Mineral oil recovery from cork granules by a mechanical compression method: Compression cycles analysis

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Paulo S. S. Porto (Author) Other; Renata S. Souza (Author) Other; Joana F. J. R. Pesqueira (Author) Other; Rui A. R. Boaventura (Author) Other; Vítor J. P. Vilar (Author) FEUP

Journal

Title: Journal of Cleaner Production

Vol. 147

Pages: 442-450

ISSN: 0959-6526

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 1 Citation

ISI Web of Science

Scopus - 2 Citations

INSPEC

Scientific classification

CORDIS: Technological sciences > Technology > Environmental technology

FOS: Engineering and technology > Environmental engineering

Associated Projects

LSRE-LCM - Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais

HIDROCORK - Utilização de resíduos ou subprodutos da cortiça para a eliminação de óleos e gorduras de águas

Other information

Authenticus ID: P-00M-K0K

DOI: 10.1016/j.jclepro.2017.01.117

Abstract (EN): The aim of this study was to investigate the recovery of mineral oil from oil-loaded regranulated cork (RGC) particles by a mechanical compression method using a pneumatic press, as well as to evaluate their possible reuse in consecutive loading/compression cycles. The oil-impregnated RGC was inserted into a cylindrical compression barrel, and then compressed using a conical piston. The recovered oil percentage (%RO) was evaluated as function of the applied mechanical compression pressure (p = 0.2 -0.7 MPa), compression time (t(C) = 1, 3 and 5 min), waiting time between each compression (t(W) = 1 min or t(W) = t(C)), height of the compression barrel filled with RGC particles (H <= 12.4 cm)/mass of RGC particles saturated with oil (m(SO)) and number of compressions (1 < N-C < 3). Two configurations of the cylindrical barrel were used: a) only perforated at the bottom and b) perforated at the bottom and in the cylindrical surface. A higher oil recovery was achieved using the second configuration since oil flows in the axial and radial directions, decreasing the distance that oil has to travel to come out the barrel. The particles reusability was tested in ten cycles of saturation/compression using the optimized compression variables (p = 0.5 MPa, N-C = 3, t(C) = 3 min, t(W) = 1 min and H similar to 12.4 cm).

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9