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Zhou J, Zhang X, Zhao S, Zhang Z, Ye C, Xin Z. Influence of Modified Ziegler–Natta Catalyst on the Entanglement Behavior and Properties of Ultrahigh-Molecular-Weight Polyethylene (UHMWPE). Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Zhou
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China
| | - Xian Zhang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China
| | - Shicheng Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China
| | - Zhenfei Zhang
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins (Shanghai Research Institute of Chemical Industry), Shanghai 200062, People’s Republic of China
| | - Chunlin Ye
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China
- State Key Laboratory of Polyolefins and Catalysis, Shanghai Key Laboratory of Catalysis Technology for Polyolefins (Shanghai Research Institute of Chemical Industry), Shanghai 200062, People’s Republic of China
| | - Zhong Xin
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, Department of Product Engineering, East China University of Science and Technology, Shanghai, 200237, People’s Republic of China
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3D Unsteady Simulation of a Scale-Up Methanation Reactor with Interconnected Cooling Unit. ENERGIES 2021. [DOI: 10.3390/en14217095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The production of synthetic natural gas (SNG) via methanation has been demonstrated by experiments in bench scale bubbling fluidized bed reactors. In the current work, we focus on the scale-up of the methanation reactor, and a circulating fluidized bed (CFB) is designed with variable diameter according to the characteristic of methanation. The critical issue is the removal of reaction heat during the strongly exothermic process of the methanation. As a result, an interconnected bubbling fluidized bed (BFB) is utilized and connected with the reactor in order to cool the particles and to maintain system temperature. A 3D model is built, and the influences of operating temperature on H2, CO conversion and CH4 yield are evaluated by numerical simulations. The instantaneous and time-averaged flow behaviors are obtained and analyzed. It turns out that the products with high concentrations of CH4 are received at the CFB reactor outlet. The temperature of the system is kept under control by using a cooling unit, and the steady state of thermal behavior is achieved under the cooling effect of BFB reactor. The circulating rate of particles and the cooling power of the BFB reactor significantly affect the performance of reactor. This investigation provides insight into the design and operation of a scale-up methanation reactor, and the feasibility of the CFB reactor for the methanation process is confirmed.
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