Progress in Research of Lewis Acid Ionic Liquids Used as Catalyst in Biodiesel Synthesis

2013 ◽  
Vol 773 ◽  
pp. 181-187 ◽  
Author(s):  
Ben Yong Han ◽  
Wu Di Zhang ◽  
Yu Bao Chen ◽  
Fang Yin ◽  
Shi Qing Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Lewis Acid ◽  
Low Cost ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
The Cost ◽  
Production Preparation ◽  
Catalytic Reaction Mechanism

onic liquid is a green catalyzer and solvent which can be designed by changing the structure of its cation or anion. Ionic liquid has been used in diverse chemical reactions. Especially, Ionic liquids as environmentally friendly catalysts were applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. In this paper, the advances in the Lewis acid ionic liquids catalysts and their application in biodiesel production were reviewed. The characterization of the ionic liquids were summarized. The catalytic reaction mechanism of the Lewis acid ionic liquids in the biodiesel production was discussed. In addition, the prospect for the application of the Lewis acid ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

A Review on Biodiesel Synthesis Using Catalyzed Transesterification Base Ionic Liquids as Catalyst

2013 ◽  
Vol 772 ◽  
pp. 303-308 ◽  
Author(s):  
Ben Yong Han ◽  
Wu Di Zhang ◽  
Yu Bao Chen ◽  
Fang Yin ◽  
Shi Qing Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Reactions ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
The Cost ◽  
Production Preparation

onic liquid is a green catalyzer and solvent which can be designed by changing the structure of its cation or anion. Ionic liquid has been used in diverse chemical reactions. Especially, Ionic liquids as environmentally friendly catalysts were applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. In this paper, the advances in the base ionic liquids catalysts and their application in biodiesel production were reviewed. The characterization of the ionic liquids were summarized. In addition, the prospect for the application of the basic ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

Progress in Research of Brønsted Acid Ionic Liquid Catalysts for Synthesis of Biodiesel through Esterification of Fatty Acids

2013 ◽  
Vol 389 ◽  
pp. 40-45
Author(s):  
Ben Yong Han ◽  
Rong Qun Deng ◽  
Tao Li ◽  
Xiang Feng Xiong ◽  
Chao Yin Chen
Keyword(s):  
Fatty Acids ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Low Cost ◽  
Biodiesel Production ◽  
Separation And Purification ◽  
Transportation Fuel ◽  
Energy Consuming ◽  
The Cost ◽  
Production Preparation

Biodiesel has attracted considerable interest in recent years as an alternative, biodegradable and nonpolluting transportation fuel. Conventional alkaline process for biodiesel production are energy consuming and generate undesirable by-products such as soaps, that make difficult the separation and purification of biodiesel. Ionic liquids as environmentally benign chemical solvent, had been used in diverse chemical reactions. Especially, they could be applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. Ionic liquids can improve the catalytic activity and they have wide utilization prospect in biodiesel preparation. In this paper, the advances in the Brønsted ionic liquids catalysts and their application in biodiesel production through esterification of fatty acids were reviewed. In addition, the prospect for the application of the ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

A Review on Brønsted Acid Ionic Liquids Catalysts for Biodiesel Synthesis through Transesterification

2013 ◽  
Vol 389 ◽  
pp. 46-52 ◽  
Author(s):  
Ben Yong Han ◽  
Tao Li ◽  
Rong Qun Deng ◽  
Xiang Feng Xiong ◽  
Chao Yin Chen
Keyword(s):  
Ionic Liquids ◽  
Low Cost ◽  
Biodiesel Production ◽  
Environmentally Benign ◽  
Separation And Purification ◽  
Transportation Fuel ◽  
Biodiesel Synthesis ◽  
Energy Consuming ◽  
The Cost ◽  
Production Preparation

Biodiesel has attracted considerable interest in recent years as an alternative, biodegradable and nonpolluting transportation fuel. Conventional alkaline process for biodiesel production are energy consuming and generate undesirable by-products such as soaps, that make difficult the separation and purification of biodiesel. Ionic liquids as environmentally benign chemical solvent, had been used in diverse chemical reactions. Especially, they could be applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. Ionic liquids can improve the catalytic activity and they have wide utilization prospect in biodiesel preparation. In this paper, the advances in the Brønsted ionic liquids catalysts and their application in biodiesel production through transesterification of oils and fats were reviewed. In addition, the prospect for the application of the ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

scholarly journals Evaluation of Shell-Derived Calcium Oxide Catalysts for the Production of Biodiesel Esters from Cooking Oils

2021 ◽  
pp. 20-27
Author(s):  
Ngee Sing Chong ◽  
Francis Uchenna Okejiri ◽  
Saidi Abdulramoni ◽  
Shruthi Perna ◽  
Beng Guat Ooi
Keyword(s):  
Calcium Oxide ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
X Ray ◽  
Cooking Oil ◽  
Biodiesel Synthesis ◽  
Cooking Oils ◽  
The Cost ◽  
Percentage Conversion

Due to the high cost of feedstock and catalyst in biodiesel production, the viability of the biodiesel industry has been dependent on government subsidies or tax incentives. In order to reduce the cost of production, food wastes including eggshells and oyster shells have been used to prepare calcium oxide (CaO) catalysts for the transesterification reaction of biodiesel synthesis. The shells were calcined at 1000 °C for 4 hours to obtain CaO powders which were investigated as catalysts for the transesterification of waste cooking oil. The catalysts were characterized by Fourier Transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), X-ray powder diffraction (XRD), and X-ray fluorescence (XRF) spectroscopy. Reaction parameters such as methanol-to-oil molar ratio, CaO catalyst concentration, and reaction time were evaluated and optimized for the percentage conversion of cooking oil to biodiesel esters. The oyster-based CaO showed better catalytic activity when compared to the eggshell-based CaO under the same set of reaction conditions.

Separation and characterization of cellulose I material from corn straw by low-cost polyhydric protic ionic liquids

Cellulose ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. 3241-3254 ◽  
Author(s):  
Shaoqi Yang ◽  
Xingmei Lu ◽  
Yaqin Zhang ◽  
Junli Xu ◽  
Jiayu Xin ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Low Cost ◽  
Cellulose I ◽  
Corn Straw ◽  
Protic Ionic Liquids

Chlorocuprate(i) ionic liquid as an efficient and stable Cu-based catalyst for hydrochlorination of acetylene

2019 ◽  
Vol 9 (11) ◽  
pp. 2868-2878 ◽  
Author(s):  
Yanfei Ren ◽  
Botao Wu ◽  
Fumin Wang ◽  
Hang Li ◽  
Guojun Lv ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Low Cost ◽  
Cost Efficient

Chlorocuprate(i) ionic liquids can be well-stabilized, low-cost, efficient and green non-mercury catalysts for hydrochlorination of acetylene.

Synthesis and Characterization of Super-Molecular Ionic Liquids

2011 ◽  
Vol 197-198 ◽  
pp. 906-910
Author(s):  
Hui Ru Liu ◽  
Li Qiang Lv ◽  
Xing Chen Zhang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Melting Point ◽  
Quantum Chemical ◽  
Organic Molecules ◽  
Raw Materials ◽  
Ammonium Thiocyanate ◽  
Molar Ratio ◽  
Molecular Ion

This study concerned a novel super-molecular ionic liquid synthesized by ammonium thiocyanate and caprolactam. The physical characters such as melting point and electric conductivity were investigated. Results showed that the melting point is -12.2°C at the molar ratio of 3:1 (caprolactam/ammonium thiocyanate), which is much lower than raw materials. The electric conductivities of synthesized ionic liquids were close to that of imidazole ILs. The structure of ionic liquid was characterized by IR,1HNMR and quantum chemical calculations. It was shown that the NH4+cation connected with caprolactam organic molecules by hydrogen bonds, leading to the forming of a super-molecular ion. The electrostatic attraction of super-molecular ion with anion was decreased because of the larger volume of super-molecular ion than original cation, thus the melting point decreased. The key properties that distinguish super-molecular ionic liquid from other ILs were the presence of supermolecular ion, which can be used to build up a hydrogen-bonded network. This type ion liquid was named as super-molecular ion liquid.

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