Hybrid Asphalt Materials from Renewable HOSO and Coal
AsphaltHigh oleicIndustrial UsesOilProcessing aid
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Jeramie J., Western Research Institute
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:
An asphalt replacement is the ultimate goal for this project, however due to the price of soybean oil compared to asphalt, other asphalts products are initially targeted because they are sold at 3-5 times the price of asphalt. One such asphalt product is rejuvenators. Rejuvenators are a large market and their use is increasing so more aged asphalt form old pavements are recycled in new road construction. Rejuvenators provide an important initial stepping-stone to formulating a future asphalt replacement.
Information And Results
Project Summary

Project Objectives

Project Deliverables

Progress Of Work

Final Project Results

During the first year of USB funding (FY 2022), asphalt rejuvenators (used for recycling asphalt) were prepared from tetralin coal derived molecules (CDM) and high oleic soybean oil (HOSO) fatty acids. At the end of the first year funding, it was determined the preparation of CDM with tetralin was not economical for scale up. New routes were explored, with the University of Wyoming School of Energy Resources, to produce an economic alternative for CDM. A method to produce fatty alcohol CDM was developed and shown to be economical. During the second year (FY 2023) of USB funding, the fatty alcohol CDM was reacted with oleic acid in an attempt to make new rejuvenators. These new CDM had less reactive sites to bond with oleic acid than the old CDM. As a result, these did not make suitable rejuvenators without adding additional oil or fatty acid components. More importantly, it was shown that the CDM oxidized more severely than the base asphalt, although the oxidation behavior was better than a commercial triglyceride rejuvenator. Both factors forced a shift in direction for the project towards developing new chemical methods to improve the oxidation performance of CDM. The most promising development was using fatty aldehydes to produce CDM. These new CDM had a much lower oxidation severity, which was similar to standard paving grade asphalt. Fatty aldehydes are produced from the dehydrogenation of fatty alcohols, which in turn are derived from vegetable oils. These aldehydes can be derived from soybean oils.

Benefit To Soybean Farmers

New chemistries and strategies were developed to create products for the asphalt paving industry from coal, and other oxygen containing feedstocks, with high oleic acid soybean oil fatty acids (oleic acid) and oleyl amine.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.