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US 11,896,950 B1Granted
Activated carbon composite flakes using olive stone-polyethylene waste
AssigneeKing Faisal University
InventorsJunaid Saleem, Sk Safdar Hossain, Zubair Khalid Baig Moghal, Gordon McKay
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Abstract
A method of preparing an adsorbent can include pyrolyzing olive stone to provide an olive stone char, activating the olive stone char, dissolving a polymer in an organic solvent to obtain a solution, dispersing the activated olive stone char in the solution to provide a mixture, extracting the solvent from the mixture to provide a composite, and annealing the composite to provide the adsorbent. The adsorbent can be porous.
Claims17
A method for preparing an adsorbent from olive stone and a polymer, comprising:
- obtaining olive stones;
- cutting and drying the olive stones to obtain dried olive stone pieces;
- alkali-activating the dried olive stone pieces to obtain alkali-activated olive stone pieces;
- pyrolyzing the alkali-activated olive stone pieces to obtain alkali-activated olive stone char;
- acid-activating the alkali-activated olive stone char to obtain acid-activated olive stone char;
- dissolving at least one polymer in an organic solvent to obtain a polymer solution;
- dispersing the acid-activated olive stone char in the polymer solution to obtain a mixture;
- extracting the organic solvent from the mixture to obtain a composite;
- and
- annealing the composite to provide the adsorbent.
7 more elements
Dependencies are inferred from the claim text.