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Update Time:2025-07-03 14:47:13
Propane direct dehydrogenation technology uses propane as feedstock for direct catalytic dehydrogenation to produce propylene. Chromium-based catalysts are low-cost and have relatively low requirements for feedstock impurities. In the currently commercialized propane direct dehydrogenation processes, including Catofin, Linde, and FBD, chromium-based catalysts are employed. These processes operate at reaction temperatures above 550°C, with reaction cycles ranging from 15 to 30 minutes.
Initially, unsaturated chromium species are present on the alumina surface. Propane molecules enter the catalyst pores and adsorb onto the surface, forming H-O bonds and Cr-C bonds. Subsequently, the dehydrogenation reaction occurs on the catalyst surface, generating adsorbed propylene. Finally, the adsorbed propylene desorbs from the surface and exits through the pores, while the generated hydrogen reduces the oxidized chromium species.
Item | Specification |
Shape | Cylindrical |
Diameter | 4.0±0.2mm |
Length | 10-15mm |
Bulk Density | 1.0±0.1g/ml |
Crushing Strength | ≥120N/cm |
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