Preparation of biodiesel from waste restaurant grease by acid catalyzed two-step raising temperature process
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 3
Abstract
The recovered waste restaurant grease is pretreated and use as feedstock for preparation of biodiesel by transesterification with methanol catalyzed by H2SO4 in a two-step raising temperature process. The effects of reaction parameters are observed and the optimized reaction conditions are obtained as follows: catalyst loading 5% volume of grease, molar ratio of methanol to grease 20:1, reaction temperature 150℃, and reaction time 2.5 hours. The yield of biodiesel reachs 93% in the optimized conditions. The quality of prepared biodiesel matchs the ASTM PS121–99 standard.
Authors and Affiliations
LI Huaiping WANG Xin
Keywords
Related Articles
- EP ID EP96745
- DOI -
- Views 100
- Downloads 0
The design of LINC transmitter based on FPGA
With the development of digital communication, non-constant envelope modulation techniques with high frequency efficiency, such as QAM, OFDM, are paid more attention on. However, these modulation techniques require power...
Theories and comparison of several methods for measuring layer charge density of montmorillonites
Layer charge is the main parameter of montmorillonite, it determines the properties, processing methods and applications of montmorillonite. In this paper, the research status quo of the methods for determination of laye...
ZnO纳米结构制备及其器件研究
综述了氧化锌纳米材料制备技术和器件应用的研究进展，着重介绍了氧化锌的气相和液相合成方法，并讨论了一些重要的生长条件控制因素，同时总结了纳米氧化锌作为一种新型功能材料在场效应晶体管、肖特基二极管、紫外光探测器、气敏传感器、...
纳米晶CuAl2O4的合成、表征及光催化性能研究
本文通过有机物前驱体法制备尖晶石型CuAl2O4纳米晶，利用TG-DTA、XRD、TEM、UV-VIS等分析手段表征了前驱体和CuAl2O4粉体。结果表明，CuAl2O4在热处理中出现了CuO中间相，经900℃焙烧得到单相CuAl2O4。800℃的CuAl2O4的禁带宽度为1.92 eV，...
Application of FLUENT in simulating changes of<br /> pollutant concentration in students’ dormitory<br />
Using numerical simulation technology to model the indoor environment is helpful for analyzing and evaluating the indoor micro-environment formed by air flow. FLUENT is used in this study to simulate the changes of pollu...