Increasing the revenue from lignocellulosic biomass: Maximizing feedstock utilization
David Martin Alonso1,2, Sikander H Hakim2, Shengfei Zhou3,4
1Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
Science Advances
|June 1, 2017
Summary
This study presents a biomass conversion strategy that efficiently transforms lignocellulosic biomass into valuable products like dissolving pulp, furfural, and carbon materials. This approach aims for economic viability in renewable chemical and biofuel production.
Area of Science:
- Biomass Conversion and Valorization
- Renewable Chemicals and Biofuels
- Lignocellulosic Biomass Processing
Background:
- Renewable chemicals and biofuels require cost and performance parity with petroleum-based alternatives for market acceptance.
- Lignocellulosic biomass is an abundant, underutilized resource for sustainable chemical production.
Purpose of the Study:
- To develop an economically viable biomass conversion strategy.
- To maximize the conversion of lignocellulosic biomass into high-value, commercializable products.
- To enable the cost-effective production of renewable chemicals and biofuels.
Main Methods:
- A novel biomass fractionation method that processes cellulose, hemicellulose, and lignin.
- Conversion of cellulose into dissolving pulp for fibers and chemicals.
- Conversion of hemicellulose into furfural (a key building block chemical).
- Valorization of lignin into carbon products (e.g., carbon foam, fibers, battery anodes).
Main Results:
- Achieved up to 80% conversion of lignocellulosic biomass into useful products.
- Generated significant revenue potential exceeding $500 per dry metric ton of biomass.
- Preserved the value of all three primary biomass components (cellulose, hemicellulose, lignin).
Conclusions:
- The proposed biomass conversion strategy offers a pathway to economically viable production of renewable chemicals and biofuels.
- This technology successfully transforms lignocellulosic biomass into multiple high-value products.
- The de-risked technology has potential for expansion into producing a wider range of renewable chemicals and biofuels.
Related Concept Videos
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...


