Patrick Biller
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View article: Continuous wet oxidation of hydrothermal liquefaction aqueous phase: oxidant supply and integration potential
Continuous wet oxidation of hydrothermal liquefaction aqueous phase: oxidant supply and integration potential Open
Hydrothermal Liquefaction (HTL) is a promising technology for biomass valorization, but effective treatment of the aqueous byproduct presents an unresolved challenge. Wet oxidation (WO) offers a potential solution to provide heat for a fut…
View article: Chemical recycling of post-consumer textile waste via continuous hydrothermal liquefaction and hydrotreatment for simultaneous monomer and hydrocarbons production
Chemical recycling of post-consumer textile waste via continuous hydrothermal liquefaction and hydrotreatment for simultaneous monomer and hydrocarbons production Open
Textile waste streams pose a significant sustainability challenge for industry, particularly due to their complex, mixed composition and the presence of various chemical additives, such as colorants, dyes and other finishing chemical addit…
View article: Evaluating hydrothermal liquefaction hydrochar from sewage sludge as a phosphorus resource through struvite production
Evaluating hydrothermal liquefaction hydrochar from sewage sludge as a phosphorus resource through struvite production Open
Hydrothermal liquefaction (HTL) has attracted considerable attention for valorizing sewage sludge to biofuels while the solid residue, hydrochar, has received little attention for its final application. In the current work hydrochar recove…
View article: Hydrothermal carbonization and pyrolysis in wetland engineering: Carbon sequestration, phosphorus recovery, and structural characterization of willow-based chars with X-ray μ-computed tomography
Hydrothermal carbonization and pyrolysis in wetland engineering: Carbon sequestration, phosphorus recovery, and structural characterization of willow-based chars with X-ray μ-computed tomography Open
Willows from engineered wetland systems (EWS) offer a sustainable approach to wastewater treatment and biomass production. Our study assesses their potential for nutrient recovery and carbon sequestration using slow pyrolysis (600 °C) and …
View article: Continuous wet air oxidation of aqueous phase from hydrothermal liquefaction of sewage sludge
Continuous wet air oxidation of aqueous phase from hydrothermal liquefaction of sewage sludge Open
The conversion of organic waste into advanced fuels through hydrothermal liquefaction (HTL) is a promising route. However, for the commercialisation of HTL technology, treatment and valorisation of the generated aqueous by-product are requ…
View article: Anaerobic digestion of wastewater from hydrothermal liquefaction of sewage sludge and combined wheat straw-manure
Anaerobic digestion of wastewater from hydrothermal liquefaction of sewage sludge and combined wheat straw-manure Open
Hydrothermal liquefaction (HTL) shows promise for converting wet biomass waste into biofuel, but the resulting high-strength process water (PW) requires treatment. This study explored enhancing energy recovery by anaerobic digestion using …
View article: Optimizing resource efficiency through hydrothermal carbonization and engineered wetland systems: A study on carbon sequestration and phosphorus recovery potential
Optimizing resource efficiency through hydrothermal carbonization and engineered wetland systems: A study on carbon sequestration and phosphorus recovery potential Open
Engineered wetland systems (EWS) are globally recognized as efficient wastewater treatment solutions with the potential for sustainable biomass production. The need arises to understand hydrothermal carbonization's (HTC) potential in nutri…
View article: A kinetic process model for sewage sludge hydrothermal liquefaction in Aspen Plus: Model validation with pilot-plant data and scale up
A kinetic process model for sewage sludge hydrothermal liquefaction in Aspen Plus: Model validation with pilot-plant data and scale up Open
This study aims to develop a rigorous process simulation model for the hydrothermal liquefaction (HTL) of sewage sludge, allowing for more accurate predictions of product streams’ yields, elemental recoveries, energy requirements and equip…
View article: Hydrothermal liquefaction potential of wastewater treatment sludges: Effect of wastewater treatment plant and sludge nature on products distribution
Hydrothermal liquefaction potential of wastewater treatment sludges: Effect of wastewater treatment plant and sludge nature on products distribution Open
The rapid growth of urban populations necessitates the development of more efficient and environmentally sustainable methods for waste treatment and resource recovery. Hydrothermal liquefaction (HTL) has emerged as a promising technology f…
View article: Influence of processing conditions and biochemical composition on the hydrothermal liquefaction of digested urban and agricultural wastes
Influence of processing conditions and biochemical composition on the hydrothermal liquefaction of digested urban and agricultural wastes Open
Hydrothermal liquefaction (HTL) of waste biomass is a promising technology to yield an energy dense biocrude oil and a nutrient rich solid phase. An abundant and problematic biomass waste stream potentially suited for HTL is digestate, the…
View article: Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste
Evaluation of different fiber impurities on hydrothermal liquefaction of mixed textile waste Open
There is a need for more sustainable recycling technologies for mixed textile waste, including the two main fibers poly(ethylene terephthalate) (PET) and cotton but also containing other fiber types. Hydrothermal liquefaction has been show…
View article: Upgrading of hydrothermal liquefaction biocrudes from mono- and co-liquefaction of cow manure and wheat straw through hydrotreating and distillation
Upgrading of hydrothermal liquefaction biocrudes from mono- and co-liquefaction of cow manure and wheat straw through hydrotreating and distillation Open
Liquid hydrocarbons from agricultural wet wastes can serve as a strategy to greatly reduce CO 2 emissions. This study presents the upgrading via catalytic hydrotreatment of hydrothermal liquefaction (HTL) biocrudes derived from cow manure,…
View article: Hydrothermal liquefaction of post-consumer mixed textile waste for recovery of bio-oil and terephthalic acid
Hydrothermal liquefaction of post-consumer mixed textile waste for recovery of bio-oil and terephthalic acid Open
Fast fashion trends lead to significant quantities of textiles produced and discarded, its waste is incinerated or landfilled due to a lack of recycling technologies for mixed textiles. Recycling of mixed textiles by hydrothermal liquefact…