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| Pilot scale study on a catalyst for MTO |
| Zhao Guang, Zhao Chaoyue, Wei Yanming, Liu Fan, Feng Jian |
| China Catalyst Technology Corporation Ltd., Taiyuan 030000, China |
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Abstract MTO process can provide new development space for chemical utilization of coal or natural gas, especially for remote areas rich in natural gas resources or coal resources, and create opportunities for large-scale development of methanol, low-carbon olefin and its downstream products by using natural gas or coal. Therefore, the current research on MTO catalysts is of great significance to China's increasing dependence on oil imports. The main purpose is to prepare a catalyst whose performance can be consistent with that of imported MTO catalyst and break the foreign monopoly.The catalyst prepared by CMTO and the imported catalyst (UOP catalyst) were compared in 10 kg circulating fluidized bed simulating industrial production conditions. Under various conditions of this test, the operating carbon accumulation control of CMTO catalyst is lower than that of the reference agent, and the yield is slightly lower than that of the reference agent as a whole, and slightly higher than that of the reference agent in some cases. The results showed that the activities of CMTO catalyst and reference agent were basically the same. CMTO catalyst has higher ethylene content and lower propylene content than reference catalyst.
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| [ 1 ] Najafabadi A T, Fatemi S, Sohrabi M, et al. Kinetic modeling and optimization of the operating condition of MTO process on SAPO-34 catalyst[ J ]. Journal of Industrial and Engineering Chemistry, 2012, 18( 1 ): 29 - 37.
[ 2 ] KEIL F J. Methanol-to-hydrocarbons: process technology[ J ]. M-
icroporous and Mesoporous Materials, 1999, 29(1 - 2): 49 - 66.
[ 3 ] ST CKER M. Methanol-to-hydrocarbons: catalytic materials and their behavior1[ J ]. Microporous and Mesoporous Materials, 1999, 29(1 - 2): 3 - 48.
[ 4 ] CHANG C D. Methanol Conversion to Light Olefins[ J ]. Catalysis Reviews-science And Engineering, 1984, 26: 323 - 345.
[ 5 ] RABO J A, SCHOONOVER M W. Early discoveries in zeolite ch-
emistry and catalysis at Union Carbide, and follow-up in industrial catalysis[ J ]. Applied Catalysis A: General, 2001, 222(1 - 2): 261 - 275.
[ 6 ] Wakihara, Sato K, Inagaki S, et al. Fabrication of Fine Zeolite with Improved Catalytic Properties by Bead Milling and Alkali Treatment[ J ]. ACS Applied Material& Interfaces 2010, 2( 10 ): 2 715 - 2 718.
[ 7 ] Chen D, Moljord K, Holmen A. A methanol to olefins review: Diff-
usion, coke formation and deactivation on SAPO type catalysts[ J ]. Microporous and Mesoporous Materials, 2012, 164( 164 ): 239 - 250.
[ 8 ] AHMADI S M A, ASKARI S, HALLADJ R. A review on kinetic modeling of deactivation of SAPO-34 catalyst during Methanol to Olefins (MTO) process[ J ]. Afinidad, 2013, 70( 562 ): 130 - 138.
[ 9 ] TIAN P, WEI Y X, YE M, et al. Methanol to Olefins (MTO): From Fundamentals to Commercialization[ J ]. ACS Catalysis, 2015, 5( 3 ): 1 922 - 1 938. |
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