Experimental Investigation of the Reaction Network of Ethene to Propene over Ni/AlMCM‐41 Catalysts1. Issue 7 (11th May 2017)

• Record Type: Journal Article
• Authors: Perea, Leo Alvarado; Felischak, Matthias; Wolff, Tanya; Hamel, Christof; Seidel‐Morgenstern, Andreas
• Is Part Of: Chemie Ingenieur Technik. Volume 89:Issue 7(2017:Jul.)
• Page Start: 903
• Page End: 914
• Publication Date: 2017-05-11
• Subjects: Ethene -- Metathesis -- Ni/AlMCM‐41 catalysts -- Propene -- Reaction network; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.201600166
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: The reaction network of the ethene‐to‐propene (ETP) reaction over Ni/AlMCM‐41 catalysts was studied. This reaction consists of the dimerization of ethene, the isomerization of 1‐butene, and the metathesis of ethene and 2 ‐ butene to propene. This work focused on the latter. ETP experiments followed by in situ diffuse reflectance infrared Fourier transform spectroscopy were carried out. Metathesis activities were evaluated by the isomerization of butenes, the metathesis of ethene and 2‐butene, and the retro‐metathesis of propene. Metathesis activities of Ni/AlMCM‐41 catalysts were not observed. Thus, a conjunct polymerization of ethene to propene is proposed. Abstract : The direct transformation of ethene to propene is better explained by proposing a conjunct polymerization than the classical reaction network proposed by Iwamoto. This process produces a complex mixture of hydrocarbons. The results show that metathesis activities of the Ni/AlMCM‐41 catalysts could not be observed in the direct conversion of ethene to propene.