Esther Torrens

ORCID: 0000-0002-6817-4897
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About
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Research Areas
  • Biofuel production and bioconversion
  • Advanced Cellulose Research Studies
  • Catalysis for Biomass Conversion
  • Coal Combustion and Slurry Processing
  • Thermochemical Biomass Conversion Processes
  • Extraction and Separation Processes
  • Algal biology and biofuel production
  • Proteins in Food Systems
  • Rice Cultivation and Yield Improvement
  • Lignin and Wood Chemistry
  • Catalysis and Hydrodesulfurization Studies
  • biodegradable polymer synthesis and properties
  • Chemical and Physical Properties in Aqueous Solutions
  • Odor and Emission Control Technologies
  • Probiotics and Fermented Foods
  • Enzyme Catalysis and Immobilization
  • Geotechnical Engineering and Soil Mechanics
  • Agriculture, Soil, Plant Science
  • Insect Utilization and Effects
  • Petroleum Processing and Analysis
  • Chemistry and Chemical Engineering
  • Animal and Plant Science Education
  • Mesoporous Materials and Catalysis
  • Enzyme Production and Characterization

Universitat Rovira i Virgili
2019-2024

The study assessed the valorisation of primary sludge through HTL and influence temperature on product distribution. experiments were conducted at different temperatures, 30 min reaction time, 100 rpm stirring rate. maximum yield biocrude produced was 39.47% 270 °C. best oils 23.96% 300 lowest asphaltenes 12.50% 240 HHV for always between 39 41 MJ/kg, close to petroleum. Best energy recovery 82%

10.1016/j.heliyon.2024.e24731 article EN cc-by Heliyon 2024-01-20

The progressive decline of using fossil sources in the industry means that alternative resources must be found to produce chemicals. Waste biomass (sewage sludge) and waste lignocellulosic (food, forestry, or paper industries) are ideal candidates take over from sources. Municipal sewage sludge, especially primary has a significant proportion cellulose its composition. Proper treatment this allows production interesting chemicals like levulinic acid precursors (bio-blocks building blocks)...

10.3390/catal10091004 article EN Catalysts 2020-09-02

Effect of homogeneous and heterogeneous catalysts on hydrothermal liquefaction primary sludge was studied. Biocrude, biochar, aqueous phase biogas were all affected, in terms quantity quality. HTL without any catalyst attained a biocrude yield 37.7 % (w/wVS). The best improvements are observed with CuSO4 (10 %), 42.20 (w/wVS) TiO2 (20 41.90 All experiments produced HHV higher than 30 MJ/kg carbon content 60 %. analysis demonstrated that the major fraction asphaltenes, heavier phase. While,...

10.1016/j.fuel.2024.131715 article EN cc-by-nc-nd Fuel 2024-04-30

Abstract Industrial wastewaters and their treatment are now placed at the heart of environmental concerns that industries face. Some research work has been carried out in order to limit impact these wastes on environment as well costs. In this study, wastewater dehydrated sludge (55% wt. water content) from paper industry was used recover cellulose by using tetrakis(hydroxymethyl)phosphonium chloride, [P(CH2OH)4]Cl, ionic liquid a solvent. The shown remarkable results terms extraction...

10.2166/wst.2019.189 article EN Water Science & Technology 2019-05-15

The study assessed the valorisation of primary sludge through HTL and influence temperature on product distribution. experiments were conducted at different temperatures, 30 min reaction time, 100 rpm stirring rate. maximum yield biocrude produced was 39.47% 270°C. best oils 23.96% 300ºC. lowest asphaltenes 12.50% 240ºC. HHV for always between 39 41 MJ/kg, close to petroleum. Best energy recovery 82% 270ºC.

10.2139/ssrn.4584552 preprint EN 2023-01-01

Three ionic liquids were synthesized using choline esters of C8, C10, and C12 chains, with potassium lactate as the anion. Their purity was confirmed via1H NMR spectroscopy, indicating their suitability for extracting protein from buffalo insect powder. Extraction initially performed through mechanical agitation followed by ultrasound application. The results revealed extraction yields ranging 46.4% to 64.7%, content between 53.3% 63.3%, verified FTIR analysis. Notably, spectra exhibited...

10.2139/ssrn.4813037 preprint EN 2024-01-01

10.48158/mecce-14.dg.09.16 article EN 14th Mediterranean Congress of Chemical Engineering (MeCCE14) Abstracts Publication 2020-02-14
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