CFD study of the reactive gas-solid hydrodynamics in a large-scale catalytic methanol-to-olefin fluidized bed reactor

Starch manufacturing industrial units, such as sago mills, both at medium and large scale, suffer from inadequate treatment and disposal problems due to high concentration of suspended solid content present in the effluent. In order to investigate the viability of treatment of sago effluent, a laboratory scale study was conducted. The treatment of sago effluent was studied in a continuous flow anaerobic fluidized bed reactor. The start-up of the reactor was carried out using a mixture of digested supernatant sewage sludge and cow dung slurry in different proportions. The effect of operating variables such as COD of the effluent, bed expansion, minimum fluidization velocity on efficiency of treatment and recovery of biogas was investigated. The treated wastewater was analysed for recycling and reuse to ensure an alternative for sustainable water resourse management. The maximum efficiency of treatment was found to be 82% and the nitrogen enriched digested sludge was recommended for agricultural use.

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Filtered model for the cold-model gas–solid flow in a large-scale MTO fluidized bed reactor

Chemical Engineering Science ◽

10.1016/j.ces.2016.01.006 ◽

2016 ◽

Vol 143 ◽

pp. 369-383 ◽

Cited By ~ 32

Author(s):

Li-Tao Zhu ◽

Le Xie ◽

Jie Xiao ◽

Zheng-Hong Luo

Keyword(s):

Fluidized Bed ◽

Large Scale ◽

Fluidized Bed Reactor ◽

Cold Model ◽

Solid Flow

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Application of a Fluidized Bed Reactor in the MTO (Methanol to Olefin) Process: Preparation of Catalyst and Presentation of a Kinetic Model

Petroleum Science and Technology ◽

10.1080/10916461003610397 ◽

2011 ◽

Vol 29 (15) ◽

pp. 1578-1589 ◽

Cited By ~ 5

Author(s):

N. Fatourehchi ◽

M. Sohrabi ◽

S. J. Royaee ◽

S. M. Mirarefin

Keyword(s):

Kinetic Model ◽

Fluidized Bed ◽

Fluidized Bed Reactor ◽

Methanol To Olefin

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Process Development for the Large Scale Production of Clinical Grade Human Monoclonal Antibody Using a Cytopilot Fluidized Bed Reactor

Animal Cell Technology ◽

10.1007/978-94-011-5404-8_71 ◽

1997 ◽

pp. 447-450 ◽

Cited By ~ 3

Author(s):

G. Klima ◽

G. Kreismayr ◽

D. Müller ◽

C. Schmatz ◽

S. Wiederkum ◽

...

Keyword(s):

Monoclonal Antibody ◽

Fluidized Bed ◽

Large Scale ◽

Process Development ◽

Human Monoclonal Antibody ◽

Fluidized Bed Reactor ◽

Scale Production ◽

Clinical Grade ◽

Large Scale Production

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INSIGHT INTO THE GROWTH MECHANISM OF WS2 NANOTUBES IN THE SCALED-UP FLUIDIZED-BED REACTOR

NANO ◽

10.1142/s1793292009001551 ◽

2009 ◽

Vol 04 (02) ◽

pp. 91-98 ◽

Cited By ~ 102

Author(s):

A. ZAK ◽

L. SALLACAN-ECKER ◽

A. MARGOLIN ◽

M. GENUT ◽

R. TENNE

Keyword(s):

Mechanical Behavior ◽

Fluidized Bed ◽

Growth Mechanism ◽

Large Scale ◽

Analytical Techniques ◽

Fluidized Bed Reactor ◽

Crystalline Order ◽

Catalyst Free ◽

Insight Into

The growth mechanism of WS2 nanotubes in the large-scale fluidized-bed reactor is studied in greater detail. This study and careful parameterization of the conditions within the reactor lead to the synthesis of large amounts (50–100 g/batch) of pure nanotubes, which appear as a fluffy powder, and (400–500 g/batch) of nanotubes/nanoplatelets mixture (50:50), where nanotubes usually coming in bundles. The two products are obtained simultaneously in the same reaction but are collected in different zones of the reactor, in a reproducible fashion. The characterization of the nanotubes, which grow catalyst-free, by a number of analytical techniques is reported. The majority of the nanotubes range from 10 to 50 micron in length and 20–180 nm in diameter. The nanotubes reveal highly crystalline order, suggesting very good mechanical behavior with numerous applications.

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