METHOD OF ZEOLITE SYNTHESIS INCLUDING pH-MODIFIED WATER-SOLUBLE OXIDIZED DISULFIDE OIL COMPOSITION
AssigneeSaudi Arabian Oil Company
InventorsRobert P. HODGKINS, Omer Refa KOSEOGLU
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Abstract
Methods for synthesizing zeolites in the presence of a pH-modified WS-ODSO composition are provided. A pH-modified WS-ODSO composition is used as a component in zeolite synthesis along with precursors and reagents for synthesizing zeolites. The methods advantageously reduce the amount of utility water required for synthesizing zeolites. In certain embodiments the methods reduce the amounts of added mineralizer reagent typically required for synthesizing zeolites. The methods advantageously reduce the amount of utility water required for synthesizing a material and reduce the DSO waste from a refinery and discharge into the environment.
Claims17
A method for synthesis of zeolite comprising:
- providing a composition of an acidic water-soluble oxidized disulfide oil, WS-ODSO, composition and an alkaline agent as a pH-modified WS-ODSO composition that is a neutralized WS-ODSO composition having a pH in the range of about 6-8, or that is a basified WS-ODSO composition having a pH greater than 7;
- forming a homogeneous aqueous mixture of the pH-modified WS-ODSO composition, a silica source, an optional aluminum source, and optionally one or both of a structure directing agent and/or a seed material;
- and
- heating the homogeneous aqueous mixture under conditions and for a time effective to form a precipitate suspended in a supernatant as an intermediate suspension, wherein the precipitate comprises zeolite.
Dependencies are inferred from the claim text.