【DOC】廢棄食用油制備生物柴油技術(shù)獲國家發(fā)明專利授權(quán)

1、廢棄食用油制備生物柴油技術(shù)獲國家發(fā)明專利授權(quán)中國科學院蘭州化學物理研究所精細石油化工中間體國家工程研究中心鈷鹽催化劑研發(fā)課題組近年來開展了用廢棄食用油制備生物柴油的技術(shù)研究，并于近日獲得國家發(fā)明專利（廢棄食用油制備生物柴油的方法，專利號：ZL200610043018.5）。該課題組將廢棄食用油去雜質(zhì)、脫水進行預處理，然后加入無水乙醇作為萃取劑脫酸，再加入堿性復合催化劑和甲醇溶液在3060下酯化0.51.5小時，最后經(jīng)過分離、蒸餾得到生物柴油。通過該技術(shù)得到的生物柴油最高收率達到92.4%。該技術(shù)所用原料可以是下腳料、餐飲廢油或是兩者的混合物，原料易得、成本低廉。與國內(nèi)現(xiàn)有技術(shù)相比，該技術(shù)還具有

2、催化劑效率較高、生產(chǎn)工藝簡單、反應周期短和反應溫度低等優(yōu)點。生物柴油是以油料作物、野生油料植物和工程微藻等水生植物油脂以及動物油脂、餐飲垃圾油等為原料油，通過酯交換工藝制成的可代替石化柴油的再生性柴油燃料，是生物質(zhì)能的一種，其突出的環(huán)保性和可再生性引起世界發(fā)達國家，尤其是資源貧乏國家的高度重視，成為很多國家積極開展的研究課題。據(jù)統(tǒng)計，我國每年消耗植物油1200萬噸，大中型城市餐飲業(yè)產(chǎn)生廢棄食用油達到500萬噸，榨油廠直接產(chǎn)生下腳酸化油250萬噸。目前，利用我國的餐飲廢油、榨油廠油腳、庫存過期油料和林木油果等價格合理的原料，可以支持大規(guī)模的生物柴油產(chǎn)業(yè)。專家預測，若在未來建立更多穩(wěn)定的油料來源，

3、我國生物柴油產(chǎn)業(yè)規(guī)模將會不斷擴大。The Technology of Preparing Biodiesel from Abandoned Edible Oil Receives PatentThe technology of biodiesel preparation from abandoned edible oil developed by the National Engineering Research Center of Fine Petrochemical Intermediates received a national invention patent on August 1

4、8, 2010. (Patent No. ZL200610043018.5)As described in the patent, researchers remove impurities from the abandoned edible oil and dehydrate it, and then add ethanol as an extractant to deacidificate the oil. With the alkaline compound catalyst and methanol solution added, the oil is esterified under

5、 30 to 60 for 0.5 to 1.5 hours and the biodiesel is obtained after separation and distillation. The maximum yield rate of biodiesel gained in this way can reach 92.4%. The raw materials of the technology can be oil scrap, waste cooking oil or the mixture of the two. Compared with other technologies in China, it has the advantages of high efficiency, short reaction time and low reaction temperature. According to statistics, China consumed 1,200 million tons of plant oil each year. If the abandoned edible oil can be supplied in a reasonable price