Biodiesel from low cost feedstocks: The effects of process parameters on the biodiesel yield

Hoque, Enamul; Singh, A. L.; Chuan, Yong Leng

doi:10.1016/j.biombioe.2010.12.024

Cited by 103 publications

(56 citation statements)

References 11 publications

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“…The schematics of both these major reactions are outlined in Commercialization of biodiesel presently is constrained by two major problems: process economics of production and debate on food versus fuel. The cost of production of biodiesel without government support through subsidies is almost 1.5-2 times that of petroleum diesel [5,6]. Specifically, in terms of high biodiesel process costs, 70-95% of the total biodiesel production cost is attributed to the cost of raw materials (e.g.…”

Section: Introductionmentioning

confidence: 99%

A new green process for biodiesel production from waste oils via catalytic distillation using a solid acid catalyst – Modeling, economic and environmental analysis

Gaurav

Rempel

2016

Green Energy & Environment

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The challenges in the chemical processing industry today are environmental concerns, energy and capital costs. Catalytic distillation (CD) is a green reactor technology which combines a catalytic reaction and separation via distillation in the same distillation column. Utilization of CD in chemical process development could result in capital and energy savings, and the reduction of greenhouse gases. The efficacy of CD and the economic merits, in terms of energy and equipment savings, brought by CD for the production of biodiesel from waste oil such as yellow grease is quantified. Process flow sheets for industrial routes for an annual production of 10 million gallon ASTM purity biodiesel in a conventional process (reactor followed by distillation) and CD configurations are modeled in Aspen Plus.Material and energy flows, as well as sized unit operation blocks, are used to conduct an economic assessment of each process. Total capital investment, total operating and utility costs are calculated for each process. The waste oil feedstock is yellow grease containing both triglyceride and free fatty acid. Both transesterification and esterification reactions are considered in the process simulations. Results show a significant advantage of CD compared to a conventional biodiesel processes due to the reduction of distillation columns, waste streams and greenhouse gas emissions. The significant savings in capital and energy costs together with the reduction of greenhouse gases demonstrate that process intensification via CD is a feasible and new green process for the biodiesel production from waste oils.

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Section: Introductionmentioning

confidence: 99%

A new green process for biodiesel production from waste oils via catalytic distillation using a solid acid catalyst – Modeling, economic and environmental analysis

Gaurav

Rempel

2016

Green Energy & Environment

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show abstract

“…It was found that the optimal methanol/oil mole ratio was 9. This was because transesterification is the reversible reaction and hence requires a higher amount of methanol to shift the reaction [10,17,18,19,21]. However, an excessive amount of methanol will also hinder the reaction rate because it would increase the solubility of the by-product glycerol, for the reverse reaction [22,23].…”

Section: Effect Of Methanol/oil Mole Ratio On Biodiesel Yieldmentioning

confidence: 93%

Integrated flow reactor that combines high-shear mixing and microwave irradiation for biodiesel production

Choedkiatsakul

Ngaosuwan

Assabumrungrat

et al. 2015

Biomass and Bioenergy

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“…The increased yield of biodiesel with the increase amount of KOH as catalyst was believed to be due to the Figure 2. Effect of different type alcohol to oil molar ratio on biodiesel yield with KOH as a catalyst at reaction temperature 35 o C increased solubility of methanol into feedstock oils that enhanced biodiesel conversion reaction [22].…”

Section: Effect Of Catalyst Concentrationmentioning

confidence: 99%

Rapid Alcoholysis of Jatropha Curcas Oil for Biodiesel Production Using Ultrasound Irradiation

Irwan

Saidi

Rachman

et al. 2017

Bull. Chem. React. Eng. Catal.

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The biodiesel synthesis through alcoholysis process of triglyceride from Jatropha curcas using different type of alcohol, such as: methanol, ethanol, isopropyl alcohol and tert-butanol, was conducted in the presence of potassium hydroxide (KOH) as a catalyst under 35 kHz frequency ultrasound irradiation. The optimum conditions, such as: alcohol to jatropha oil molar ratio, concentration of catalyst, reaction temperature, and reaction time, were found to be 7:1 of alcohol to jatropha oil molar ratio, 0.5 % of KOH, temperature of reaction at 35 0 C, within the reaction times of 15 minutes. The results obtained for the different types of alcohol were 62.77 %, 57.93 %, 51.64 %, and 46.77 % for methanol, ethanol, isopropyl alcohol, and tert-butanol, respectively.

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Biodiesel from low cost feedstocks: The effects of process parameters on the biodiesel yield

Cited by 103 publications

References 11 publications

A new green process for biodiesel production from waste oils via catalytic distillation using a solid acid catalyst – Modeling, economic and environmental analysis

A new green process for biodiesel production from waste oils via catalytic distillation using a solid acid catalyst – Modeling, economic and environmental analysis

Integrated flow reactor that combines high-shear mixing and microwave irradiation for biodiesel production

Rapid Alcoholysis of Jatropha Curcas Oil for Biodiesel Production Using Ultrasound Irradiation

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