Abstract:
A composition for promoting the oxidation of CO and minimizing NOx emissions during FCC processes comprises (i) acidic oxide support, (ii) at least one precious metal for promoting CO oxidation, and (iii) metals or metal oxides capable of reducing NOx production during CO oxidation, at least one precious metal (ii) being primarily distributed in the central interior of particulate additive and the metals or metal oxides (iii) being primarily distributed in the particulate additive as a shell around the precious metal.
Abstract:
A fluid catalytic cracking catalyst is provided with a high porosity by in-situ crystallizing an aluminosilicate zeolite from a reactive microsphere comprising metakaolin and hydrous kaolin. Any calcination of the reactive microsphere before reaction with a zeolite-forming solution is done at low temperatures so as to ensure the hydrous kaolin is not converted to metakaolin.
Abstract:
A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. Methods of making and using the cracking catalyst are also described.
Abstract:
The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.
Abstract:
The invention relates to a system and a method for tracking and executing a job comprising a series of tasks. Each task is executable on a separate computing device. The method comprises: utilizing a workload manager to identify an initial schedule of implementation for the job; utilizing agents to selectively control execution of the tasks; and for each agent, utilizing a publish/subscription interface to isolate communications of the workload manager from each agent and to communicate with other publish/subscription interfaces of other agents to determine when to activate its task. The interface utilizes a broker adapted to communicate with other brokers to disseminate communications amongst the agents.
Abstract:
The invention relates to a system and a method for tracking and executing a job comprising a series of tasks. Each task is executable on a separate computing device. The method comprises: utilizing a workload manager to identify an initial schedule of implementation for the job; utilizing agents to selectively control execution of the tasks; and for each agent, utilizing a publish/subscription interface to isolate communications of the workload manager from each agent and to communicate with other publish/subscription interfaces of other agents to determine when to activate its task. The interface utilizes a broker adapted to communicate with other brokers to disseminate communications amongst the agents.
Abstract:
The present invention provides a catalyst mixture comprising FCC catalysts and a metal passivator/trap and use thereof in trapping metal contaminants during the catalytic cracking of hydrocarbon feedstocks.
Abstract:
A cracking catalyst contains a substantially inert core and an active shell, the active shell containing a zeolite catalyst and a matrix. The catalyst is formed by spray-drying a slurry containing water, substantially inert microspheres and a zeolite precursor and crystallizing zeolite in the active shell to create the cracking catalyst. Methods of using the cracking catalyst are also described.