MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202611106808 A) filed by Panipat Institute Of Engineering And Technology Piet on September 04, 2026, for A Multi-Stage Passive Fuel Purification Apparatus For Sequential Removal Of Water From Ethanol- Blended Fuel.
Inventors include Dr. Sunil Dhull; Dr. Anju Gandhi; Dr. Stuti Mehla; Mr. Saksham Kumar; Mr. Dhruv Gandhi; Mr. Utkarsh Kapoor; Ms. Avni Sharma; Ms. Nisha Dhuran; and Mr. Nikhil Singh.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: [051] A passive multi-stage fuel purification apparatus (100) is disclosed for sequential removal of water contamination from ethanol-blended fuel. The apparatus comprises an inlet chamber (200), a hydrodynamic separation chamber (300) having a tangential fuel inlet (302) for inducing rotational flow (306) to separate denser free water and larger contaminants, a hydrophobic membrane chamber (400) containing a hydrophobic membrane element (402) for reducing residual free and emulsified water, a selective adsorption chamber (500) containing a packed bed (502) of molecular sieve material for selectively adsorbing dissolved water while substantially excluding ethanol, and an outlet chamber (600). The stages are arranged so that each upstream stage reduces contaminant loading on a downstream stage, thereby reducing membrane fouling and delaying adsorbent saturation. The apparatus operates passively using available fuel-system pressure without external electrical power or moving purification components and is suitable for in-line use in vehicles, generators, agricultural equipment, and comparable fuel-consuming systems. Accompanied Drawing [FIGS. 1-2]
Disclaimer: Curated by HT Syndication.
