Additionally, the catalyst can increase the efficiency of spent catalyst reclamation by 250 %.
Spent catalyst is heated by direct contact heat exchange with hot regenerated catalyst.
The spent catalyst may be regenerated to form fresh catalyst, which may then be recycled.
The circulation rate of spent catalyst is automatically controlled based on a circulation rate of regenerated catalyst.
The products of the reactions are separated from the spent catalyst and are sent to a separation system, and the spent catalyst is subjected to steam stripping and regeneration for recycling.
During the dewaxing treatment, the spent wax-containing catalyst is at least partially dewaxed, with dewaxed catalyst particles being produced.
Fresh catalyst is added and worn-out catalyst removed to optimize the cracking process.
An FCC process and apparatus that blends spent and regenerated catalyst before the contacts the feed in a reaction zone.
The processes include introducing spent catalyst particles to a burn zone in a continuous catalyst regenerator.
The rejuvenation includes stripping and regeneration of a spent or partially spent catalyst, followed by impregnation with metals and at least one organic compound.
The rejuvenation includes stripping and regeneration of a spent or partially spent catalyst, followed by impregnation with metals and at least one organic compound.
The first fluid bed comprises a reformer containing catalyst; the second fluid bed comprises a combustor/regenerator which receives spent catalyst and provide heat to heat the catalyst.
A high yield of diphenylbutane can be produced in one step with this catalyst and the used catalyst can be readily separated from the reaction mixture.
The present invention relates to a method of removing a coating, such as a spent catalyst coating, from a carrier such as a metal plate or a honeycomb carrier.
Heating promotes rapid coke combustion, while cooling reduces thermal and hydrothermal deactivation of the spent catalyst.
Spent catalyst from the hydrochlorinator reactor in the productions of 1,1,1trichloroethane.
In both the suspending of polymerization and regeneration of spent catalyst, a 7 weight percent or greater solution of acetic acid in THF has been found to be effective in preserving/restoring catalyst activity.
In another aspect, the invention relates to a method for recovering metals from a deoiled and dried coal liquefaction residue that contains spent catalyst originating from a Group VIB metal sulfide catalyst.
A process for improving flow properties of crude may include processing a first crude stream (5), which may in turn include cracking the first crude stream with fresh catalyst to form a cracked stream (53) and spent catalyst.
A fluidized catalytic cracking process operates with a hot stripper to improve stripping of spent catalyst from the FCC process.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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