PETROLEUM RESID PELLETIZATION

PROBLEM TO BE SOLVED: To provide a method and apparatus for producing substantially spherical, homogenous petroleum resid pellets having a size in the range of 0.1-10 mm, a penetration of essentially 0, a softening point temperature of about 200 to about 400°F, a residual water content of 0.1-10 wt....

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Bibliographische Detailangaben
Hauptverfasser:	MORETTA JON C, SUBRAMANIAN MURUGESAN
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PYROLIGNEOUS ACID SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method and apparatus for producing substantially spherical, homogenous petroleum resid pellets having a size in the range of 0.1-10 mm, a penetration of essentially 0, a softening point temperature of about 200 to about 400°F, a residual water content of 0.1-10 wt.%, and a sulfur content of less than 10 wt.%.SOLUTION: The method includes feeding the material in a molten state to a rotating prilling head 46 to discharge the material into a free space at the upper end of a pelletizing vessel 36 having a diameter larger than a throw-away diameter of the discharged material, allowing the discharged material to break apart, form into substantially spherical liquid pellets, and fall downwardly into a liquid spray and/or bath to solidify the pellets. The apparatus has an upright pelletizing vessel with an upper prilling zone, a sphere-forming zone below the prilling zone, a cooling zone below the sphere-forming zone, a bath below the cooling zone, and a prilling head in the prilling zone rotatable around a vertical axis and having a plurality of discharge orifices for throwing molten material radially outwardly.