Microwave-induced pyrolysis reactor and procedure

摘要

A continuous process of recycling a metal / organic laminate comprising metal rolling with an organic material, the process comprising: providing a reactor (1) comprising a first chamber (2) containing a first bed of absorption material of particulate microwave and a first rotating stirrer (4), and a second chamber (3) containing a second bed of particulate microwave absorption material and a second (5) rotating stirrer, the second chamber having an outlet (7) of the reactor (1); introducing the laminate and the additional particulate microwave absorption material into the first chamber (2) containing the first bed of particulate microwave absorption material; Stir the particulate microwave absorption material and the laminate into the first chamber (2) using the first rotating stirrer (4) and apply microwave energy to the mixture of particulate microwave absorption material and laminated in the first chamber ( 2) to heat the particulate microwave absorption material in the mixture to a temperature sufficient to pyrolize the organic material in the laminate; transfer a portion of the mixture in the first chamber (2) to the second chamber (3) containing the second bed of particulate microwave absorption material; Stir the mixture in the second chamber (3) by the second rotating stirrer (5) and apply microwave energy to the mixture in the second chamber (3) to heat the particulate microwave absorption material in the mixture to a sufficient temperature. to pyrolize the remaining organic material in the laminate, whereby the laminated or delaminated metal migrates to, and floats on, the upper surface of the mixture in the second chamber (3), characterized in that at least the rotary stirrer in the The second chamber is configured as a horizontally extending blade rotating around a vertical axis at its midpoint, the upper edge or upper surface of the blade inclined downward from said midpoint toward the ends of the blade to fluidize the mixture, of such that the upper surface of the fluidized mixture has a radial profile that pushes the laminated or delaminated metal that floats on the fluidized mixture p to migrate radially outward; transfer a portion of the mixture in the second chamber (3) to the outlet (7) of the reactor (1); and recover the metal at the outlet (7) of the reactor (1).