Screening and Testing of Anti-Slagging Agents for Tobacco-Stalk-Based Biomass Pellet Fuel for Tobacco Curing

Using tobacco stalks as a biomass fuel for flue-cured tobacco production creates a closed, green production cycle. Tobacco stalks are rich in cellulose and can be crushed to produce biomass pellet fuel (BPF). However, single flue-cured tobacco stalk (FCTs) BPF can easily slag during flue-cured tobac...

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Bibliographic Details
Published in:Processes 2022-09, Vol.10 (9), p.1690
Main Authors: Wang, Liang, Fan, Yikuan, He, Fan, Niu, Baoquan, Wei, Fengjie, Zhao, Haobin, Wang, Jianan
Format: Article
Language:English
Subjects:
Additives
Biomass
Biomass burning
Biomass energy
Calcium carbonate
Calcium phosphate
Calcium phosphates
Carbon monoxide
Carboxymethyl cellulose
Carboxymethylcellulose
Cellulose
Chimneys
Clay
Coal
Combustion
Curing
Curing agents
Diatomaceous earth
Economic impact
Flue gas
Fuels
Fusibility
Heat
Kaolin
Laboratories
Medical tests
Methods
Morphology
Particle size
Particulate emissions
Particulate matter
Pellets
Slag
Slagging
Sodium carboxymethyl cellulose
Tobacco
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Summary:Using tobacco stalks as a biomass fuel for flue-cured tobacco production creates a closed, green production cycle. Tobacco stalks are rich in cellulose and can be crushed to produce biomass pellet fuel (BPF). However, single flue-cured tobacco stalk (FCTs) BPF can easily slag during flue-cured tobacco heating (FTH), which affects the operation of biomass burners. In this study, five anti-slagging agents (ASAs), one organic (sodium carboxymethyl cellulose, CMC) and four inorganic (kaolin, KLN; diatomite earth, DTE; calcium carbonate, CCO; and calcium dihydrogen phosphate, CHO)], were compared. An ash fusibility test was conducted in two steps to optimize the proportion and treatments that were then screened using FTH. Compared with pure FCT-based BPFs, the slag resistance of 2% CCO and CHO could be controlled below 15%. The emission of particulate matter from chimneys burning BPF with 2% CCO was lower than that with other ASAs. The ASAs achieved complete combustion with low carbon monoxide content in the tail gas. Considering the anti-slagging effect and economic cost, 2% CCO was the best additive for the biomass burner. These results provide a reference for FCT-based BPF production.
ISSN:2227-9717
2227-9717
DOI:10.3390/pr10091690