Abstract: Techniques for large-scale Lagrangian monitoring of an aquatic resource are presented. The techniques use a system that includes an autonomous surface vehicle, where the autonomous surface vehicle includes: an electronic controller; a power source coupled to the electronic controller; a plurality of sensors communicatively coupled to the electronic controller, the plurality of sensors including: a water quality sensor and a GPS sensor; and a propulsion system communicatively coupled to the electronic controller, the propulsion system including a thruster and at least one rudder; where the system determines a velocity of water in the aquatic resource based on a plurality of position signals from the GPS sensor.

Abstract: Disclosed is an offshore energy generation system (OEGS) that eliminates greenhouse gas emissions during operation, mitigating earthquake and tsunami impacts, and nuclear meltdown safety. The OEGS comprises a floating facility configured for dynamic positioning to a target site via a system that is communicably coupled to the floating facility. The floating facility is coupled to seawater collection system; steam generation system; electric power generation system that uses at least one of: steam, nuclear fission, nuclear fusion or hydrogen fuel cells for generating electric power; ammonia, freshwater, nitrogen and hydrogen generation systems, cooling water system, electric power, freshwater, and ammonia export systems, multiple offshore cranes, living quarters and helideck; automation, control and safety system for controlling one or more components. The OEGS is effective, affordable and a reliable solution for climate change as it delivers clean energy in the form of electricity, ammonia and/or freshwater.

Abstract: Disclosed is an Offshore Energy Generation System (OEGS), zero greenhouse gases emissions during operations, earthquake and tsunami proof, nuclear meltdown safe, floating ship-shaped, moored. The INVENTION delivers clean energy in the form of electricity and/or ammonia (NH3) and freshwater to offshore or onshore consumers. The INVENTION is effective, affordable and reliable solution for the global climate change and the freshwater scarcity crisis. By deploying this INVENTION across the world, the net zero emissions targets from IPCC can be achieved and the water scarcity crisis mitigated. The INVENTION enables better safety of the population served, optimal use of land, eliminate land use conflicts and enables the protection of the world cultural heritage.

Abstract: A process for producing light olefins from oxygenates wherein internal reactor are protected from metal-catalyzed coking preferably by employing a protective layer.

Abstract: An FCC process and apparatus that blends spent and regenerated catalyst before the catalyst contacts the feed in a reaction zone. The circulation rate of spent catalyst is automatically controlled based on a circulation rate of regenerated catalyst.

Abstract: An FCC process and apparatus that blends spent and regenerated catalyst before the catalyst contacts the feed in a reaction zone. The circulation rate of spent catalyst is automatically controlled based on a circulation rate of regenerated catalyst.

Abstract: An FCC process and apparatus that blends spent and regenerated catalyst before the catalyst contacts the feed in a reaction zone. The circulation rate of spent catalyst is automatically controlled based on a circulation rate of regenerated catalyst.

Abstract: An FCC process and apparatus that blends spent and regenerated catalyst before the catalyst contacts the feed in a reaction zone. The circulation rate of spent catalyst is automatically controlled based on a circulation rate of regenerated catalyst.

Abstract: Wash water is used to remove impurities such as hydrogen sulfide, ammonia, and hydrogen cyanide from light hydrocarbons and gases derived from refinery fluid catalytic cracking operations. The present invention is a process of low pressure recirculation of wash water combined with low pressure removal of waste water which results in the efficient removal of the above impurities at significantly reduced wash water rates.

Abstract: In an etherification process that uses an FCC effluent as a source of isoolefins, the buildup of nitrites in an alcohol-containing stream that is recycled to the etherification zone is prevented by dragging at least a portion of a water-containing stream produced by a water washing of the FCC effluent and returning the water-containing stream to the FCC gas concentration zone. As a result, the etherification catalyst deactivation rate is reduced and without increasing the net amount of fresh water employed by the process combination.

Abstract: This FCC process suspends a layer of catalyst in a riser outside an FCC reactor vessel at a location above a primary riser outlet. The density at the riser outlets is higher than the flowing density in the riser. The suspended catalyst provides a disengagement zone that enhances the separation of catalyst from product vapors. The riser operates in a manner that prevents any discharge of catalyst from its end. The arrangement also provides a convenient method for venting stripping vapors into a closed reactor cyclone system.

Abstract: A procedure for the separation of arsenic from fluorite by means of magnetization and flotation of the pyrites present in the fluorite ore, and in which arsenic is associated, irrespectively of the chemical form in which said arsenic is present.