Environmental Focus
Professor Pohlman seeks to find efficiency in operation as a means of conserving energy. His research is to understand the fundamental principles of granular transfers (i.e. agriculture corn, coal, stone, biomass, etc) which will then help improve the efficiency in transportation and utilization.
Current Research
Laboratory-Scale biomass containers to achieve transportation density and lignin pre-treatment processes.
Technology Summary
Biomass is a widely available but severely under-utilized natural resource that could offer sustainable economic opportunities for rural Illinois. Two elements are preventing market viability from a commercial standpoint:
- Transportation efficiency of low-density materials
- Passive chemical conversion processes can serve as pre-treatments to create new markets for biofuels and specialty chemicals.
The objectives of this research are to confirm that packing densities of feedstocks can be sufficiently efficient to warrant longer transport distances and determine if pre-treatment processes in solid-state fermentation vessels (SSFV) have uniformity of performance within a limited oxygen environment. Conveniently, the experimental activity will bridge the gap between benchtop proof-of-concept bioconversion and full-scale demonstration of the effectiveness of standard 20-foot intermodal shipping containers by exploring ¼-scale versions of SSFV.
Technology Impact
The expected advantages of the ISC storage system include higher density, more efficient handling of ISC, flexibility to be stored outdoors, better stability of feedstock over a wide range of moisture contents due to low rates of oxygen transport, improvement in the biological stability and improved susceptibility of the chemically treated feedstock to future conversion processes.
This research project aims to develop science-based strategies to reduce the cost, improve the quality, and increase the quantity of feedstocks for conversion to biofuels and bioproducts.
Current Student Research Opportunities
Students may be able to explore the heat transfer capabilities of biomass or work with pneumatic conveyance systems to explore reasons for particle drop-out. The heat transfer rates and design of a cook stove using ceramic parts is being conducted. Need student willing to work with art department to find the right material mixtures that can withstand the high heat. Once fabricated, tests of heat transfer and biochar production will take place.