A derived novel mesoporous catalyst for biodiesel synthesis from Hura creptian-Sesamum indicum-Blighia sapida-Ayo/Ncho oil blend: A case of Brachyura, Achatina fulica and Littorina littorea shells mix

The shells of molluscs protect them from physical damage, predators and dehydration. We studied various local uses of shells and their biochemical properties in Abeokuta, Nigeria. A standard structured questionnaire about use was applied to 100 snail and herb sellers and shells from 120 adult individuals of Archachatina marginata, Achatina achatina, Achatina fulica, Littorina littorea, Meretrix lusoria and Merceneria mercenaria were evaluated for their mineral components (Ca2+, Fe2+, Mg2+, Na+, Zn+, P+, K+) and proximate composition (crude protein, ash, fibre, crude fat and carbohydrate) using standard methods. Properties against fungi and bacteria isolates were also tested. These shells are used for bleaching, brushing, abrasion and others. The weight of the shells varied from 0.5g (L. littorea) to 25.00g (A. marginata) and thickness from 0.46mm in M .lusoria to 5.35mm in M. mercenaria. We found no inhibitory effect against fungi and bacterial isolates. The molluscs are high in carbohydrates (83.54-92.76g/100g) and low in protein (0.16-0.38g/100g). The fat content ranged between 0.42g/100g and 0.82g/100g, and ash between 2.14g/100g and 9.45g/100g. Ca2+ was the most abundant (10.25-96.35mg/g) while K+ was the least abundant (0.3-0.7mg/g) (p<0.05). Active ingredients of these shells can be used in the feed and construction industries.

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Influence of nature of catalyst on biodiesel synthesis via irradiation-aided transesterification of waste cooking oil-honne seed oil blend: Modeling and optimization by Taguchi design method

Energy Conversion and Management X ◽

10.1016/j.ecmx.2021.100119 ◽

2021 ◽

pp. 100119

Author(s):

Olayomi Abiodun Falowo ◽

Oluwakemi Esther Apanisile ◽

Adesola Oluwadamilola Aladelusi ◽

Ayooluwa Emmanuel Adeleke ◽

Mahamudat Abiodum Oke ◽

...

Keyword(s):

Seed Oil ◽

Design Method ◽

Waste Cooking Oil ◽

Taguchi Design ◽

Modeling And Optimization ◽

Cooking Oil ◽

Biodiesel Synthesis ◽

Oil Blend

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Sustainable Biodiesel Synthesis from Honne-Rubber-Neem Oil Blend with a Novel Mesoporous Base Catalyst Synthesized from a Mixture of Three Agrowastes

Catalysts ◽

10.3390/catal10020190 ◽

2020 ◽

Vol 10 (2) ◽

pp. 190 ◽

Cited By ~ 4

Author(s):

Olayomi A. Falowo ◽

Tunde V. Ojumu ◽

Omoniyi Pereao ◽

Eriola Betiku

Keyword(s):

Edible Oils ◽

Low Cost ◽

Environmentally Benign ◽

Base Catalyst ◽

Solid Catalysts ◽

Catalytic Potential ◽

Biodiesel Synthesis ◽

Cocoa Pod Husk ◽

Oil Blend

Application of solid catalysts synthesized from agricultural wastes provides an environmentally benign and low-cost process path to synthesize biodiesel. An ash containing an equal mixture of cocoa pod husk, plantain peel and kola nut pod husk ashes (CPK) was obtained by open combustion of each of the biomass in air and calcined at 500 °C for 4 h. The calcined CPK ash was characterized to determine its catalytic potential. Two-level transesterification technique was used to synthesize biodiesel using the developed catalyst. The process parameters involved were optimized for the microwave-aided transesterification of a blend of honne, rubber seed and neem oils in a volumetric ratio of 20:20:60, respectively. The study showed that the ash derived from combination of the biomass wastes provided a catalyst which consists all necessary catalytic ingredients in their relative abundance. The calcined CPK consists of 47.67% of potassium, 5.56% calcium and 4.21% magnesium attesting to its heterogenous status. The physisorption isotherms reveals that it was dominantly mesoporous in structure and made up of nanoparticles. A maximum of 98.45 wt.% biodiesel was obtained from a MeOH:oil blend of 12:1, CPK concentration of 1.158 wt.% and reaction time of 6 min under microwave irradiation. The quality of the synthesized biodiesel satisfied the requirements stipulated by standard specifications. Thus, this work demonstrates that a blend of agrowastes and mixtures of non-edible oils could be used to synthesize good quality and sustainable biodiesel that can replace fossil diesel.

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