PhD position: modelling and optimization of processes to recycle low-grade biogenic waste

Job Description

As the Netherlands phases out fossil feedstocks, carbon becomes a critical raw material for everyday materials (e.g., plastics, asphalt, composites, batteries). While renewable carbon can come from biogenic waste, low-grade biowaste is often wet/contaminated and is therefore typically downcycled (e.g., low-value compost/animal feed) or incinerated, which also creates problematic bottom and fly ash residues and can spread persistent contaminants.

This leaves a major gap: how to valorize low-grade waste into high-value products beyond biofuels/biogas at industrially-relevant scales?

The NWA-ORC funded consortium project ABEL addresses this challenge by combining technology development with process modelling and assessment across the waste value chain. The members of the consortium include 4 other research Universities, 2 Universities of Applied Sciences, and companies across the value chain of biomass.

In this PhD project, you will develop state-of-the-art methodologies to:

• Design and scale up novel processes for the valorization of low-grade biowaste.
• Model transition pathways for the ABEL technologies to integrate into existing or new value chains.
• Minimize energy and resource use through efficient heat exchange, waste heat recovery, and optimized process conditions.
• Assess and reduce environmental impacts, such as greenhouse gas emissions.
• Validate models with literature and consortium data and in case studies defined by the consortium.

The PhD would join the Circular PSE group led by Dr. Somoza-Tornos and work together with other researchers modelling emerging technologies for the de-fossilization of the chemical industry. They would also be part of the Process Systems Engineering (PSE) section at TUDelft, that comprises a professional team dedicated to advanced computational research, with a collective focus on advancing the PSE field to bring new insights and sustainable developments.

Requirements

The ideal candidate will be an ambitious, proactive, reflective, and results-driven researcher. We are looking for the following:

• MSc degree in chemical engineering or similar field (essential).
• Strong background in chemical process modelling and design (essential).
• Prior experience with process optimization (desirable).
• Prior experience with techno-economic analysis and life cycle assessment (desirable but not required).
• Strong collaboration, communication and writing skills.

Conditions of employment

Doctoral candidates will be offered a 4-year period of employment in principle, but in the form of 2 employment contracts. An initial 1,5 year contract with an official go/no go progress assessment within 15 months. Followed by an additional contract for the remaining 2,5 years assuming everything goes well and performance requirements are met.

Salary and benefits are in accordance with the Collective Labour Agreement for Dutch Universities, increasing from €3059 - €3881 gross per month, from the first year to the fourth year based on a fulltime contract (38 hours), plus 8% holiday allowance and an end-of-year bonus of 8.3%.

As a PhD candidate you will be enrolled in the TU Delft Graduate School. The TU Delft Graduate School provides an inspiring research environment with an excellent team of supervisors, academic staff and a mentor. The Doctoral Education Programme is aimed at developing your transferable, discipline-related and research skills.

The TU Delft offers a customisable compensation package, discounts on health insurance, and a monthly work costs contribution. Flexible work schedules can be arranged.

Will you need to relocate to the Netherlands for this job? TU Delft is committed to make your move as smooth as possible! The HR unit, Coming to Delft Service, offers information on their website to help you prepare your relocation. In addition, Coming to Delft Service organises events to help you settle in the Netherlands, and expand your (social) network in Delft. A Dual Career Programme is available, to support your accompanying partner with their job search in the Netherlands.

Additional information

If you would like more information about this vacancy or the selection procedure, please contact , via [email protected].

Application procedure

Are you interested in this vacancy? Please apply no later than 31 August 2026 via the application button and upload the following documents:

• CV
• Cover letter
• Copies of your university degrees, and transcripts for your BSc and MSc programmes.

You can address your application to .

Doing a PhD at TU Delft requires English proficiency at a certain level to ensure that the candidate is able to communicate and interact well, participate in English-taught Doctoral Education courses, and write scientific articles and a final thesis. For more details please check the Graduate Schools Admission Requirements.

Please note:

• You can apply online. We will not process applications sent by email and/or post.
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