	196.3	1.65	254.1	2.1	334.9	450.5	57.8
6		21.71	43.43	36.19	4.2	69.75	44.84	0.93	256.6	2.16	329.9	2.8	439.9	586.5	73.3
7		28.95	43.43	28.95	3.6	55.78	48.43	0.79	273.6	2.31	356.3	3.0	464.5	629.9	82.7
8		57.9	43.43	0	6.9	43.08	60.28	0.94	422.6	3.56	443.5	3.7	824.3	866.1	20.9
9		50.66	50.66	0	4.8	43.34	52.51	0.82	380.6	3.21	450.7	3.8	691.1	831.3	70.1
10	750	43.43	14.48	43.43	17.7	46.325	95.1	1.86	340.8	2.87	233.2	2.0	789.3	574.1	—
11		43.43	21.71	36.19	15.1	49.95	89.62	1.41	367.5	3.10	329.7	2.8	772.8	697.2	—
12		43.43	28.95	28.95	13.3	52.765	87.44	1.2	388.2	3.27	428.9	3.6	735.8	817.1	40.7
13		43.43	57.9	0	10.9	65.785	53.41	0.8	484.0	4.08	523.9	4.4	928.1	1008.0	39.9
14		14.48	43.43	43.43	6.2	98.31	35.95	0.85	241.1	2.03	264.5	2.2	458.8	505.6	23.4
15		21.71	43.43	36.19	14.7	96.63	55.18	1.13	355.5	3.00	406.0	3.4	660.4	761.5	50.5
16		28.95	43.43	28.95	20.8	89.81	69.31	1.3	440.5	3.71	509.9	4.3	811.6	950.5	69.4
17		57.9	43.43	0	22.3	61.29	87.58	1.23	601.3	5.07	644.4	5.4	1159.4	1245.6	43.1
18		50.66	50.66	0	18.7	67.03	74.55	1.07	575.4	4.85	639.9	5.4	1086.2	1215.3	64.5
19	800	43.43	14.48	43.43	7.9	35.65	95.66	1.2	262.3	2.21	234.6	2.0	552.3	496.9	—
20		43.43	21.71	36.19	11.3	45.2	93.13	1.24	332.6	2.80	342.6	2.9	655.1	675.2	10.0
21		43.43	28.95	28.95	16.2	55.78	91.55	0.99	410.4	3.46	449.0	3.8	782.1	859.4	38.7
22		43.43	57.9	0	3.4	55.775	91.55	0.99	410.4	3.46	898.1	7.6	333.0	1308.5	487.7
23		14.48	43.43	43.43	6.2	98.5	43.815	0.62	241.6	2.04	322.4	2.7	402.3	563.9	80.8
24		21.71	43.43	36.19	15.7	98.19	60.08	0.86	361.2	3.04	442.0	3.7	641.6	803.2	80.8
25		28.95	43.43	28.95	25.9	95.295	74.615	1.1	467.4	3.94	549.0	4.6	853.3	1016.4	81.6
26		57.9	43.43	0	43.6	78.75	90.53	1.16	772.5	6.51	666.1	5.6	1651.5	1438.6	—
27		50.66	50.66	0	23.7	71.59	89.01	1.12	614.5	5.18	764.0	6.4	1079.5	1378.5	149.5

Abbreviation and unit: (1) P: pressure; kPa (2) K: equilibrium constant of DRM; (kPa)² (3) C: conversion (4) R: rate of consumption; mol/g_cat/h (5) RA: arial rate; mol/m²/h (6) R: rate of formation; mol/g_cat/h.