Patent ID: 6149881
Filing Date: 2000-11-21
Classification: B01J,C07C,C10B,C10G,Y02P

Abstract:
An oven for pyrolyzing polyisoprene rubber to produce limonene, comprising:a housing defining a high temperature reaction region for pyrolyzing polyisoprene rubber and a low temperature condensation region wherein isoprene gases produced as a result of pyrolyzing said polyisoprene rubber dimerize to limonene;a support for holding said polyisoprene rubber to be pyrolyzed in said high temperature reaction region;heating means for heating said reaction region to a pyrolyzing temperature;cooling means for cooling said low temperature condensation region to an isoprene condensation temperature wherein said cooling means comprises a cooling coil or a cooling jacket surrounding said housing and a coolant disposed in said means; andtransfer means for enhancing the transfer of the isoprene gases from said high temperature reaction region to said low temperature condensation region.