Sanitary Ware Waste as a Source for a Valuable Biodiesel Catalyst
Sanitary Ware Waste as a Source for a Valuable Biodiesel Catalyst
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DOI：
10.1155/2022/1232110
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发表时间：
2022-05-19
影响因子：
3
通讯作者：
Roushdy, Mai Hassan
中科院分区：
文献类型：
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作者：
Roushdy, Mai Hassan
生物燃料是一种利用现代技术由生物质制成的燃料，而不是通过导致化石燃料发展的相对缓慢的地质过程。在欧洲，生物柴油是使用最广泛的生物燃料。卫浴行业产生大量的危险废物，如废石膏模具等。这些模具被破碎、粉碎，并与 NaCO3 反应生成 CaCO3，然后加热生成 CaO。生成的 CaO 催化废煎炸油和甲醇之间的反应，用于合成生物柴油。为了评价反应参数对生物柴油生产的影响，选择的独立反应参数如下：反应温度在50-70℃范围内，甲醇与油(M:O)摩尔比在9-15范围内，催化剂负载量在1-5%范围内，时间在2-6小时范围内。评估了独立因素对反应依赖性响应的影响，发现反应温度和甲醇与油的比例对生物柴油收率有主要影响。已经研究了反应条件优化，以在最低反应条件下最大化生物柴油产量。最佳工艺条件为M:O摩尔比15:1、催化剂用量1%、反应温度53.6℃、反应时间2h，生物柴油收率93.4%。结果表明，所得生物柴油催化剂（CaO）可一次性使用；然后，将使用新鲜的催化剂。
Biofuel is a type of fuel that is made from biomass using modern techniques rather than the relatively slow geological processes that lead to the development of fossil fuels. In Europe, biodiesel is the most widely used biofuel. The sanitary ware industry generates a lot of hazardous waste, such as waste gypsum molds. These molds are broken, pulverized, and reacted with NaCO3 to make CaCO3, which is then heated to produce CaO. The resulting CaO catalyzes the reaction between waste frying oil and methanol for biodiesel synthesis. To evaluate the effect of reaction parameters on the production of biodiesel, the independent reaction parameters that were chosen are as follows: reaction temperature in the range 50-70 degrees C, methanol to oil (M:O) molar ratio in the range 9-15, catalyst loading in the range 1-5%, and time in the range 2-6 hrs. The influence of the independent factors on the reaction-dependent responses was evaluated and it was found that reaction temperature and methanol-to-oil ratio have a major effect on the biodiesel yield. Reaction condition optimization has been studied to maximize biodiesel yield at minimum reaction conditions. The optimum process conditions are 93.4% biodiesel yield at an M:O molar ratio of 15 : 1, catalyst loading of 1%, reaction temperature of 53.6 degrees C, and reaction time of 2 h. The results showed that resulted biodiesel catalyst (CaO) can be used one time; then, a fresh catalyst will be used.