Routes for energy and bio-silica production from rice husk: A comprehensive review and emerging prospect

Steven, Soen; Restiawaty, Elvi; Bindar, Yazid

doi:10.1016/j.rser.2021.111329

Cited by 75 publications

(15 citation statements)

References 95 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Incineration parameters were set based on temperature changes from black RHA to white RHA, which is highly preferable due to its low carbon content. A pure white RHA was produced at a range of 600 to 1000 °C [ 25 , 26 , 27 ]. According to Steven et al (2021), the minimum incineration temperature to produce white RHA was 600 °C for 9 h [ 25 ].…”

Section: Methodsmentioning

confidence: 99%

“…A pure white RHA was produced at a range of 600 to 1000 °C [ 25 , 26 , 27 ]. According to Steven et al (2021), the minimum incineration temperature to produce white RHA was 600 °C for 9 h [ 25 ]. Xu et al (2016) revealed that a high purity amorphous silica from RHA was produced at incineration temperature of 1000 °C for 7 h [ 26 ].…”

Section: Methodsmentioning

confidence: 99%

“…The form of silica produced and the reactivity of RHA is dependent on several factors such as the incinerating temperature and time. Incineration temperature and time play a vital role in affecting the silica phase, whether it remains amorphous or is transformed into the crystalline form [ 25 ]. Furthermore, numerous studies have been carried out to investigate the effects of pre-treated rice husks (RH) on the RHA composition.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of Different Pre-Treatment on the Microstructure and Intumescent Properties of Rice Husk Ash-Based Geopolymer Hybrid Coating

et al. 2022

View full text Add to dashboard Cite

Despite the growing popularity of rice husk ash (RHA) in various applications, limited research has been devoted to identify the influence of silica content in RHA on the intumescent properties. The present work aims to introduce a novel and economical geopolymer hybrid fire retardant coating by utilizing the use of RHA. The silica from Rice husk (RH) was extracted using distilled water and hydrochloric acid as leaching agents and subjected to pyrolysis treatment. X-ray fluorescence (XRF) analysis indicated that RH that underwent HCl pre-treatment at 600 °C for one hour produced a high purity amorphous silica content of 93.92%. XRD measurements revealed that HCl pretreatment increased the crystallization temperature of RHA to 1000 °C and retained the amorphous state of silica for 2 h. In a fire resistance test, temperature at the equilibrium and time taken to reach 200 °C for sample S3 (93.92% wt. silica) showed 5.83% and 3.48% improvement compared to sample S1 (87.49% wt. silica). The microstructure analysis showed that sample S1 possessed bigger pores on the coating surface while an increment in silica content in sample S3 produced a dense foam structure. Results from a fire resistance test were supported by the Energy dispersive X-ray (EDX) analysis of the sample. The oxygen-to-carbon ratio of S1 and S3 coating samples were 1.695 and 1.622 respectively, which indicated that lower oxygen–to-carbon ratio in sample S3 coating resulted in better anti-oxidant properties. Interestingly, the increment of SiO2 content in RHA efficiently improved the compactness of the char layer, which resulted in a relatively higher fire-retardant efficiency. RHA proved to be a promising environmentally friendly strategy to replace halogenated fire retardant materials.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Different Pre-Treatment on the Microstructure and Intumescent Properties of Rice Husk Ash-Based Geopolymer Hybrid Coating

et al. 2022

View full text Add to dashboard Cite

show abstract

“…An alternative way to obtain this product is processing of rice production waste which contains a significant amount of SiO2. A large number of scientific papers in this field point to good prospects for the synthesis of amorphous silicon dioxide from this kind of raw material [15]. The cheapness of rice husk, combined with a rather economical technology for its processing [16], arouse considerable interest of the scientific community and grant givers to finding optimal ways to obtain high-purity silicon dioxide from rice husk.…”

Section: Introductionmentioning

confidence: 99%

Характеристика Діоксиду Кремнію, Отриманого Із Рисового Лушпиння

Гриднєва¹,

Скнар

Sknar

et al. 2022

J. of Chem. and Tech.

View full text Add to dashboard Cite

Актуальним завданням сучасної хімічної технології є синтез високочистого аморфного діоксиду кремнію з високою питомою поверхнею. Оптимізація технологічних процесів у напрямі зниження енерговитрат та факторів забруднення навколишнього середовища обумовлює активний пошук способів переробки сировини рослинного походження з отриманням діоксиду кремнію із заданими фізико-хімічними характеристиками.Оптимальним, з огляду на енергозбереження, є спосіб переробки рисового лушпиння, що передбачає хімічне очищення рослинної сировини з подальшою її термообробкою. У цій роботі показано, що використання методу подвійної екстракції дозволяє досягти високих характеристик синтезованого з рисової лушпиння діоксиду кремнію. Встановлено, що обробка рисового лушпиння в спиртовому розчині соляної кислоти з подальшою обробкою у водному розчині сірчаної кислоти призводить до очищення сировини від іонів металів та значної кількості лігніну та целюлози. Діоксид кремнію, отриманий в результаті 5 хвилинного випалу при 600 °С підготовленої сировини, є порошок білого кольору з переважним розміром близько 2 мкм і питомою поверхнею 235-250 м2/г. Продукт є рентгеноаморфним та високочистим. Високі характеристики діоксиду кремнію, синтезованого запропонованим способом, відкривають великі перспективи його використання як носії для активних мас каталізаторів, лікарських та косметичних препаратів.

show abstract

“…The green products from rice husk are mostly obtained through combustion 11,12 . It is suitable to be implemented in a vertical suspension furnace, but it has many factors that influence the performance, such as particle size, moisture content, sphericity, feeding technique, and furnace geometry 13–15 …”

Section: Introductionmentioning

confidence: 99%

Digitalized turbulent behaviors of air and rice husk flow in a vertical suspension furnace from computational fluid dynamics simulation

Steven

Restiawaty

Pasymi

et al. 2022

Asia-Pacific J Chem Eng

Self Cite

View full text Add to dashboard Cite

The knowledge of fluid–particle flow behavior is necessary. Unfortunately, computational fluid dynamics (CFD) studies are mostly focused on developing numerical methods in detail. Instead, the CFD studies should also subtly shift to become a tool for digitalizing fluid science to guide the practical industrial aspects. Therefore, this simulation study intends to reveal the air and rice husk flow behaviors in a vertical suspension furnace, complete with presenting digital simulation data, aiming to alleviate the escape particle amount. According to this study, the escaped particle amount was suppressed under more sphere particle, smaller particle size, and feed inlet pipe that sunk into the burner. The properties change from rice husk to ash, along with temperature escalation (as in combustion phenomena), enlarging the escaped particle amount, so the cyclone should be installed to handle it. In addition, the results of digital turbulent data from CFD simulation have succeeded in intriguing and revealing the fluid–particle flow behavior in the vertical suspension furnace. The data show a close match to the real phenomena occurring inside this furnace which reflects the standard k–ε model can conclusively predict fluid–particle flow behavior without conflicting Newton's second law of particle motion.

show abstract

Routes for energy and bio-silica production from rice husk: A comprehensive review and emerging prospect

Cited by 75 publications

References 95 publications

Effect of Different Pre-Treatment on the Microstructure and Intumescent Properties of Rice Husk Ash-Based Geopolymer Hybrid Coating

Effect of Different Pre-Treatment on the Microstructure and Intumescent Properties of Rice Husk Ash-Based Geopolymer Hybrid Coating

Характеристика Діоксиду Кремнію, Отриманого Із Рисового Лушпиння

Digitalized turbulent behaviors of air and rice husk flow in a vertical suspension furnace from computational fluid dynamics simulation

Contact Info

Product

Resources

About