Carbon-Mineral Adsorbent from Petroleum Pitch and Precipitated Colloidal Silica
Kugatov P.V.1, Nigmatullin V.F.2, Zhirnov B.S.3
1Kugatov P.V, Ufa State Petroleum Technological University, Branch in the Salavat, Gubkin Str., 22b, Salavat, Republic of Bashkortostan, Russia.
2Nigmatullin V.F, Ufa State Petroleum Technological University, Branch in the Salavat, Gubkin Str., 22b, Salavat, Republic of Bashkortostan, Russia.
3Zhirnov B.S, Ufa State Petroleum Technological University, Branch in the Salavat, Gubkin Str., 22b, Salavat, Republic of Bashkortostan, Russia.
Manuscript received on November 12, 2019. | Revised Manuscript received on November 23, 2019. | Manuscript published on 30 November, 2019. | PP: 8167-8172 | Volume-8 Issue-4, November 2019. | Retrieval Number: D8762118419/2019©BEIESP | DOI: 10.35940/ijrte.D8762.118419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The carbon-mineral adsorbent was prepared according to a two-stage scheme, which, despite the hydrophilic nature of the surface of colloidal silica, made it possible to prepare pellets with a high specific surface area and compressive strength of up to 70 m2/g and 8 MPa, respectively. The proposed method consists in mixing petroleum pitch and colloidal silica in the first stage, followed by granulation and carbonization (at 1000 °C); the resulting carbon-mineral material is crushed and mixed with petroleum pitch in the second stage, after which it is also granulated and carbonized (at 700 °C). Based on the obtained carbon-mineral sorbent, a highly porous carbon adsorbent is produced by etching the silicate base in a concentrated solution of sodium hydroxide during boiling. The total pore volume of the obtained samples reached 3.5 cm3/g.
Keywords: Carbon-Mineral Adsorbent, Petroleum Pitch, Colloidal Silica, Carbonization, Etching.
Scope of the Article: Predictive Analysis.