Abstract: The present disclosure relates to a porous ceramic media that may include a chemical composition, a phase composition, a total open porosity content of at least about 10 vol. % and not greater than about 70 vol. % as a percentage of the total volume of the ceramic media, and a nitric acid resistance parameter of not greater than about 500 ppm. The chemical composition for the porous ceramic media may include SiO2, Al2O3, an alkali component and a secondary metal oxide component selected from the group consisting of an Fe oxide, a Ti oxide, a Ca oxide, a Mg oxide and combinations thereof. The phase composition may include an amorphous silicate, quartz and mullite.

Abstract: The present disclosure relates to a porous ceramic media that may include a chemical composition, a phase composition, a total open porosity content of at least about 10 vol. % and not greater than about 70 vol. % as a percentage of the total volume of the ceramic media, and a nitric acid resistance parameter of not greater than about 500 ppm. The chemical composition for the porous ceramic media may include SiO2, Al2O3, an alkali component and a secondary metal oxide component selected from the group consisting of an Fe oxide, a Ti oxide, a Ca oxide, a Mg oxide and combinations thereof. The phase composition may include an amorphous silicate, quartz and mullite.

Abstract: The present disclosure relates to a porous ceramic media that may include a chemical composition, a phase composition, a total open porosity content of at least about 10 vol. % and not greater than about 70 vol. % as a percentage of the total volume of the ceramic media, and a nitric acid resistance parameter of not greater than about 500 ppm. The chemical composition for the porous ceramic media may include SiO2, Al2O3, an alkali component and a secondary metal oxide component selected from the group consisting of an Fe oxide, a Ti oxide, a Ca oxide, a Mg oxide and combinations thereof. The phase composition may include an amorphous silicate, quartz and mullite.

Abstract: A catalyst carrier may have a cross-sectional shape that may include a plurality of surface channels having a first channel width and a second channel width, where the first channel width may be closer to a periphery of the cross-sectional shape than the second channel width and the first channel width may be less than the second channel width. The cross-sectional shape may further include a plurality of surface features where at least one surface feature is located between at least one pair of surface channels. The cross-sectional shape may further include a ratio LOC/LSCP of at least about 1.7, where LOC is a length of a total contour of the cross-sectional shape and LSCP is a length of an outer simple convex perimeter of the cross-sectional shape.

Abstract: A conveyor system and method for cascaded accumulation on a series of in-line roller belts. An accumulation system comprises a series of roller belts that can be actuated in contiguous zones to accelerate conveyed articles forward at twice the belt speed. When articles start to accumulate on the accumulation conveyor, the belt rollers are deactuated downstream to upstream zone by zone. Then the belts are stopped as they fill with accumulated articles. The process is repeated in cascade for the upstream roller belts as articles continue to accumulate.

Abstract: A catalyst carrier may have a cross-sectional shape that may include a plurality of surface channels having a first channel width and a second channel width, where the first channel width may be closer to a periphery of the cross-sectional shape than the second channel width and the first channel width may be less than the second channel width. The cross-sectional shape may further include a plurality of surface features where at least one surface feature is located between at least one pair of surface channels. The cross-sectional shape may further include a ratio LOC/LSCP of at least about 1.7, where LOC is a length of a total contour of the cross-sectional shape and LSCP is a length of an outer simple convex perimeter of the cross-sectional shape.

Abstract: A conveyor system and method for cascaded accumulation on a series of in-line roller belts. An accumulation system comprises a series of roller belts that can be actuated in contiguous zones to accelerate conveyed articles forward at twice the belt speed. When articles start to accumulate on the accumulation conveyor, the belt rollers are deactuated downstream to upstream zone by zone. Then the belts are stopped as they fill with accumulated articles. The process is repeated in cascade for the upstream roller belts as articles continue to accumulate.

Abstract: A center pivot sprinkler system includes a sprinkler arm to be mounted at a pivot point at a first end of the sprinkler arm, the sprinkler arm defining a water conduit. A motive source can move the sprinkler arm in a circular motion about the pivot point. An end nozzle is supported at a second end of the sprinkler arm, and in fluid communication with the water conduit. A control valve is positioned between the water conduit and the end nozzle, and a control valve positioner can position the control valve. A position determining device determines the position of the end nozzle in a circular arc about the pivot point. A processor polls the position determining device to determine a then-current position of the end nozzle and determines a flow of water to be issued from the end nozzle as a function of the then-current position of the end nozzle.

Abstract: A center pivot sprinkler system includes a sprinkler arm to be mounted at a pivot point at a first end of the sprinkler arm, the sprinkler arm defining a water conduit. A motive source can move the sprinkler arm in a circular motion about the pivot point. An end nozzle is supported at a second end of the sprinkler arm, and in fluid communication with the water conduit. A control valve is positioned between the water conduit and the end nozzle, and a control valve positioner can position the control valve. A position determining device determines the position of the end nozzle in a circular arc about the pivot point. A processor polls the position determining device to determine a then-current position of the end nozzle and determines a flow of water to be issued from the end nozzle as a function of the then-current position of the end nozzle.

Abstract: A sprinkler which is controllable to provide water to an area to be sprinkled includes a sprinkler head to move between a first position and a second position. The sprinkler further includes a sprinkler head positioner to move the sprinkler head between the first and second positions, a sprinkler head position determiner to determine a current sprinkler head position between the first and second positions, a flow control valve to control flow of water from a water supply to the sprinkler head, a flow control valve positioner to establish a current control valve position for the flow control valve between an essentially fully closed control valve position and an essentially fully open control valve position, and a controller to receive a sprinkler head position signal from the sprinkler head position determiner and send a control valve control signal to the flow control valve positioner in response thereto.

Abstract: The invention provides an improved ceramic packing element (1, 6, 8) suited to use as a bed limiter having a generally uniform cross-section in the length (l) direction with the basic shape of a bow-tie and having a plurality of through passages (5) parallel to the length dimension (L).

Abstract: Ceramic mass and thermal transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a ball clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides. The media preferably comprises less than 0.25% by weight of alkali metal, expressed as the oxide, and has a cordierite: silica phase ratio of less than 1.2:1, as determined by X-ray diffraction.

Abstract: Ceramic media made using ceramic components comprising from 5 to 60% by weight of spodumene and 95 to 40 wt % of other ceramic-forming components comprising clay and feldspar have a reduced tendency to shrink upon firing to form the media and improved physical properties.

Abstract: Ceramic mass and thermal transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a ball clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides. The media preferably comprises less than 0.25% by weight of alkali metal, expressed as the oxide, and has a cordierite: silica phase ratio of less than 1.2:1, as determined by X-ray diffraction.

Abstract: Ceramic mass transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides.

Abstract: Ceramic media made using ceramic components comprising from 5 to 60% by weight of spodumene and 95 to 40 wt % of other ceramic-forming components comprising clay and feldspar have a reduced tendency to shrink upon firing to form the media and improved physical properties.

Abstract: Ceramic mass transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides.

Abstract: The invention provides a method of purifying hydrocarbon streams from metallic impurities which comprises passing the stream through media comprising alumina with relatively minor amounts of calcia and magnesia.

Abstract: The invention provides a method of purifying hydrocarbon streams from metallic impurities which comprises passing the stream through media comprising alumina with relatively minor amounts of calcia and magnesia.

Abstract: The invention provides media for absorption of phosphate and metal contaminants from a hydrocarbon stream and a method of making such media. The media comprise alumina with relatively minor amounts of calcia and magnesia and are made by a process in which the minor components or precursors of such components are dispersed in a gelled sol of a hydrated alumina such as boehmite.