PASSIVATION OF HEAVY METALS DURING THE CONVERSION OF OILS THAT CONTAIN COKE PRECURSORS AND HEAVY METALS
申请公布号:DE3267762(D1)
申请号:DE19823267762
申请日期:1982.05.10
申请公布日期:1986.01.16
发明人:HETTINGER, WILLIAM P., JR.
分类号:C10G11/02;C10G11/18;(IPC1-7):C10G11/18
主分类号:C10G11/02
摘要:A process for economically converting carbo-metallic oils to lighter products. The carbo-metallic oils contain 650 DEG F. plus material which is characterized by a carbon residue on pyrolysis of at least about 1 and a Nickel Equivalents of heavy metals content of at least about 4 parts per million. This process comprises flowing the carbo-metallic oil together with particulate cracking catalyst through a progressive flow type reactor having an elongated reaction chamber, which is at least in part vertical or inclined, for a predetermined vapor riser residence time in the range of about 0.5 to about 10 seconds, at a temperature of about 900 DEG to about 1400 DEG F., and under a pressure of about 10 to about 50 pounds per square inch absolute sufficient for causing a conversion per pass in the range of about 50% to about 90% while producing coke in amounts in the range of about 6 to about 14% by weight based on fresh feed, and laying down coke on the catalyst in amounts in the range of about 0.3 to about 3% by weight. The spent, coke-laden catalyst is separated from the stream of hydrocarbons formed by vaporized feed and resultant cracking products and regenerated in one or more regeneration beds in one or more regeneration zones by burning the coke on the spent catalyst with oxygen. The regenerated catalyst is recycled to the reactor and contacted with fresh carbo-metallic oil. Compounds of aluminum, silicon, zirconium or titanium or a mixture of two or more of those metal compounds is added to the catalyst in an amount and in a form sufficient to reduce the amount of gas formation caused by heavy metals deposited on the catalyst during the conversion reaction.
REMOTE COORDINATE INPUT DEVICE
MONOLITHIC SEMICONDUCTOR CERAMIC FOR POSITIVE CHARACTERISTIC THERMISTOR
CORRECTION METHOD OF POSITIONAL DATA
MAGNETIC RECORDING AND REPRODUCING DEVICE AND ITS OPERATING METHOD
DISMANTLING METHOD OF MEMBER FOR PREVENTING SPREAD OF FIRE
LOCKING STRUCTURE BETWEEN JOINT BOX BODY AND COVER
LIQUID CRYSTAL IMAGE DISPLAY DEVICE AND ITS PRODUCTION
X-RAY MASK AND MANUFACTURE THEREOF