Method and apparatus for removing solids from an upwardly moving

Details Method and apparatus for removing solids from an upwardly moving Method and apparatus for removing solids from an upwardly moving

1988-04-11

1989-04-11

Schor, Kenneth M.

Distillation: processes, thermolytic

In a moving bed

48 87, 202 99, 202262, 208400, 414209, C10B 104, C10B 4906, C10B 5306

Patent

active

048203823

ABSTRACT:
A method for forming a terraced structure in the upper surface of a particulate solid bed, typically oil shale, moving upward through an upflow retort and removing particulate solids from the upper surface, which includes rotating a scraping means comprising a shaft having a plurality of scrapers secured thereto arranged in a vertically spaced-apart relationship and in a radially outwardly-stepped relationship relative to a vertical axis of the shaft.

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