화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX)
권호 15권 2호, p.2299
발표분야 촉매 및 반응공학
제목 Study on the catalytic performance of propane steam reforming with La1-xSrxCr1-yMyO3-δ (M = Ni, Fe)
초록 La1-xSrxCr1-yMyO3-δ(M = Ni, Fe) catalysts were synthesized by the sol-gel method. The catalysts were characterized by XRD, SEM, BET and TEM. The performance of catalytic activity in steam reforming of propane at temperature range 600 ~ 800℃ was investigated. The conductivity was measured by the four terminal d.c method in air, 5% H2/N2 and 5% C3H8/N2.
The reaction results were obtained using La1-xSrxCr1-yMyO3-δ (M = Ni, Fe) catalysts under S/C=1.7 and S/C=1 reaction conditions, respectively. In both cases, propane conversion increased with an increase in the amount of added Sr until x=0.3 in the A-site and Ni and Fe until y=0.5 in the B-site. A similar trend was observed for hydrogen yield. Consequently, La0.7Sr0.3Cr0.5Ni0.5O3 catalyst exhibited the best performance under Ni-substitution of which propane conversion was 100 % and hydrogen yield was 95.9 % at 800℃ in the S/C=1.7 condition. The La0.7Sr0.3Cr0.5Fe0.5O3 catalyst exhibited the best performance under Fe-substitution of which propane conversion was 99.6 % and hydrogen yield was 81.8 % at 800℃ in the S/C=1.7 condition.
저자 손정민1, 김재로2
소속 1전북대, 2희성촉매
키워드 propane; steam reforming; perovskite; hydrogen
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