초록 ▼

An object of the present invention is to provide a methanol reforming catalyst, which promotes both the steam reforming reaction and the partial oxidation reaction simultaneously so as to achieve a high methanol conversion rate and suppress the carbon monoxide formation. The present invention provid

An object of the present invention is to provide a methanol reforming catalyst, which promotes both the steam reforming reaction and the partial oxidation reaction simultaneously so as to achieve a high methanol conversion rate and suppress the carbon monoxide formation. The present invention provides a methanol reforming catalyst having an oxide containing a Cu, Zn and Al.

대표청구항 ▼

An object of the present invention is to provide a methanol reforming catalyst, which promotes both the steam reforming reaction and the partial oxidation reaction simultaneously so as to achieve a high methanol conversion rate and suppress the carbon monoxide formation. The present invention provid

An object of the present invention is to provide a methanol reforming catalyst, which promotes both the steam reforming reaction and the partial oxidation reaction simultaneously so as to achieve a high methanol conversion rate and suppress the carbon monoxide formation. The present invention provides a methanol reforming catalyst having an oxide containing a Cu, Zn and Al. rtion and said convexly arcuate tip portion of each meshed pulley tooth providing an engagement surface on the side face of the pulley tooth engaging said curved engagement surface of the meshing belt tooth at two lines, so as to form a gap in the spacing between said root portion and said tip portion between said lines, said pulley tooth having a depth greater than the depth of the belt tooth, said gap being formed substantially midway of the depth of the pulley tooth. 2. A toothed belt power transmission system according to claim 1, wherein the crest of the belt teeth comprises a flat surface. 3. A toothed belt power transmission system according to claim 1, wherein the crest of the belt teeth has a dimple so as to facilitate elastic deformation of the belt tooth when the belt tooth comes in complete mesh with the mating pulley teeth. 4. A toothed belt power transmission system according to claim 1, wherein the convexly arcuate tip portion and concavely arcuate root portion of the belt tooth merge together without forming an angle therebetween, and the concavely arcuate root portion and convexly arcuate tip portion of the pulley tooth merge together without forming an angle therebetween. 5. A toothed belt power transmission system according to claim 4, wherein the convexly arcuate tip portion of the pulley tooth is described by a circular arc, and the concavely arcuate root portion of the belt tooth is described by a circular arc having a radius of curvature slightly greater than that of the circular arc of the convexly arcuate tip portion of the pulley tooth. 6. A toothed belt power transmission system according to claim 1, wherein at the onset of meshing engagement between one belt tooth and a mating pulley tooth, the convexly arcuate tip portion and concavely arcuate root portion of the belt tooth are in sliding contact with the concavely arcuate root portion and convexly arcuate tip portion, respectively, of the pulley tooth so that the confronting engagement surfaces of the belt tooth and pulley tooth partially separate from each other to define therebetween said gap, said gap being open at opposite ends in the transverse direction of the toothed belt. 7. A toothed belt power transmission system according to claim 6, wherein the crest of the belt teeth comprises a flat surface. 8. A toothed belt power transmission system according to claim 6, wherein the crest of the belt teeth has a dimple so as to facilitate elastic deformation of the belt tooth when the belt tooth comes in complete mesh with the mating pulley teeth. 9. A toothed belt power transmission system according to claim 6, wherein the convexly arcuate tip portion and concavely arcuate root portion of the belt tooth merge together without forming an angle therebetween, and the concavely arcuate root portion and convexly arcuate tip portion of the pulley tooth merge together without forming an angle therebetween. 10. A toothed belt power transmission system according to claim 9, wherein the convexly arcuate tip portion of the pulley tooth is described by a circular arc, and the concavely arcuate root portion of the belt tooth is described by a circular arc having a radius of curvature slightly greater than that of the circular arc of the convexly arcuate tip portion of the pulley tooth.