Experimental investigation into the incineration of wool scouring sludges in a novel rotating fluidised bed

Wong, Wayne; Lü, Yi; Nasserzadeh, V.; Swithenbank, J.; Shaw, T.; Madden, M.P.

doi:10.1016/s0304-3894(99)00171-5

Cited by 24 publications

(13 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…New particles/nuclei are generated in the bed by attrition in the prevailing agitated environment. Rotating fluidized beds (RFBs) have high mixing performance and have been used in combustion applications for sewage sludge [51], coal [52], and wool scouring sludge [53]. Additionally, RFBs have been applied in wet granulation and coating applications [54][55][56], and polymerization [57,58].…”

Section: Rfbmentioning

confidence: 99%

Process control in intensified continuous solids handling

Ohenoja

Boodhoo

Reay

et al. 2018

Chemical Engineering and Processing - Process Intensification

View full text Add to dashboard Cite

show abstract

Section: Rfbmentioning

confidence: 99%

Process control in intensified continuous solids handling

Ohenoja

Boodhoo

Reay

et al. 2018

Chemical Engineering and Processing - Process Intensification

View full text Add to dashboard Cite

show abstract

“…Fluidised beds are widely used in industry, e.g. as chemical waste incinerators [21], power plant boilers [22], biomass gasifiers [23], and for solids drying [24]. Fluidised bed reactors exhibit several advantages over conventional reactors for fluid particle reactions, namely good heat and mass transfer, and the ability to handle powders continuously.…”

Section: B Fluidised Bed Catalytic Chemical Vapour Depositionmentioning

confidence: 99%

A Scalable Technique for the Synthesis of Carbon Nanotubes

See

Harris

2006

2006 International Conference on Nanoscience and Nanotechnology

View full text Add to dashboard Cite

Carbon nanotubes (CNTs) are a form of crystalline carbon with extraordinary mechanical, chemical, physical and electrical properties. Consequently, CNTs have been used in a broad range of applications, e.g. electronics, polymeric additives and structural materials. However, the lack of a suitable large-scale manufacturing technique continues to inhibit their widespread use. Of the three established synthesis methods for CNTs: i) chemical vapour deposition (CVD), ii) laser ablation, and iii) arc discharge, CVD based techniques show the greatest promise for economically viable, large-scale synthesis. In particular, the fluidised bed CVD (FBCVD) technique (where the CVD reaction occurs within a fluidised bed of catalyst particles) has the potential to produce high quality CNT, inexpensively, in large quantities. In this work, we review the existing literature on CNT synthesis via FBCVD and demonstrate that no systematic study of the key parameters has been undertaken. Specifically, we show that there is no clear relationship between key experimental variables (e.g. temperature, pressure) and CNT properties (e.g. CNT diameter, length) and yield, when the results of several studies are compared. We support these findings with experiments investigating the influence of key variables. The successful scale-up of any process requires detailed understanding of key process parameters and their interactions. Hence, further research to optimise the purity, yield and selectivity of the synthesised CNTs is required.

show abstract

“…Practical applications extend to catalytic polymerization (Ahmadzadeh et al, 2005), coal combustion (Adá nez et al, 1995), drying (Carlson et al, 1976), pyrolysis of biomass (Janse et al, 1999), dust filtration (Gal et al, 1986) and spray coating (Turton and Cheng, 2005). In spite of the advantages, the applications have been limited to small-scale set-ups (Saunders, 1986;Wong et al, 2000) due to the rotating nature of the reactor causing difficulties in scale up because of mechanical vibrations due to the rotating geometry, the use of rotating seals, etc. The current lack of proper understanding of a fundamental fluidization model which can well describe the process is also a major hindrance to the industrial scale-up of rotating fluidized bed units (Nakamura et al, 2007).…”

Section: Introductionmentioning

confidence: 99%