Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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8/00
Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
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B01J8/02
with stationary particles, e.g. in fixed beds
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B01J8/04
the fluid passing successively through two or more beds
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B01J8/0446
the flow within the beds being predominantly vertical
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B01J8/0476
in two or more otherwise shaped beds
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