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Prickly Pear Seed Oil by Shelf-Grown Cactus Fruits: Waste or Maste?

Available Technologies and Materials for Waste Cooking Oil Recycling

Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
Department of Chemistry and Pharmacy, via Vienna 2, University of Sassari, 07100 Sassari, Italy
International Research Centre in Critical Raw Materials (ICCRAM), University of Burgos, Plaza Misael Bañuelos s/n, 09001 Burgos, Spain
CNR-ICRM Istituto di Chimica del Riconoscimento Molecolare, ‘U.O.S. Milano Politecnico’, 20131 Milano, Italy
Authors to whom correspondence should be addressed.
Processes 2020, 8(3), 366;
Received: 14 February 2020 / Revised: 11 March 2020 / Accepted: 12 March 2020 / Published: 22 March 2020
(This article belongs to the Special Issue Recycling of Waste Oils: Technology and Application)
Recently, the interest in converting waste cooking oils (WCOs) to raw materials has grown exponentially. The driving force of such a trend is mainly represented by the increasing number of WCO applications, combined with the definition, in many countries, of new regulations on waste management. From an industrial perspective, the simple chemical composition of WCOs make them suitable as valuable chemical building blocks, in fuel, materials, and lubricant productions. The sustainability of such applications is sprightly related to proper recycling procedures. In this context, the development of new recycling processes, as well as the optimization of the existing ones, represents a priority for applied chemistry, chemical engineering, and material science. With the aim of providing useful updates to the scientific community involved in vegetable oil processing, the current available technologies for WCO recycling are herein reported, described, and discussed. In detail, two main types of WCO treatments will be considered: chemical transformations, to exploit the chemical functional groups present in the waste for the synthesis of added value products, and physical treatments as extraction, filtration, and distillation procedures. The first part, regarding chemical synthesis, will be connected mostly to the production of fuels. The second part, concerning physical treatments, will focus on bio-lubricant production. Moreover, during the description of filtering procedures, a special focus will be given to the development and applicability of new materials and technologies for WCO treatments. View Full-Text
Keywords: waste cooking oil; biolubricant; biodiesel; recycling; vegetable oil filtration; vegetable oil degumming waste cooking oil; biolubricant; biodiesel; recycling; vegetable oil filtration; vegetable oil degumming
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MDPI and ACS Style

Mannu, A.; Garroni, S.; Ibanez Porras, J.; Mele, A. Available Technologies and Materials for Waste Cooking Oil Recycling. Processes 2020, 8, 366.

AMA Style

Mannu A, Garroni S, Ibanez Porras J, Mele A. Available Technologies and Materials for Waste Cooking Oil Recycling. Processes. 2020; 8(3):366.

Chicago/Turabian Style

Mannu, Alberto; Garroni, Sebastiano; Ibanez Porras, Jesus; Mele, Andrea. 2020. "Available Technologies and Materials for Waste Cooking Oil Recycling" Processes 8, no. 3: 366.

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