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US 2022/0089959 A1Published application
Process For Molecular Separation Of Hydrocarbons Using Nanopore Membranes
AssigneeIndian Oil Corporation Limited
InventorsPrakash Bhagwant BHALAVI, Devotta IRUDAYARAJ, Naduhatty Selai RAMAN, Alok SHARMA, Gurpreet Singh KAPUR, Sankara Sri Venkata RAMAKUMAR
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Abstract
The present invention relates to the process for molecular separation of hydrocarbons using nanopore membrane comprising passing the hydrocarbon feedstock with or without separation enhancing additive/additives to produce permeate streams having different refractive indices which resonate with that of naphtha, kerosene and heavier molecules.
Claims11
A process for molecular separation of hydrocarbon, wherein said process comprises the steps of:
- passing a hydrocarbon feedstock with/without a separation enhancing additive(s) through nanopore membranes to produce a permeate stream of lighter molecular hydrocarbon having boiling point below 330° C. and a retentate stream of heavier molecular hydrocarbon having boiling point above 550° C.;
- measuring the refractive indices of the streams and accordingly differentiating said permeate stream and the retentate stream with respect to their respective refractive indices;
- recovering a permeate stream that has 70-90% reduced asphaltenes, metals, sulfur and CCR compared to feed stream;
- and recycling the retentate stream having enriched impurities back for further purification until the recovery reaches to maximum;
- wherein said permeate stream has lesser metals, sulfur and Conradson Carbon Residue while said retentate stream has higher metals, sulfur and Conradson Carbon Residue as compared to the feedstock and said process enables removal of inorganic and organic contaminants from the hydrocarbon feedstock in an energy-efficient and eco-friendly process.
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Dependencies are inferred from the claim text.