Low Temperature Gasification of Coconut Shell with CO₂ and KOH: Effects of Temperature, Chemical Loading, and Introduced Carbonization Step on the Properties of Syngas and Porous Carbon Product

Table 3

Yields and composition of produced gas under various gasification conditions (see Table 1 for sample code).

Sample; ID	Gas yield (%)	Gas composition (mmol/g)					Gas composition (%w)						Heating value
		H2	CO	CO2	C3H8	CH4	H2	CO	CO2	C3H8	CH4	Other	MJ/kg gas	MJ/kg of coconut shell
G01	26.22	0.53	1.54	2.62	0.00	0.35	0.40	16.40	43.97	0.00	2.16	37.07	3.2	0.84
G02	26.97	1.58	2.19	2.81	0.38	1.12	1.17	22.74	45.85	6.16	6.67	17.41	10.0	2.68
G03	27.22	1.23	2.98	3.56	0.38	0.76	0.91	30.68	57.57	6.12	4.44	0.28	9.3	2.53
G04	28.57	1.25	2.43	4.38	0.57	0.49	0.81	22.06	62.42	8.15	2.56	4.00	8.3	2.38
G05	29.25	3.28	6.24	2.14	0.44	1.22	1.83	48.74	26.26	5.38	5.43	12.36	12.4	3.62
G06	16.15	8.23	0.89	1.18	0.44	0.64	10.20	15.45	32.15	11.85	6.37	23.98	22.6	3.64
G07	9.10	0.88	0.71	1.51	0.00	0.07	1.92	21.76	72.82	0.15	1.15	2.20	5.1	0.47
G08	12.55	1.03	2.43	0.78	0.01	0.03	1.65	54.24	27.36	0.18	0.38	16.19	7.7	0.97
G09	17.17	0.85	4.13	0.69	0.02	0.98	0.99	67.35	17.68	0.46	9.17	4.35	12.8	2.20
G10	17.86	1.23	2.98	3.10	0.38	0.76	0.91	30.70	50.16	6.12	4.44	7.67	9.3	1.66
G11	7.95	7.16	0.10	0.75	0.03	0.23	18.18	3.63	42.04	1.60	4.71	29.84	25.2	2.01
G12	7.46	7.49	0.10	0.96	0.03	0.20	20.29	3.80	57.44	1.48	4.25	12.74	27.5	2.05
G13	7.42	7.97	0.11	1.14	0.02	0.17	21.58	4.19	67.78	1.34	3.69	1.42	28.7	2.13
G14	7.90	8.67	0.05	0.82	0.07	0.18	22.22	1.82	45.97	3.80	3.73	22.46	30.4	2.40
G15	7.99	11.11	0.05	0.04	0.30	0.00	27.90	1.81	2.31	16.50	0.00	51.48	41.4	3.31
G16	7.82	11.73	0.06	0.00	0.10	0.29	29.23	2.03	0.00	5.39	5.75	57.60	40.6	3.17