Abstract: Method and apparatus for transporting particulate material through a pipeline. The particles have a size distribution which provides a solids density of at least 85%. The particular have a maximum size of 20% of the bore.

Abstract: A slurry pump having a pair of cylinders aligned one on either side of a centrally-disposed oscillating-deflector element; each cylinder has a housing in which are defined co-axial, registering hydraulic and slurry cylinder bores, and a piston rod having, at one end thereof a hydraulic piston head slidably movable within the hydraulic cylinder bore and having, at its other end a slurry piston head slidably movable within the slurry cylinder bore.

Abstract: A hydro-pressurized fluidized bed combustor having an uptanding shell and an entry at its bottom for admission of feedstock. The feedstock passes through a conduit surrounded by a heat exchanger. Inside the shell an entry conduit is outwardly flared in the upward direction to furnish a controlled expansion entry feeding into the fluidized bed. The entry conduit has a plurality of tuyeres in its peripheral wall. An injector pump feeds the feedstock into the entry. A weir above the entry conduit keeps the height of the bed constant within the combustion during operation.

Abstract: A hydro-pressurized fluidized bed combustor having an upstanding shell and only a single entry at its bottom for admission of feedstock. Inside the shell an entry conduit is outwardly flared in the upward direction to furnish a controlled expansion entry feeding into the fluidized bed. An injector pump feeds the feedstock into the single entry.