C12A7-Mg催化剂水蒸汽重整生物油、石脑油和CH4制氢

利用自制的C12A7-Mg催化剂,研究了催化水蒸汽重整生物油、石脑油和CH4制备氧气的性能,以及催化剂寿命,并用X射线光电子能谱对催化剂进行了表征．温度测试范围为250-850℃．对于催化水蒸汽重整生物油反应,在750℃时,氢气产率最大达到80％,碳的转化率接近95％．在相同的反应温度下,催化水蒸汽重整石脑油和CH4的氢气产率和碳的转化率要低于重整生物油反应．催化剂的失活主要是由于重整过程中的积碳．     

C12A7-Mg催化剂水蒸汽重整生物油、石脑油和CH4制氢

Hydrogen production by catalytic steam reforming of the bio-oil, naphtha, and CH4 was investigated over anovel metal-doped catalyst of (Ca24Al28O64)4+￠4O-/Mg (C12A7-Mg). The catalytic steam reforming wasinvestigated from 250 to 850 ±C in the ˉxed-bed continuous °ow reactor. For the reforming of bio-oil, theyield of hydrogen of 80% was obtained at 750 ±C, and the maximum carbon conversion is nearly close to95% under the optimum steam reforming condition. For the reforming of naphtha and CH4, the hydrogenyield and carbon conversion are lower than that of bio-oil at the same temperature. The characteristics ofcatalyst were also investigated by XPS. The catalyst deactivation was mainly caused by the deposition ofcarbon in the catalytic steam reforming process.