Direct Conversion of Blast Furnace Gas to Dimethyl Ether over Cu-ZnO-Ga_2O_3/γ-Al_2O_3 Hybrid Catalyst : Optimum Mass Ratio of the Catalyst

この論文にアクセスする

この論文をさがす

著者

抄録

The objective of this study is to develop a catalyst in a packed-bed reactor for direct synthesis of dimethyl ether ((CH<sub>3</sub>)<sub>2</sub>O, DME) from blast furnace offgas (CO-CO<sub>2</sub>-H<sub>2</sub>-N<sub>2</sub>, BFG). Physically-admixed (hybrid) catalysts of Cu-ZnO-Ga<sub>2</sub>O<sub>3</sub> for CH<sub>3</sub>OH synthesis and γ-Al<sub>2</sub>O<sub>3</sub> for its dehydration were experimentally studied, in which the influence of mixing ratio of the two catalysts on both yield and selectivity of DME was mainly examined for the same catalyst mass. The results showed that the developed hybrid catalyst is very effective in producing DME directly from BFG without equilibrium limit of methanol. Interestingly, the yield of DME had a significant dependence of mixing ratio, and the hybrid catalyst with only 5 mass% γ-Al<sub>2</sub>O<sub>3</sub> showed the highest yield with 99.3 % selectivity of DME+methanol. This implies that methanol formation governs the rate of this series reaction (BFG→CH<sub>3</sub>OH→DME) due to fast dehydration of methanol to DME.

収録刊行物

  • ISIJ international

    ISIJ international 37(5), 531-535, 1997-05-15

    The Iron and Steel Institute of Japan

参考文献:  9件中 1-9件 を表示

  • <no title>

    AKIYAMA T.

    ISIJ Int. 33, 1136, 1993

    被引用文献7件

  • <no title>

    MURAMATSU A.

    ISIJ Int. 33, 1144, 1993

    被引用文献6件

  • <no title>

    SATO H.

    J. Jpn. Pet. Inst. 38, 390, 1995

    被引用文献2件

  • <no title>

    SATO H.

    Ph. D. Thesis, Tohoku University, 1996

    被引用文献2件

  • <no title>

    OHNO Y.

    Personal communication, 1996

    被引用文献2件

  • <no title>

    HOVER H.

    Ullman's Encyclopedia of Industrial Chemistry A8, 541, 1989

    被引用文献1件

  • <no title>

    SOFIANOS A. C.

    Eng. Chem. Res. 30, 2372, 1991

    被引用文献1件

  • <no title>

    HAN Y.

    J. Jpn. Inst. Energy 75(1), 42, 1996

    被引用文献1件

  • <no title>

    FUJIMOTO K.

    Ind. Eng. Chem. Prod. Res. Dev. 25, 262, 1986

    被引用文献3件

各種コード

ページトップへ