CN109628173B - 一种以餐厨废油为原料的生物柴油的制备方法 - Google Patents
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Abstract
本发明提供了一种以餐厨废油为原料的生物柴油,成分按重量份计,包括以下步骤:将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中形成过滤层;将餐厨废油过过滤层收集油层;将磺酸和浓硫酸和蒸馏水混合搅拌均匀,加入油层搅拌反应;转入分液漏斗中静置分层后,取上层脂肪酸产物;将月桂酰谷氨酸、琥珀酸二异辛酯磺酸钠、改性大豆磷脂和环己烷混合,磁力搅拌;滴加1‑丁基‑3‑甲基咪唑四氟硼酸盐,继续搅拌;加入脂肪酸产物、乙醇和脂肪酶,反应即得。本法所制备的一种以餐厨废油为原料的生物柴油,生物柴油的制备方法简单,产率高。
Description
技术领域
本发明涉及一种以餐厨废油为原料的生物柴油的制备方法。
背景技术
生物柴油是一种新型的可再生绿色能源,它具有闪点高、抗爆性好、燃烧性能优良、能有效降低SOx,NOx等有害温室气体排放量等优点。生物柴油是一种高级脂肪酸酯类化合物,可以通过动植物油脂、餐饮废油等为原料与低级醇经过酯交换或酯化反应制备得到。在传统制备工艺中,常采用浓硫酸作为催化剂。浓硫酸催化时虽有较高催化活性,但存在易发生副反应,产品不易提纯,设备腐蚀严重,环境污染严重等缺点,工艺路线不符合当今社会可持续发展的要求。采用固体酸、金属盐类、离子液体等催化剂,虽然在一定程度上解决了传统催化剂存在的一些缺点,但它们仍存在相对活性低、表面易积碳、酸中心分布不均、再生困难等缺陷,从而限制了它们的应用。因此,研究开发新型的工艺,对于生物柴油的利用具有重要的意义。
发明内容
要解决的技术问题:提供一种以餐厨废油为原料的生物柴油的制备方法,制备方法简单,产率高。
技术方案:一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.5-1份磺酸和5-10份浓硫酸和45-50份蒸馏水混合搅拌均匀,加入45-50份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应6-8h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将2-5份月桂酰谷氨酸、3-5份琥珀酸二异辛酯磺酸钠、5-8份改性大豆磷脂和8-12份环己烷混合,磁力搅拌30-40min;
(6)滴加5-8份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌10-20min;
(7)加入10-20份脂肪酸产物、60-70份乙醇和脂肪酶,在30-35℃水浴条件下反应3-4h即得。
进一步的,所述步骤(1)中改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1。
进一步的,所述脂肪酶的量为脂肪酸产物的14wt%。
进一步的,所述改性聚丙烯纤维的制备方法为:
第一步:将微硅粉与聚丙烯树脂按质量比25:75的比例混合,加入双螺杆挤出机中反复挤出并造粒3次制得母粒,其中,挤出温度为190℃;
第二步:将母粒在干燥鼓风烘箱中100℃烘12h;
第三步:加入5wt%的马来酸酐接枝聚丙烯,通过熔融纺丝制备出纤维,其中,纺丝温度为235℃,卷绕速度为150m/min,定型温度为130℃;
第四步:均匀地平铺在低温等离子处理装置中的地电极上,在电源频率10-15kHz、工作电压20kV、放电功率70-80W条件下处理10-15min即得。
有益效果:
1.以餐厨废油为原料,有效的实现废物利用,取得很好的经济效果。
2.经本发明制备的一种以餐厨废油为原料的生物柴油制备方法简单,产率高。
具体实施方式
实施例1
一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层,其中,所述改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.5份磺酸和5份浓硫酸和45份蒸馏水混合搅拌均匀,加入45份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应6h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将2份月桂酰谷氨酸、3份琥珀酸二异辛酯磺酸钠、5份改性大豆磷脂和8份环己烷混合,磁力搅拌30min;
(6)滴加5份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌10min;
(7)加入10份脂肪酸产物、60份乙醇和脂肪酶,在30℃水浴条件下反应3h即得。
采用气相色谱法检测生物柴油的转化率,生物柴油产率为95.2%。
实施例2
一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层,其中,所述改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.6份磺酸和6份浓硫酸和47份蒸馏水混合搅拌均匀,加入47份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应6.5h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将3份月桂酰谷氨酸、3.5份琥珀酸二异辛酯磺酸钠、6份改性大豆磷脂和9份环己烷混合,磁力搅拌32min;
(6)滴加6份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌12min;
(7)加入12份脂肪酸产物、62份乙醇和脂肪酶,在33℃水浴条件下反应3.5h即得。
生物柴油产率为95.7%。
实施例3
一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层,其中,所述改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.8份磺酸和8份浓硫酸和48份蒸馏水混合搅拌均匀,加入48份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应7h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将4份月桂酰谷氨酸、4份琥珀酸二异辛酯磺酸钠、7份改性大豆磷脂和10份环己烷混合,磁力搅拌35min;
(6)滴加7份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌15min;
(7)加入15份脂肪酸产物、65份乙醇和脂肪酶,在34℃水浴条件下反应3.5h即得。
生物柴油产率为96.1%。
实施例4
一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层,其中,所述改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.9份磺酸和9份浓硫酸和49份蒸馏水混合搅拌均匀,加入49份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应7h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将4份月桂酰谷氨酸、4.5份琥珀酸二异辛酯磺酸钠、7份改性大豆磷脂和11份环己烷混合,磁力搅拌35min;
(6)滴加7份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌15min;
(7)加入18份脂肪酸产物、68份乙醇和脂肪酶,在34℃水浴条件下反应3.5h即得。
生物柴油产率为95.8%。
实施例5
一种以餐厨废油为原料的生物柴油,成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层,其中,所述改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1:1;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将1份磺酸和10份浓硫酸和50份蒸馏水混合搅拌均匀,加入50份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应8h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将5份月桂酰谷氨酸、5份琥珀酸二异辛酯磺酸钠、8份改性大豆磷脂和12份环己烷混合,磁力搅拌40min;
(6)滴加8份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌20min;
(7)加入20份脂肪酸产物、70份乙醇和脂肪酶,在35℃水浴条件下反应4h即得。
生物柴油产率为95.4%。
Claims (4)
1.一种以餐厨废油为原料的生物柴油,其特征在于:成分按重量份计,制备方法包括以下步骤:
(1)将改性聚丙烯纤维、四氧化三铁粉末、磷矿粉和聚合硫酸铁混合均匀,装入玻璃管中,形成过滤层;
(2)将餐厨废油过过滤层后,收集过滤后得到的油层;
(3)将0.5-1份磺酸和5-10份浓硫酸和45-50份蒸馏水混合搅拌均匀,加入45-50份油层,装上冷凝水回流管,放入磁力油浴锅在温度100℃下搅拌反应6-8h;
(4)转入分液漏斗中静置分层后,取上层脂肪酸产物;
(5)将2-5份月桂酰谷氨酸、3-5份琥珀酸二异辛酯磺酸钠、5-8份改性大豆磷脂和8-12份环己烷混合,磁力搅拌30-40min;
(6)滴加5-8份1-丁基-3-甲基咪唑四氟硼酸盐,继续搅拌10-20min;
(7)加入10-20份脂肪酸产物、60-70份乙醇和脂肪酶,在30-35℃水浴条件下反应3-4h即得。
2.根据权利要求1所述的一种以餐厨废油为原料的生物柴油,其特征在于:所述步骤(1)中改性聚丙烯纤维、四氧化三铁粉末和聚合硫酸铁的重量比为8:2:1。
3.根据权利要求1所述的一种以餐厨废油为原料的生物柴油,其特征在于:所述脂肪酶的量为脂肪酸产物的14wt%。
4.根据权利要求1所述的一种以餐厨废油为原料的生物柴油,其特征在于:所述改性聚丙烯纤维的制备方法为:
第一步:将微硅粉与聚丙烯树脂按质量比25:75的比例混合,加入双螺杆挤出机中反复挤出并造粒3次制得母粒,其中,挤出温度为190℃;
第二步:将母粒在干燥鼓风烘箱中100℃烘12h;
第三步:加入5wt%的马来酸酐接枝聚丙烯,通过熔融纺丝制备出纤维,其中,纺丝温度为235℃,卷绕速度为150m/min,定型温度为130℃;
第四步:均匀地平铺在低温等离子处理装置中的地电极上,在电源频率10-15kHz、工作电压20kV、放电功率70-80W条件下处理10-15min即得。
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