Gonzalo Guillén-Gosálbez’s research while affiliated with ETH Zurich and other places

... [16] In recent work, we showed that DFX is inherently biodegradable and scaled up the production of DFX from corn cobs to a multi-kg scale in a sustainable one-pot process. [28] By adapting the same process, in this work we expand the portfolio of xylose-based solvents by introducing various short-chain aliphatic aldehydes into the xylose core. The resulting xylose acetals are interesting candidates for biocatalysis and, specifically, for polyester syn-thesis with Candida antarctica lipase B (CaLB) due to their properties discussed in this work. ...

Reference:

Xylose Acetals ‐ a New Class of Sustainable Solvents and Their Application in Enzymatic Polycondensation

... Substantially increasing CDR employment would correspond to scaling up novel CDR methods, as maintaining or even slightly increasing conventional CDR on land by 2030, as planned by many countries and economic regions like the European Union, is a huge challenge on its own requiring dedicated policies and management (Doelman et al., 2020;Cobo et al., 2023;Gidden et al., 2023;Smith et al., 2023;Ganti et al., 2024;Koponen et al., 2024;Zhao et al., 2024). Further, there are major uncertainties regarding incomplete GHG emission measurements and accounting related to such nature-based climate change mitigation and CDR methods (Buma et al., 2024). ...

Reference:

Carbon Dioxide Removal (CDR) – Environmental Life Cycle Assessment

... Besides climate change impacts, biobased chemicals may lead to burden shifts, particularly in terms of water scarcity and land use-related biodiversity loss. These impacts require careful assessment at the regional level to fully understand and mitigate their consequences (Huo et al., 2024). ...

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Assessing decarbonization strategies and industrial symbiosis in the chemical and waste‐to‐energy sector

... 1−4 However, this sector remains one of the most energy-intensive and carbonemitting, heavily reliant on fossil fuels as both feedstocks and energy sources. 5,6 This has spurred the emergence of electrocatalysis, a revolutionary platform that bridges the gap between renewable energy and chemical manufacturing. 7 By leveraging electricity�especially from solar, wind, and hydro-power�electrocatalysis enables the conversion of simple, abundant molecules into high-value chemicals and fuels, such as hydrogen, ammonia, formic acid, and hydrogen peroxide. ...

Reference:

Solid-State-Electrolyte Reactor: New Opportunity for Electrifying Manufacture

... World Wide Web was introduced in the early 1990s as a global information interchange system [3]. Since then, the web has transformed into the most significant available application platform thanks to the advent of web applications, as the platform reaches two-thirds of the global population these days [18,45]. To enable applications on top of the web, the platform had to be retrofitted to suit the purpose while the amount of dynamic functionality on websites has been growing. ...

Reference:

The Potential of Serverless Edge-powered Islands for Web Development

... In this regard, Boyce et al. 15 analyzed global ammonia decarbonization scenarios, concluding that while up to 70% reduction could be achieved in climate impacts, complete decarbonization of this sector is unlikely by 2050. Moreover, Nabera et al. 16 presented regionalized prospective LCAs of key platform chemicals, concluding that green routes could achieve up to 90% carbon emissions reductions. ...

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Sustainable Development Goals-Based Prospective Process Design Using Hybrid Modeling

... With regard to the transition to a BE, the relevance of the product groups of the bio-based value pyramid in terms of value and volume must change. Bioplastics and polymers as well as bulk chemicals and materials are in focus of research and seem to gain in importance and market share (Mitchell et al. 2024;Shah et al. 2020). Energy, heat and fuels from biomass are supposed to be surpassed by other renewable energies not based on biomass (European Commission 2021a). ...

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LCA standards for environmental product assessments in the bioeconomy with a focus on biogenic carbon: A systematic review

... Surrogate-based optimization has also been applied to process systems for resource recovery from wastewater, integrating DFO modeling tools that incorporate classification surrogate models and address uncertainties, thereby offering holistic solutions to reduce environmental impacts in food and beverage production [15]. In addition to the above, many other surrogates have been used, from Graph Neural Networks (GNNs) for Granular Flows [20], to symbolic regression-based surrogates for flexibility analysis [21], to Quantile Neural Networks for Two-stage Stochastic Optimization [22]. An overview of data-driven and hybrid models for subsequent optimization of separation processes can be found in [23]. ...

Reference:

Surrogate-Based Optimization Techniques for Process Systems Engineering

... Their study demonstrated that, when integrated with efficient stochastic algorithms, these data-driven models can identify high-quality optimal solutions while significantly reducing the computational time. [33][34][35] lists selected examples of state-of-the-art developments in the application of AI in process synthesis and design. The first example is an AI-based multi-level flowsheet representation and generation framework that incorporates text-based, hypergraph-based, and ontology-based methods with embedded model-based calculation tools [17], where flowsheets at each level, represented by the extended simplified flowsheet-input line-entry system (eSFILES), are connected with process generators, process simulators, and inferencing algorithms to solve various flowsheet-related interconnected problems. ...

Reference:

A Perspective on Artificial Intelligence for Process Manufacturing

... The renewable-based route utilizes the SOEC powered by wind electricity to produce H 2 and O 2 . The SOEC is modeled based on the work by D'Angelo et al., 47 in which an inlet water stream is heated up before entering the SOEC, where H 2 and O 2 are produced. The electrolysis products are cooled down, and unconverted water is separated from H 2 in a flash unit. ...

Reference:

Multi-Objective Optimization of a Hybrid Fossil/Renewable Carbon Methanol Cluster