METHOD AND DEVICE FOR SEPARATION IN A SIMULATED MOBILE BED WITH A REDUCED NUMBER OF BEDS WITH FLOW OF BYPASS FLUID

Procédé de séparation en lit mobile simulé (LMS) d'une charge (F) dans lequel : au moins une zone (1, 2, 3, 4) contient moins de trois lits, si on injecte ou soutire le flux (D, E, F, R) délimitant ladite zone et situé en amont de ladite zone sur le plateau Pivia la ligne de dérivation Li/i+1, alors on injecte/soutire le flux délimitant ladite zone et situé en aval de ladite zone sur le plateau Pjvia la ligne de dérivation Lj/j+1, et si on injecte ou soutire le flux délimitant ladite zone et situé en aval de ladite zone sur le plateau Pivia la ligne de dérivation Li-1/i, alors on injecte/soutire le flux délimitant ladite zone et situé en amont de ladite zone sur le plateau Pjvia la ligne de dérivation Lj-1/j. Method for the simulated moving bed (SMB) separation of a feedstock (F), in which: at least one zone (1, 2, 3, 4) contains fewer than three beds, if the stream (D, E, F, R) delimiting said zone and situated upstream of said zone is injected or withdrawn at the plate Pi via the bypass line Li/i+1, then the stream delimiting said zone and situated downstream of said zone is injected/withdrawn at the plate Pj via the bypass line Lj/j+1, and if the stream delimiting said zone and situated downstream of said zone is injected or withdrawn at the plate Pi via the bypass line Li−1/i, then the stream delimiting said zone and situated upstream of said zone is injected/withdrawn at the plate Pj via the bypass line Lj−1/j.