Is that correct we will have one or our product is water ?If yes when and how can I passing this problem ?
The following literature may be useful for your research
Astract: Heterogeneous transesterification of waste cooking oil (WCO) with methanol in thepresence of heteropoly acid (HPA) catalyst have been investigated. The effect ofdifferent operation parameters such as methanol to oil molar ratio, catalyst loading,reaction temperature, and reaction time were evaluated. The 88.6% conversion wasobtained at the optimum condition of 70:1 methanol to oil molar ratio, 65 ˚C reaction temperature, 10 wt% catalyst, and 14 h reaction time.
Materials and methods;Waste cooking oil was obtained from a local restaurant in Universiti TeknologiMalaysia (UTM) and used without any purification. The heteropoly acid(H3PW12O40.6H2O) catalyst, methanol >99% purity, KOH, and standard materials forGC/MS were obtained from Sigma Aldrich company (Malaysia). The acid value wasdetermined by the titration technique and the free fatty acid composition wasdetermined by gas chromatograph mass spectroscopy (GC/MS). The column wasAgilent 190915-433 HP-5MS (30mm 250mm 0.25mm) and the carries gas was heliumand the temperature was 200 ˚C.
Transterification: The transesterification reaction was carried out in a 500 ml three neck flask, with athermometer, stirrer and condenser. For each run the mixture of methanol and catalystwas preheated to the desired temperature and after that the oil that separately heated to suitable temperature add to it with 300 rpm mixing intensity. After the reactioncompletion, the mixture was heated to 90 ˚C for 3 h to evaporate excess methanol, andthen the mixture changes to two phases. The upper layer was methyl ester or biodiesel and the lower phase was glycerin. In addition, the catalyst can be separated easily with a simple filtration process and can be reused many times. Because there is no catalyst in the final product, the final product does not need washing Thus, this reaction does not produce any waste water and hence environment-friendly.
REF:Biodiesel Production from High Free Fatty Acid
Waste Cooking Oil by Solid Acid Catalyst
A. Talebian-Kiakalaieh, N. A. S. Amin*, A. Zarei, H. Jaliliannosrati
Proceedings of the 6th International Conference on Process Systems Engineering (PSE ASIA)
25 - 27 June 2013, Kuala Lumpur.
www.sps.utm.my/download/PSEAsia2013-94.pdf
Please read the papers:
Carina Domingues, M. Joana Neiva Correia, Renato Carvalho, Carlos Henriques, João Bordado, Ana Paula Soares Dias, Vanadium phosphate catalysts for biodiesel production from acid industrial by-products, Journal of Biotechnology, Volume 164, Issue 3, 10 April 2013, Pages 433-440, ISSN 0168-1656 0168-1656, http://dx.doi.org/10.1016/j.jbiotec.2012.07.009.
Ana Paula Soares Dias, Jaime Puna, Maria Joana Neiva Correia, Isabel Nogueira, João Gomes, João Bordado, Effect of the oil acidity on the methanolysis performances of lime catalyst biodiesel from waste frying oils (WFO), Fuel Processing Technology, Volume 116, December 2013, Pages 94-100, ISSN 0378-3820, http://dx.doi.org/10.1016/j.fuproc.2013.05.002.
Do you think that "70:1 methanol to oil molar ratio, 65 ˚C reaction temperature, 10 wt% catalyst, and 14 h reaction time" is industrially relevant? Our Co-Sol technology does this with less than 1% catalyst, less than 6:1 molar ratio and in less than 3 hours, in truly continuous process for stubborn waste of 16% FFA (for comparison a waste cooking oil has not more than 3-5%). In addition to this any 1st gen. plant can (I am sorry could have been) be easily converted to it.
https://www.researchgate.net/post/Is_it_possible_to_use_a_base_catalyst_for_waste_cooking_oil_for_biodiesel_protection
Article Microwave radiation improved biodiesel yields from waste coo...
Article Fatty acid methyl ester production from acid oil using silic...
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.866.7569&rep=rep1&type=pdf
