Pineapple (Ananas comosus) leaves ash as a solid base catalyst for biodiesel synthesis

被引：98

作者：

Barros, Silma de S. ^{[1
]}

Pessoa Junior, Wanison A. G. ^{[2
]}

Sa, Ingrity S. C. ^{[1
]}

Takeno, Mitsuo L. ^{[2
]}

Nobre, Francisco X. ^{[3
]}

Pinheiro, William ^{[4
]}

Manzato, Lizandro ^{[1
,2
]}

Iglauer, Stefan ^{[5
]}

de Freitas, Flavio A. ^{[6
]}

机构：

[1] Univ Fed Amazonas, PPGCEM, Dept Engn Mat, Av Octavio Hamilton Botelho Mourao Coroado, BR-69067005 Manaus, Amazonas, Brazil

[2] Inst Fed Educ Ciencia & Tecnol Amazonas IFAM, CMDI, Av Gov Danilo de Matos Areosa 1672, BR-69075351 Manaus, Amazonas, Brazil

[3] Inst Fed Educ Ciencia & Tecnol Amazonas IFAM, Estr Coari Itapeua S-N, BR-69460000 Coari, Amazonas, Brazil

[4] INPA, Inst Nacl Pesquisas Amazonia, Av Andre Araujo 2936, BR-69067375 Manaus, Amazonas, Brazil

[5] Edith Cowan Univ, Petr Engn Dept, 270 Joondalup Dr, Joondalup, WA 6027, Australia

[6] SUFRAMA, CBA, Ctr Biotecnol Amazonia, Av Gov Danilo de Matos Areosa 690, BR-69075351 Manaus, Amazonas, Brazil

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 312卷

关键词：

Pineapple waste problems; Heterogeneous catalysis; Transesterification; Biodiesel; HETEROGENEOUS CATALYST; OIL; PEELS; TRANSESTERIFICATION; OPTIMIZATION; TEMPERATURE; PEDUNCLE;

D O I：

10.1016/j.biortech.2020.123569

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Homogeneous catalysts used for biodiesel synthesis have several limitations, including non-recoverability/reusability, saponification, emulsification, equipment corrosion, and environmental pollution. To overcome these limitations, we synthesized a novel catalyst via calcination of pineapple leaves waste. This catalyst was characterized by X-ray powder diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and soluble alkalinity measurements. The catalyst's activity with regards to soybean oil transesterification was analyzed, and multiple process parameters (temperature, catalyst amount, reaction time, and methanol:oil molar ratio) were examined. A high catalytic activity, probably related to the 85 wt% content of alkali/alkali metals (K, Ca and Mg), was observed after a 30 min reaction time, 60 degrees C, 4 wt% of catalyst, oil to methanol molar ratio of 1:40, reaching an oil to biodiesel conversion above 98%. We conclude that the novel catalyst presented here is efficient, cost-effective, and sustainable, while simultaneously abundant waste is reduced.

引用

页数：7

共 49 条

[1] K+ trapped kaolinite (Kaol/K+) as low cost and eco-friendly basic heterogeneous catalyst in the transesterification of commercial waste cooking oil into biodiesel [J].