Conversion of microalgal lipids to biodiesel using chromium-aluminum mixed oxide as a heterogeneous solid acid catalyst

Guldhe, Abhishek; Moura, Carla Verônica Rodarte de; Singh, Poonam; Rawat, Ismail; Moura, Edmílson Miranda de; Sharma, Yogesh Chandra; Bux, Faizal

doi:10.1016/j.renene.2016.12.053

Cited by 107 publications

(31 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…FFA conversion is directly affected by temperature, when increased from 323.15 K to 333.15 K, as highlighted in previous works [31,32]. In an attempt to optimize FAME yield, 98.28% of FFA conversion was achieved when 353.15 K of reaction temperature was employed, as reported elsewhere [33].…”

Section: Surface Propertiessupporting

confidence: 58%

“…Therefore, we adopted 10:1 as our optimized reaction condition for the methanol-PFAD molar ratio. In previous studies, where the molar ratio of 15:1 methanol: oil was used, a 98.28% fatty acid conversion was achieved [33], while another report recorded a molar ratio of 24:1 [39]. Thus, the results we have reported in this work have outperformed other scholarly works based on the concentration of methanol: PFAD used.…”

Section: Molar Ratio Of Methanol: Pfadsupporting

confidence: 54%

See 1 more Smart Citation

Esterification of Palm Fatty Acid Distillate for Biodiesel Production Catalyzed by Synthesized Kenaf Seed Cake-Based Sulfonated Catalyst

et al. 2019

View full text Add to dashboard Cite

Sulfonated kenaf seed cake (SO3H-KSC) catalyst, was synthesized to aid biodiesel production from palm fatty acid distillate (PFAD). It was chemically activated with phosphoric acid for an impregnation period of 24 h in order to enhance the porosity and the specific surface area of kenaf seed cake (KSC). After the carbonization and sulfonation, the resultant catalyst was characterized with powder X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscope (FESEM), NH3-temperature programmed desorption (NH3-TPD) and thermogravimetric analysis (TGA). The SO3H-KSC catalyst was amorphous in nature and had an acid density of 14.32 mmol/g, specific surface area of 365.63 m2/g, pore volume of 0.31 cm3/g and pore diameter of 2.89 nm. At optimum esterification conditions--reaction time 90 mins, temperature of 338 K, methanol:PFAD molar ratio of 10:1 and catalyst concentration of 2 wt.%—a free fatty acid (FFA) conversion of 98.7% and fatty acid methyl esters (FAME) yield of 97.9% was achieved. The synthesized SO3H-KSC catalyst underwent five reaction cycles while maintaining a fatty acid methyl esters (FAME) yield and free fatty acid (FFA) conversion of >90%. Thus, the SO3H-KSC catalyst was shown to be an excellent application of bio-based material as a precursor for catalyst synthesis for esterification of PFAD.

show abstract

Section: Surface Propertiessupporting

confidence: 58%

Section: Molar Ratio Of Methanol: Pfadsupporting

confidence: 54%

Esterification of Palm Fatty Acid Distillate for Biodiesel Production Catalyzed by Synthesized Kenaf Seed Cake-Based Sulfonated Catalyst

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Biodiesel is considered to be one of the best alternative fuel candidates as a substitute for diesel because it can be used as a blend in a conventional diesel engine without modification of the engine. Biodiesel from vegetable oil is a renewable, clean, and environmentally friendly energy [12][13][14]. Transesterification is the most widely used method commercially for biodiesel production between vegetable oils with alcohols [15].…”

Section: Introductionmentioning

confidence: 99%

Coconut husk ash as heterogenous catalyst for biodiesel production from cerbera manghas seed oil

et al. 2018

View full text Add to dashboard Cite

The research on the use of coconut husk as a solid catalyst for transesterification reaction of Cerbera manghas oil into biodiesel has been done. The aim of this study is to investigate the performance of coconut husk ash for biodiesel production from Cerbera manghas seed oil. Coconut husk is prepared by burning in air to obtain potassium oxide as active phase. The coconut husk is analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD spectrum shows that the peak characteristics of potassium oxide can be observed in the diffractogram. The particle size of the catalyst ranging from 1 - 3 μm with pentagonal structure. The coconut husk ash solid catalyst is used in the transesterification reaction of Cerbera manghas oil in a batch reactor. Biodiesel yield of 88.6% can be achieved over coconut husk ash catalyst, using a 10 wt.% of catalyst, reaction temperature at 3 hours, and a methanol-to-oil ratio of 6: 1. This solid catalyst can be separated easily from the reaction system and not soluble in methanol or methyl esters. The coconut husk ash catalyst is high potential to be developed as one of the solid catalysts to convert Cerbera manghas oil to biodiesel.

show abstract

“…The characteristics of biodiesel play a key role in the engine performance and stability. The various crucial properties of the obtained biodiesel were evaluated and compared with American Society for Testing and Materials (ASTM) and European Standard (EN) standards as presented in Table . Similarly, the GC‐MS spectrum of the synthesized biodiesel and the major fatty acid esters are given in Figure and Table , respectively.…”

Section: Resultsmentioning

confidence: 99%

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

et al. 2019

View full text Add to dashboard Cite

Summary The present work describes the synthesis of porous BaSnO3 by eco‐friendly sol‐gel method using albumin as a bio‐template agent, and its application as a solid base catalyst in biodiesel production from waste cooking oil. The physico‐chemical, textural, and morphological properties of the catalyst were evaluated by X‐ray diffraction (XRD), Brunauer‐Emmett‐Teller (BET), field emission scanning electron microscopy (FESEM), and temperature programmed desorption (TPD)–CO2 techniques. The synthesized catalyst showed considerable stability, efficient catalytic activity, and negligible metal leaching. The satisfactory performance of the catalyst could be ascribed to the presence of basic sites of different strength on the surface of the catalyst. The catalyst produced maximum biodiesel yield of 96% at optimum reaction conditions of 90°C reaction temperature, methanol to oil molar ratio of 10:1, catalyst dosage of 6 wt%, and reaction time of 2 hours. Moreover, the catalyst showed substantial reusability up to five reaction cycles without any considerable decrease in transesterification activity.

show abstract

Conversion of microalgal lipids to biodiesel using chromium-aluminum mixed oxide as a heterogeneous solid acid catalyst

Cited by 107 publications

References 30 publications

Esterification of Palm Fatty Acid Distillate for Biodiesel Production Catalyzed by Synthesized Kenaf Seed Cake-Based Sulfonated Catalyst

Esterification of Palm Fatty Acid Distillate for Biodiesel Production Catalyzed by Synthesized Kenaf Seed Cake-Based Sulfonated Catalyst

Coconut husk ash as heterogenous catalyst for biodiesel production from cerbera manghas seed oil

A green route for biodiesel production from waste cooking oil over base heterogeneous catalyst

Contact Info

Product

Resources

About