Dingrong Bai

Shenyang University of Chemical Technology

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Guangwen Xu

Shenyang University of Chemical Technology

Liangliang Fu

Huazhong Agricultural University

Zhennan Han

Shenyang University of Chemical Technology

Mengjuan Zhang

Shenyang University of Chemical Technology

Liang Bin

Harbin Institute of Technology

Guoqing Guan

Hirosaki University

Xiaotao Bi

University of British Columbia

Abuliti Abudula

Hirosaki University

Wenli Duo

FPInnovations

Bo Tan

Universiti Sains Malaysia

Cooperative Institutions

Shenyang University of Chemical Technology

University of Chinese Academy of Sciences

Tsinghua University

Institute of Process Engineering

Chinese Academy of Sciences

Harbin Institute of Technology

Hirosaki University

University of British Columbia

Guangdong University of Technology

Northwestern Polytechnical University

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A two-stage circulated fluidized bed process to minimize tar generation of biomass gasification for fuel gas production

Applied Energy (2022)

Chao Wang Lianfeng Zhu Mengjuan Zhang Zhennan Han Xin Jia

tar (computing)

Producer gas

10.1016/j.apenergy.2022.119639

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Citations (39)

Situating the high‐density circulating fluidized bed

AIChE Journal (1999)

John R. Grace Allan S. Issangya Dingrong Bai Hsiaotao T. Bi Jesse Zhu

Abstract Gas–solid flow in high‐density circulating fluidized‐bed risers differs significantly from that in conventional flow regimes, including fast fluidization and pneumatic conveying. It is shown that when there is no downward flux at the wall at high suspension densities, and hence no core/annulus structure, the flow corresponds to a dense suspension upflow regime. This flow regime is explained, and its key properties given. A lower boundary is also proposed for this new flow regime based on available data.

Fluidization

Annulus (botany)

Suspension

Fluidized bed combustion

10.1002/aic.690451009

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Citations (141)

Methanation of CO₂ over Yb-Promoted Ni/Al₂O₃ Catalysts Prepared by Solution Combustion

Energy & Fuels (2022)

Luqman Abdullahi Sani Chao Wang Mengjuan Zhang Haolong Bai Ping An

Introducing a proper promoter into Ni-based catalysts for CO2 methanation is an effective method to improve their catalytic performance. In this work, we prepare a series of Yb-modified Ni/Al2O3 catalysts by a solution combustion approach and characterize them using various techniques, including nitrogen adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), temperature-programmed hydrogen reduction (H2-TPR), hydrogen desorption (H2-TPD), carbon dioxide desorption (CO2-TPD), Fourier transform infrared (FTIR), and Thermogravimetric/differential thermal (TG/DTA), and test their CO2 methanation activity in a fixed-bed reactor under conditions of 200–500 °C, 0.1–2 MPa, space velocities ranging from 7200 to 16,200 h–1, and feed molar ratios of H2/CO2 from 1 to 4. We found that Yb modification promotes the dispersion of reducible NiO on Al2O3 and simultaneously leads to the creation of new Yb-involved CO2 chemisorption sites responsible for the improved catalytic activity and stability of Ni/Al2O3 catalysts for CO2 methanation so that the Yb-modified Ni/Al2O3 catalysts exhibit higher catalytic activities than Ni/Al2O3 catalysts without Yb.

Methanation

Thermogravimetric analysis

Temperature-programmed reduction

Non-blocking I/O

Chemisorption

10.1021/acs.energyfuels.2c00180

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Citations (7)

Chaotic behavior of fluidized beds based on pressure and voidage fluctuations

AIChE Journal (1997)

Dingrong Bai Hsiaotao T. Bi John R. Grace

Columbia university

10.1002/aic.690430525

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Citations (67)

Simulation of FCC catalyst regeneration in a riser regenerator

Chemical Engineering Journal (1998)

Dingrong Bai Jesse Zhu Yue Jin Zhongchen Yu

Fluid catalytic cracking

10.1016/s1385-8947(98)00110-7

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Citations (23)

Sources apportionment of water-soluble inorganic salts in CPM from coal-fired power plants with different emission control technologies

Fuel (2022)

Liang Bin Haolong Bai Bo Tan Dingrong Bai

10.1016/j.fuel.2022.126786

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Citations (7)

Pressure fluctuations in a gas-solid fluidized bed at temperatures up to 1650 °C

Chemical Engineering Journal (2023)

Liangliang Fu Qingjin Zhang Guangwen Xu Dingrong Bai

Fluidization

10.1016/j.cej.2023.143806

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Citations (14)

Challenges and opportunities for engineering thermochemistry in carbon-neutralization technologies

National Science Review (2022)

Guangwen Xu Dingrong Bai Chunming Xu Mingyuan He

Engineering thermochemistry is the science and technology that studies, innovates, and engineers heat-induced or heat-driven thermochemical reactions and can potentially lead to reductions of five-plus billion tons of CO2 emissions effectively and economically.

Thermochemistry

Carbon fibers

Science and engineering

10.1093/nsr/nwac217

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Citations (30)

Acquiring real kinetics of reactions in the inhibitory atmosphere containing product gases using micro fluidized bed

AIChE Journal (2021)

Xuejing Liu Wenqian Hao Kexin Wang Yingche Wang Ping An

Abstract This study proposed an isotope‐tagging method to investigate reactions under the atmosphere of product gas. To illustrate this method, the calcination kinetics of calcium carbonate Ca 13 CO 3 in CO 2 atmospheres were investigated by monitoring 13 CO 2 produced using a micro fluidized bed reaction analyzer (MFBRA). The results demonstrated that the presence of CO 2 in reaction atmosphere increases the apparent activation energy. The increase in the apparent activation energy is, however, significantly overestimated by the thermogravimetric analyzer (TGA) because of the excessive suppression by stagnated product gas inside the sample crucible. Comparatively, the apparent activation energy increases with CO 2 from the MFBRA due primarily to the thermal equilibrium limitation, because the gas diffusion in the MFBRA is essentially eliminated. It is thus concluded that the MFBRA is quite capable of acquiring the real kinetics of reactions in such inhibitory atmospheres.

Thermogravimetric analysis

10.1002/aic.17325

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Citations (11)

Corrigendum to ‘Pilot verification of a two-stage fluidized bed gasifier with a downer pyrolyzer using oxygen-rich air’ [Fuel 307 (2021) 121816]

Fuel (2022)

Chao Wang Mengjuan Zhang Zhennan Han Dingrong Bai Wenli Duo

Wood gas generator

10.1016/j.fuel.2022.123709

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Citations (2)