PROCESS AND REACTOR FOR THE EPOXIDATION OF PROPENE

• Main Authors: DOPFER MICHAEL, BARZ MANFRED, BRENDEL MARC, BERNHARD MAIK, BOLZ DAVID, BREDEMEYER NIELS, KOWOLL JOHANNES, PFENNING DANA, PORSCHA PETER, SEL JURGEN, JAEGER BERND, WOLL WOLFGANG, ULLRICH NORBERT, HOFEN WILLI, KOLBE BARBEL
• Format: Patent
• Language: Chinese; English
• Published: 21.08.2018
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

Propene is continuously reacted with hydrogen peroxide in a tube bundle reactor comprising a multitude of parallel reaction tubes in the presence of a titanium silicalite catalyst arranged as a fixedbed in the reaction tubes. A cooling jacket encloses the reaction tubes, which has a feed point for cooling medium near the entry of the reaction tubes,a withdrawal point for cooling medium near the end of the reaction tubes and at least one additional withdrawal point upstream of the withdrawal point near the end of the reaction tubes. Cooling medium is fed to the feed point for cooling medium, apart of the cooling medium is withdrawn at the at least one additional withdrawal point and the remainder exits at the withdrawal point near the end of the reaction tubes. 在包括多个平行反应管的管束反应器中，在钛硅分子筛催化剂的存在下使丙烯与过氧化氢连续反应，所述钛硅分子筛催化剂在所述反应管中布置为固定床。有冷却夹套包围所述反应管，所述反应管具有靠近所述反应管的入口的冷却介质进料点、靠近所述反应管的末端的冷却介质抽取点，以及在靠近所述反应管末端的抽取点上游的至少个额外的抽取点。将冷却介质进料至所述冷却介质的进料点，所述冷却介质的部分在所述至少个额外的抽取点处抽取，而其余部分在靠近所述反应管的末端的抽取点处排出。