Upgraded Seawater-Alkaline Pre-Treatment of Lignocellulosic Biomass for Bio-Methane Production

Shah, Ismail; Saharuddin, Mizan Qistina; Zahari, Mohamed Shahrir Mohamed

doi:10.1016/j.egypro.2017.10.390

Cited by 7 publications

(7 citation statements)

References 7 publications

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“…Chemical pretreatments were reported to be expensive due to high costs of disposal of digestion residues ( (Rouches et al, 2017). Other studies reported chemical methods with respect to alkali pretreatment to be inexpensive (Song et al, 2014;Amin et al, 2017;Gumisiriza et al, 2017;Ismail et al, 2017;Kumar and Sharma, 2017). The benefit of Ca(OH)2 pretreatment is the low disposal costs as Ca can be easily recovered from the hydrolyzate (Amin et al, 2017).…”

Section: Pretreatment Methods Observations Referencementioning

confidence: 99%

“…Based on pretreatment of corn straw, Ca(OH)2 could be a better option than NaOH although their pretreatment costs were not highly variable (Song et al, 2014). Alkali pretreatment was favored over other pretreatments due to low operational costs (Ismail et al, 2017). The low cost of lime and ease of recovery from the waste make it a better pretreatment technology than other alkalis (Kumar et al, 2017).…”

Section: Pretreatment Methods Observations Referencementioning

confidence: 99%

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Comparison of pretreatment methods that enhance biomethane production from crop residues - a systematic review

et al. 2019

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Section: Pretreatment Methods Observations Referencementioning

confidence: 99%

Section: Pretreatment Methods Observations Referencementioning

confidence: 99%

Comparison of pretreatment methods that enhance biomethane production from crop residues - a systematic review

et al. 2019

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“…In chemical pretreatment, ozone consumes higher energy, and a higher range of equipment is needed; thus, it increases the operational cost. Moreover, the alkali pretreatment favors lower OPC (Ismail et al, 2017). Moreover, lime usage reduces the operational cost for an easier recovery, making this pretreatment method feasible (Kumar and Sharma 2017).…”

Section: Operating Costmentioning

confidence: 99%

Indexing energy and cost of the pretreatment for economically efficient bioenergy generation

Preethi

Gunasekaran

2023

Front. Energy Res.

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The growing necessity for energy worldwide has led to the hunt for an interminable solution in the form of sustainable energy generation. To accomplish sustainability, these problems can be resolved using renewable waste biomass, which is readily accessible and low priced. Moreover, the ecological issue due to the disposal of this waste biomass into the environment is also counteracted by the use of this biomass for energy generation along with the substantial solid reduction for disposal. The presence of complex biopolymers in biomass, which hasten the hydrolysis step during energy generation, was enhanced by the application of a pretreatment method. The efficiency of the pretreatment methods was enhanced by maintaining the cost and energy usage since the commercialization of this method is largely limited. The major economic drivers are based on solid concentration and, thus, lead to higher capital costs. This study reveals the wide assortment of current progression in pretreatment techniques for treating waste biomass with special focus on combined and phase-separated pretreatment. Additionally, it converses the advantages and limitations of pretreatment methods. This pivotal investigation brings about the cost- and energy-effective conversion solution that paves the way for a sustainable energy system.

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“…The effect of various alka pre-treatments resulted 14.5%, 13.7%, 14.1% and 15.1% using NaOH, KOH, Ca(OH)2 Na2CO3, respectively. Alkaline pre-treatment contributes to the chemically mod structure of lignocellulosic EFB, breaking up the crystalline structure and increasing accessible surface area of EFB for a better interaction with metal sulphates in catalyst p aration [23]. The trends in the catalysts' acidity and conversion rate over different alkaline pretreatments and untreated-EFB are shown in Figure 3.…”

Section: Effect Of Various Chemical Pre-treatments On the Esterificat...mentioning

confidence: 99%

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

2023

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The development of heterogenous catalysts using renewable materials has received wide attention. A heterogenous catalyst has been a preferred choice as it evades the disadvantages of homogeneous catalysts, nevertheless, heterogenous catalysts has limited activity and a longer separation process. The current study emphasises the preparation of a new magnetic catalyst using oil palm empty fruit bunch (EFB) fibre as a carbon-based support material. The effect of different alkaline pre-treatments over the methyl ester conversion rate were investigated. The catalyst preparation parameters were studied by using the single factor optimisation approach, including the fibre loading, impregnation time, calcination temperature, and calcination time. Their effects in the esterification of oleic acid were investigated in this study. The optimisation study shows that the Na2CO3-treated(T)-EFBC magnetic catalyst had the highest esterification rate of 93.5% with 7 g EFB fibre loading, a 2 h impregnation time and a calcination temperature of 500 °C for 2 h. The catalyst possessed a good acidity of 3.5 mmol/g with excellent magnetism properties. This study showed that the catalysts are magnetically separable and exhibited good stability with 82.1% after five cycles. The oil palm EFB supported magnetic acid catalyst indicates it as a potential option to the existing solid catalysts that is economical and environmentally friendly for the esterification process.

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Upgraded Seawater-Alkaline Pre-Treatment of Lignocellulosic Biomass for Bio-Methane Production

Cited by 7 publications

References 7 publications

Comparison of pretreatment methods that enhance biomethane production from crop residues - a systematic review

Comparison of pretreatment methods that enhance biomethane production from crop residues - a systematic review

Indexing energy and cost of the pretreatment for economically efficient bioenergy generation

Effect of Chemical Pre-Treatment on the Catalytic Performance of Oil Palm EFB Fibre Supported Magnetic Acid Catalyst

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