| abstract |
1. The method of regenerating a coked metal-containing catalyst, the method includes reacting a coked metal-containing catalyst in a regeneration zone with an atmosphere that contains carbon dioxide and carbon monoxide, where the ratio of the partial pressure of carbon monoxide to the partial pressure of carbon dioxide in the regeneration zone is at least 2.3 : 1, and which contains less than 100 ppm molecular oxygen at a temperature of at least 400 ° C. 2. The method according to claim 1, wherein said atmosphere contains less than 10 ppm molecular oxygen. The method according to any one of the preceding claims, wherein the ratio of the partial pressure of carbon monoxide to the partial pressure of carbon dioxide in the regeneration zone is from about 2.3: 1 to about 100: 1.4. The method of claim 1, wherein the partial pressure of carbon dioxide in the regeneration zone is from about 0.1 to about 40 lbf / in. (from 0.7 to 276 kPa) .5. The method according to claim 1, wherein said temperature is from about 600 ° C to about 900 ° C. The method according to claim 1, further comprising reacting the coked metal-containing catalyst in the regeneration zone with an atmosphere that contains hydrogen at a temperature not lower than 400 ° C, simultaneously with said interaction with said atmosphere containing carbon dioxide and carbon monoxide, or after him. 7. The method of claim 1, wherein the metal contained in said catalyst is selected from the group consisting of molybdenum, tungsten, cobalt, zinc, rhenium, platinum, palladium, and mixtures thereof. The method according to claim 1, in which the metal contained in the specified catalyst includes molybdenum in the form of carb |