One embodiment is a catalyst for catalytic reforming of naphtha. The catalyst can have a noble metal including one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium, an alkali or alkaline-earth metal, a lanthanide-series metal, and a support. Generally, an average bulk density
One embodiment is a catalyst for catalytic reforming of naphtha. The catalyst can have a noble metal including one or more of platinum, palladium, rhodium, ruthenium, osmium, and iridium, an alkali or alkaline-earth metal, a lanthanide-series metal, and a support. Generally, an average bulk density of the catalyst is about 0.300 to about 1.00 gram per cubic centimeter. The catalyst has a platinum content of less than about 0.375 wt %, a tin content of about 0.1 to about 2 wt %, a potassium content of about 100 to about 600 wppm, and a cerium content of about 0.1 to about 1 wt %. The lanthanide-series metal can be distributed at a concentration of the lanthanide-series metal in a 100 micron surface layer of the catalyst less than two times a concentration of the lanthanide-series metal at a central core of the catalyst.
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1. A reforming process, comprising: a) charging a hydrocarbon feedstock and a hydrogen-rich gas to a reforming zone; andb) contacting the hydrocarbon feedstock and the hydrogen rich gas in a reactor in the reforming zone wherein the catalyst comprises: 1) platinum;2) potassium or lithium;3) cerium;
1. A reforming process, comprising: a) charging a hydrocarbon feedstock and a hydrogen-rich gas to a reforming zone; andb) contacting the hydrocarbon feedstock and the hydrogen rich gas in a reactor in the reforming zone wherein the catalyst comprises: 1) platinum;2) potassium or lithium;3) cerium; and4) a support; wherein an average bulk density of the catalyst is about 0.300 to about 1.00 gram per cubic centimeter, a platinum content less than about 0.6 wt %, a potassium content of about 50 to about 1000 wppm, and a cerium content of about 0.05 to about 2 wt %. 2. The reforming process according to claim 1, further comprising continuously regenerating the catalyst. 3. The reforming process according to claim 1, wherein the platinum content is about 0.25 wt %, the cerium content is about 0.6 wt % and the potassium content is about 300 wppm. 4. The reforming process according to claim 1, wherein the cerium content is about 0.1 to about 0.5 wt %, and the potassium content is about 300 to about 600 wppm. 5. The reforming process according to claim 1, wherein the cerium content is about about 0.25 wt %, and potassium content is about 100 to about 300 wppm. 6. The reforming process according to claim 1, wherein the cerium is distributed at a concentration of the cerium in a 100 micron surface layer of the catalyst less than about two times a concentration of the cerium at a central core of the catalyst. 7. The reforming process according to claim 1, wherein the average bulk density of the catalyst is about 0.550 to about 0.750 gram per cubic centimeter. 8. The reforming process according to claim 1, wherein the catalyst further comprises a Group 14 metal of the Periodic Table. 9. The reforming process according to claim 1, wherein the catalyst further comprises tin. 10. The reforming process according to claim 9, wherein the catalyst comprises no more than about 5%, by weight, tin. 11. The reforming process according to claim 1, wherein the catalyst further comprises a halide. 12. The reforming process according to claim 11, wherein the halide comprises chloride with a content of about 0.8 to about 1.2 wt %. 13. The reforming process according to claim 11, wherein the halide comprises chloride with a content of about less than 1.1 wt %. 14. The reforming process according to claim 1, wherein the support comprises an alumina.
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이 특허에 인용된 특허 (39)
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