Biofuels TRIZ Cases

Talaromyces-derived trehalase resists heat and protease degradation, sustaining enzyme activity during ethanol fermentation.

This case combines 5–50 vol-% renewable middle distillate with petroleum jet fuel to meet low-temperature viscosity limits for aviation operability.

Glycine and alcoholic substrates pass through aldehyde and β-hydroxy-α-amino acid intermediates to produce multiple keto acids with low cost and pollution.

Stoichiometric turbine exhaust heats biomass pyrolysis, producing nitrogen-rich biochar and syngas while capturing NOX emissions.

Controlled calcium ions and a non-calcium base help engineered microorganisms produce malonate at high yield while limiting ethanol and glycerol by-products.

Molten salt transfers heat through biomass in an anaerobic supertorrefaction process, reducing greenhouse gas emissions and producing biocarbon.

Controlled organosolv extraction and filtration keep lignin in ethanol while removing ash-forming minerals and limiting energy use.

Localized sequence changes reverse enantioselectivity and improve ketoreductase activity for converting substituted acetophenones into (S)-alcohols.

Modified yeast expressing β-glucosidase converts cellobiose to glucose for fermentation, increasing ethanol production while reducing acetate.

Residual sugars can limit ethanol yield, so engineered yeast expresses heterologous trehalase and alpha-amylase to support fuller substrate conversion.

Phospholipase C hydrolyzes phospholipids during fermentation processing, releasing more recoverable oil from thin stillage and syrup.

Mixing terrestrial and marine biomass for low-oxygen heating at 300–350°C produces biochar with stable pH while reducing energy input.

Slow fermentation and residual glucose limit starch-based ethanol production; protease pretreatment and staged enzymatic processing increase rate and yield.

Separate pyrolysis and blending address inefficient biocarbon production by tuning fixed carbon, moisture, ash, and energy content.

Mixing terrestrial and marine biomass creates a homogeneous feed that maintains pH during ethanol fermentation without pretreatment adjustment.

Vacuum processing and reinjected cooled gases address energy use and temperature uniformity in continuous charcoal production.

This case blends syngas-based renewable fuel with petroleum fuel to improve greenhouse gas content, cetane, lubricity, and stability.

A furnace-heated horizontal reactor separates pyrolysis heat from syngas production, supporting diverse biomass feedstocks.

This case uses phospholipase-expressing yeast to improve ethanol yield while reducing foam and nitrogen supplementation.

This case uses warming gas during pressure let-down to prevent phase changes and preserve biogas composition.

Engineered yeast and bacteria support stable ethanol fermentation without antibiotics.

Controlled pyrolysis standardizes biochar before seed coating, addressing variable properties while supporting water retention and microbes.

A rotating pressure vessel slowly cooks biomass and releases steam in a controlled way, reducing explosion hazards and water use.

This case addresses NADPH limits with NADH-preferred alcohol dehydrogenase mutants for more efficient isopropanol production.

Alternating acidic and basic pretreatment detaches fouling residues while combined pulps preserve enzymatic hydrolysis yield.

Site-directed xylanase variants improve hemicellulose deconstruction and support ethanol fermentation.