The present invention relates to a solid multicomponent membrane for use in a reactor where the membrane comprises a mixed metal oxide having a structure represented by the formula: La 1−x Ca x (Fe 1−y−y′ Ti y Al y′ ) w O 3−4 wherein x, y, y′,
The present invention relates to a solid multicomponent membrane for use in a reactor where the membrane comprises a mixed metal oxide having a structure represented by the formula: La 1−x Ca x (Fe 1−y−y′ Ti y Al y′ ) w O 3−4 wherein x, y, y′, w, and d each represent a number such that 0.1≦(y+y′)≦0.8, 0.15≦(x+y′) ≦0.95, 0.05≦(x−y)≦0.3, 0.95<w<1, and d equals a number that renders the compound charge neutral and is not less than zero and not greater than about 0.8. Furthermore, the present invention relates to a use of the membrane in a reactor for generating heat or for generating synthesis gas.
대표청구항▼
1. A solid multicomponent membrane for use in a reactor wherein the membrane comprises a mixed metal oxide having a structure represented by the formula: 1−x Ca x ) v (Fe 1−y−y′ Ti y Al y′ ) w O 3−d wherein x, y, y′, w, v and d each represent
1. A solid multicomponent membrane for use in a reactor wherein the membrane comprises a mixed metal oxide having a structure represented by the formula: 1−x Ca x ) v (Fe 1−y−y′ Ti y Al y′ ) w O 3−d wherein x, y, y′, w, v and d each represent a number such that 0.1≦(y+y′)≦0.8, 0.15≦(x+y′)≦0.95, 0.05≦(x−y)≦0.3, 0.95≦w<1, v=1, y′>0 and d equals a number that renders the compound charge neutral and is not less than zero and not greater than about 0.8. 2. The membrane according to claim 1, wherein the x, y, y′, w, v and d each represent a number such that 0.15<(y+y′)<0.75, 0.2<(x+y′)<0.9, 0.05<(x−y)<0.15, 0.95<w<1, and d equals a number that renders the compound charge neutral and is not less than zero and not greater than about 0.8. 3. The membrane according to claim 1, wherein 0<y<0.75 and 0<y′<0.3. 4. In a membrane reactor for generating heat by oxidation of a carbon containing fuel to CO 2 and H 2 O on the oxidation side of the membrane reactor, the improvement which comprises employing a membrane reactor containing the membrane of claim 1. 5. In a method for generating synthesis gas consisting of one or more of the components CO, CO 2 , H 2 and N 2 in a membrane reactor where the reactor is capable of reacting a mixture of steam and a carbon containing fuel with oxygen permeated through said membrane to make synthesis gas, the improvement which comprises employing a membrane reactor containing the membrane of claim 1.
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