Abstract: A method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system are provided. In one embodiment, apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system includes a low pressure storage vessel coupled to a pressure vessel that defines a high pressure side of the apparatus, where the determination of the amount of catalyst transferred is made on the low pressure side of the apparatus.
Abstract: A method for tuning input/exhaust primaries in a multi-chamber spark ignition internal combustion engine. This method improves engine performance by correlating the timing of wave pulses in the input or exhaust system to combustion events in the combustion chambers. This has the effect of increasing the volumetric efficiency of the engine, resulting in increased brake specific fuel consumption and increased specific volume output.