Natural gas storage in microporous carbon obtained from waste of the olive oil production

Abstract

A series of activated carbons (AC) were prepared from waste of the olive oil production in the Cuyo Region, Argentine by two standard methods: a) physical activation by steam and b) chemical activation with ZnCl 2 . The AC samples were characterized by nitrogen adsorption at 77 K and evaluated for natural gas storage purposes through the adsorption of methane at high pressures. The activated carbons showed micropore volumes up to 0.50 cm 3 .g -1 and total pore volumes as high as 0.9 cm 3 .g -1 . The BET surface areas reached, in some cases, more than 1000 m 2 .g -1.The methane adsorption -measured in the range of 1-35 bar-attained values up to 59 V CH4 /V AC and total uptakes of more than 120 cm 3 .g -1 (STP). These preliminary results suggest that Cuyo's olive oil waste is appropriate for obtaining activated carbons for the storage of natural gas.

Agricultural bio-waste materials as potential sustainable precursors used for activated carbon production: A review

“…It means that this physical activation involves two steps; carbonization step and activation step. On the other hand, in chemical treatment, precursors are impregnated by an activating reagent and followed by heating process under an inert atmosphere [58,[116][117][118][119][120][121][122].…”

Adsorption of Methane in Porous Materials as the Basis for the Storage of Natural Gas

“…The other precursor employed was the remains of olive wood resulting from the trees prune. The synthesis of the chemically activated carbons was carried out as described by Solar et al, 2008following Tsai et al, 1998. The samples were named by taking into account the parameters of synthesis XZnY, where X is the selected raw material; Zn is the activating agent (ZnCl 2 ) and Y, the impregnation relation.…”

“…For the samples nomenclature, the raw material was also considered, for example the carbonized olive lex was named LAC and the carbonized olive wood, MOC. The work conditions were described by Solar et al, 2008. For the textural analysis of the samples, nitrogen adsorption-desorption isotherms were conducted using an AUTOSORB-1MP (Quantachrome Instruments) and an ASAP 2000 (Micromeritics Instruments Corp). Samples were previously degassed at 250C and the study was carried out at liquid nitrogen temperature, 77K (-196C).…”

Simple Method to Produce Nanoporous Carbon for Various Applications by Pyrolysis of Specially Synthesized Phenolic Resin

“…It has been generally known that the pore structure of the porous carbon is affected by the nature of the precursor, pyrolysis method, and post-treatment conditions (activation processes) [14][15][16]. Phenolic formaldehyde polymers have been increasingly used as precursor for porous carbon preparation due to its specific three dimensional structures of the polymer framework and thermosetting properties [17], however there has not been a systematic effort to relate the structural properties and the morphologies of the carbonized polymers to the type and the composition of the reactant used in the polymerization processes.…”