Xiaowen Chen

ORCID: 0000-0001-8041-5852
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About
Contact & Profiles
Research Areas
  • Biofuel production and bioconversion
  • Microbial Metabolic Engineering and Bioproduction
  • Catalysis for Biomass Conversion
  • Lignin and Wood Chemistry
  • Fermentation and Sensory Analysis
  • Enzyme Catalysis and Immobilization
  • Water Treatment and Disinfection
  • Enzyme Production and Characterization
  • Electrohydrodynamics and Fluid Dynamics
  • Combustion and flame dynamics
  • Welding Techniques and Residual Stresses
  • Advanced Cellulose Research Studies
  • Asphalt Pavement Performance Evaluation
  • Biochemical and biochemical processes
  • Thermochemical Biomass Conversion Processes
  • Supercapacitor Materials and Fabrication
  • Advanced battery technologies research
  • Horticultural and Viticultural Research
  • Catalysis and Hydrodesulfurization Studies
  • Advanced Algorithms and Applications
  • Advanced Sensor and Control Systems
  • Concrete and Cement Materials Research
  • Advancements in Battery Materials
  • Phytochemicals and Antioxidant Activities
  • Biodiesel Production and Applications

National Renewable Energy Laboratory
2016-2025

Shenzhen Institute of Information Technology
2024-2025

Harbin Institute of Technology
2023-2025

China University of Mining and Technology
2023-2025

China Southern Power Grid (China)
2024

Southwest Petroleum University
2018-2024

Oriental Yuhong (China)
2022-2024

Ministry of Ecology and Environment
2024

Northwest A&F University
2021-2024

State Key Joint Laboratory of Environment Simulation and Pollution Control
2021-2024

The deconstruction of renewable biomass feedstocks into soluble sugars at low cost is a critical component the biochemical conversion to fuels and chemicals. Providing high concentration sugar syrups with levels chemicals toxic inhibitors, process yields essential for platform processes using pretreatment enzymatic hydrolysis. In this work, we utilize consisting deacetylation, followed by mechanical refining in disc refiner (DDR) concentrations without conventional chemical step. new...

10.1186/1754-6834-7-98 article EN cc-by Biotechnology for Biofuels 2014-01-01

Lignocellulosic biorefineries will produce a substantial pool of lignin-enriched residues, which are currently slated to be burned for heat and power. Going forward, however, valorization strategies residual solid lignin essential the economic viability modern biorefineries. To achieve these strategies, effective depolymerization processes required that can convert specific biorefinery substrates into products sufficient value market size. Base-catalyzed (BCD) using sodium hydroxide other...

10.1021/acssuschemeng.5b01451 article EN publisher-specific-oa ACS Sustainable Chemistry & Engineering 2016-01-13

A New Lignin BioJet: Jet fuel-range hydrocarbons (C<sub>7</sub>–C<sub>18</sub>) can be produced directly from biomass-derived lignin by selective C–O–C bond cleavage and simultaneous hydrodeoxygenation using combinations of noble metal catalysts (Ru/Al<sub>2</sub>O<sub>3</sub>) acidic zeolites (H<sup>+</sup>-Y) in the aqueous phase.

10.1039/c5gc01534k article EN Green Chemistry 2015-01-01

Dilute acid pretreatment is a promising technology for the biochemical production of ethanol from lignocellulosic biomass. During dilute pretreatment, xylan depolymerizes to form soluble xylose monomers and oligomers. Because found in nature highly acetylated, formation requires two steps: 1) cleavage xylosidic bonds, 2) covalently bonded acetyl ester groups.In this study, we show that latter may be rate limiting step monomer formation. Furthermore, groups are also cause biomass...

10.1186/1754-6834-5-8 article EN cc-by Biotechnology for Biofuels 2012-01-01

Conversion of biomass derived lignin to liquid fuels has the promising potential significantly improve carbon utilization and economic competitiveness refineries. In this study, an aqueous phase catalytic process was developed selectively depolymerize polymeric framework remove oxygen via hydrodeoxygenation (HDO) reactions. Efficient methods (ethanol dilute alkali extraction) for producing reactive oligomers with high yields from corn stover were established. Characteristic structural...

10.1039/c3gc42041h article EN Green Chemistry 2013-12-10

Abstract The synthesis of high‐efficiency and low‐cost catalysts for hydrodeoxygenation (HDO) waste lignin to advanced biofuels is crucial enhancing current biorefinery processes. Inexpensive transition metals, including Fe, Ni, Cu, Zn, were severally co‐loaded with Ru on HY zeolite form bimetallic bifunctional catalysts. These subsequently tested HDO conversion softwood several model compounds. Results indicated that the inexpensive earth‐abundant metals could modulate hydrogenolysis...

10.1002/cssc.201700160 article EN ChemSusChem 2017-02-22

Industrial biotechnology that is able to provide environmentally friendly bio-based products has attracted more attention in replacing petroleum-based industries. Currently, most of the carbon sources used for fermentation-based bioprocesses are obtained from agricultural commodities as foodstuff human beings. Lignocellulose-derived sugars non-food, green, and sustainable alternative have great potential avoid this dilemma producing renewable, hydrocarbon fuel precursors, such microbial...

10.1186/s13068-016-0542-x article EN cc-by Biotechnology for Biofuels 2016-06-23

To develop pathways for advanced biofuel production, and to understand the impact of host metabolism environmental conditions on heterologous pathway engineering economic biofuels production from biomass, we seek redirect carbon flow model ethanologen Zymomonas mobilis produce desirable hydrocarbon intermediate 2,3-butanediol (2,3-BDO). 2,3-BDO is a bulk chemical building block, can be upgraded in high yields gasoline, diesel, jet fuel.2,3-BDO biosynthesis various bacterial species were...

10.1186/s13068-016-0606-y article EN cc-by Biotechnology for Biofuels 2016-09-02

With the expansion of semiconductor industry, determining huge associated water and energy consumption accomplishing sustainable development can be key issues for this industry. This study surveyed sustainability reports 28 corporations summarized their environmental stewardship information. Overall, total withdrawal in 2021 was 7.89 × 108 m3, 1.49 1011 kWh, greenhouse gas (GHG) emissions 7.15 107 tons CO2 equivalent. The Scope 1 2 GHG were 2.74 4.41 t equivalent, respectively. Surface...

10.1016/j.watcyc.2023.01.004 article EN cc-by-nc-nd Water Cycle 2023-01-01

Many real-world scenarios involve interfaces, particularly liquid–liquid that can fundamentally alter the dynamics of colloids. This is poorly understood for chemically active colloids release chemicals into their environment. We report here surprising discovery chemical micromotors─colloids convert fuels self-propulsion─move significantly faster at an oil–water interface than on a glass substrate. Typical speed increases ranged from 3 to 6 times up order magnitude and were observed...

10.1021/jacs.3c13743 article EN Journal of the American Chemical Society 2024-02-02

The effect of mechanical refining on the enzymatic digestibility pretreated corn stover (PCS) was investigated. Low severity, dilute sulfuric acid PCS subjected to using a bench-scale food processor blender, PFI mill, 12-inch laboratory disk refiner, and 25 mm co-rotating twin-screw extruder. Glucose yields from hydrolysis were improved by 10-15% after blending refining, while extrusion showed glucose yield improvement 16-20%. A pilot scale test Szego mill performed approximately 10%...

10.1016/j.biortech.2013.07.109 article EN cc-by-nc-nd Bioresource Technology 2013-07-29

Lignocellulosic biomass is a renewable, naturally mass-produced form of stored solar energy. Thermochemical pretreatment processes have been developed to address the challenge recalcitrance, however optimization, cost reduction, and scalability these remain as obstacles adoption biofuel production at industrial scale. In this study, we demonstrate that type reactor in which carried out can profoundly alter micro- nanostructure pretreated materials dramatically affect subsequent efficiency,...

10.1186/1754-6834-7-47 article EN cc-by Biotechnology for Biofuels 2014-04-01

Historically, acid pretreatment technology for the production of bio-ethanol from corn stover has required severe conditions to overcome biomass recalcitrance. However, high usage and steam at hinders economic feasibility ethanol biomass. In addition, amount acetate furfural produced during harsh is in range that strongly inhibits cell growth impedes fermentation. The current work addresses these issues through with lower concentrations temperatures incorporated deacetylation mechanical...

10.1186/1754-6834-5-60 article EN cc-by Biotechnology for Biofuels 2012-01-01

Abstract A lactic acid/chlorine chloride‐based deep eutectic solvent (DES) was used for the extraction of high‐purity lignin (up to 94.7 %) in high yield 75 from hydrolysis/fermentation residue corn stover hydrolysate (CSH), which generated a pilot‐plant‐scale biorefinery. range conditions were investigated, involved varying reaction temperature, time, and DES composition. The relationship between yield, purity, structural characteristics with treatment determined. residues presents...

10.1002/cssc.202001243 article EN ChemSusChem 2020-07-16
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