Mineral oils: processes and products – Chemical conversion of hydrocarbons – Solids contacting and mixing
Patent
1990-10-04
1994-06-28
Myers, Helane
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Solids contacting and mixing
208113, 208152, 208159, 208160, 122 4D, 16510416, C10G 1110, F22B 100
Patent
active
053244214
ABSTRACT:
In a steam generator for recovering heat in a hot fluidized bed of solid particles, wherein coils of the steam generator make a 180.degree. U-bend, the U-bend portion of the coils are protected from overheating by installing an open top insulating box around the U-bend portion of the coil. In use solid particles from the circulating fluidized bed accumulate in the insulating box thus providing a non-moving layer of solid particles surrounding the U-bend which thermally insulates the U-bend portion of the coil from the higher temperature encountered in the moving fluidized bed.
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Bogatie George E.
Myers Helane
Phillips Petroleum Company
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