Interfacial behaviour of asphaltenes in oil/water systems by Walisson de Jesus S
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Interfacial behaviour of asphaltenes in oil/water systems by Walisson de Jesus S. Author Walisson de Jesus Souza. Adsorption isotherms and Gibbs and Langmuir equations of state were investigated. For systems containing toluene as solvent, the attraction between solvent molecules and asphaltene molecules is strong due to its high solubility, thus reducing the interfacial activity of asphaltene molecules. Interfacial behaviour of asphaltenes in oil/water systems by Walisson de Jesus Souza Estimated delivery 3-12 business days Format Paperback Condition Brand New Description In this work, the hanging drop tensiometry technique was used to better describe the interfacial rheological properties of asphaltenes, extracted from two Brazilian oils, at the toluene/water and heptol (heptane+toluene)/water interfaces, varying the proportions of organic solvents in 1:1 and 1.5:1 and the concentration of asphaltenes. Adsorption isotherms and Gibbs and Langmuir equations of state were investigated. For systems containing toluene as solvent, the attraction between solvent molecules and asphaltene molecules is strong due to its high solubility, thus reducing the interfacial activity of asphaltene molecules. For systems containing heptol as a solvent, the interaction between the asphaltene molecule and the solvent molecules is weak, resulting in an increase in the interfacial activity of the asphaltene molecules. The dilatational rheological interfacial properties of the systems studied (IFT, surface pressure and modulus of elasticity) depend exclusively on the interfacial coverage. These results are useful for understanding how asphaltene adsorption processes occur at fluid/fluid interfaces at the microscopic level. Details ISBN 6207835166 ISBN-13 9786207835164 Title Interfacial behaviour of asphaltenes in oil/water systems Author Walisson de Jesus Souza Format Paperback Year 2025 Pages 72 Publisher Our Knowledge Publishing GEItemID:173931257; About Us Grand Eagle Retail is the ideal place for all your shopping needs! With fast shipping, low prices, friendly service and over 1,000,000 in stock items - you're bound to find what you want, at a price you'll love! Shipping & Delivery Times Shipping is FREE to any address in USA. Please view eBay estimated delivery times at the top of the listing. Deliveries are made by either USPS or Courier. We are unable to deliver faster than stated. International deliveries will take 1-6 weeks. NOTE: We are unable to offer combined shipping for multiple items purchased. This is because our items are shipped from different locations. Returns If you wish to return an item, please consult our Returns Policy as below: Please contact Customer Services and request "Return Authorisation" before you send your item back to us. Unauthorised returns will not be accepted. Returns must be postmarked within 4 business days of authorisation and must be in resellable condition. Returns are shipped at the customer's risk. We cannot take responsibility for items which are lost or damaged in transit. For purchases where a shipping charge was paid, there will be no refund of the original shipping charge. Additional Questions If you have any questions please feel free to Contact Us. Categories Baby Books Electronics Fashion Games Health & Beauty Home, Garden & Pets Movies Music Sports & Outdoors Toys
