An innovative thermochemical cycle based on solid sulphur for integrated long-term storage of solar thermal energy

SULPHURREAL aims to develop a carbon-free process for converting solar energy into storable chemicals using innovative catalysts and reactors for efficient sulphur conversion and industrial symbiosis.

Subsidie
€ 3.982.133
2023

Projectdetails

Introduction

SULPHURREAL aims at demonstrating and validating a breakthrough approach for next generation, carbon-free, direct conversion of solar energy into chemicals storable for a virtually unlimited time, based on elemental sulphur produced and consumed on-demand via a solar-aided thermochemical cycle.

Project Objectives

The project is targeted on the one hand to develop disruptive catalytic technologies for the two catalytic steps of this solid sulphur thermochemical cycle, namely:

  1. The high- (800-850 °C) and medium- (600-650 °C) temperature catalytic SO3 splitting to SO2 and oxygen.
  2. The subsequent disproportionation of SO2 to solid sulphur and sulphuric acid.

Research Focus

The research line involves identifying, developing, and testing novel catalysts and reactor designs under operating conditions. The goal is to integrate and perform these two, less developed steps of the cycle, compared to sulphur combustion, in sequence with maximum compatibility in a first-of-its-kind integrated approach.

Innovations

Innovations to be introduced concern not only novel catalyst compositions but also:

  • Novel reactor designs.
  • Methods of applying and distributing the catalysts within the reactors.

These innovations aim to achieve maximum utilization of the active catalytic materials and an optimal combination of improved performance, conversion efficiency, and process cost reduction.

Upscaling and Development

On the other hand, SULPHURREAL will further develop and upscale a first-of-its-kind sulphur burner operating at power density > 5 MW/m² at ambient pressure. It has demonstrated potential for prolonged operation at power densities of > 75 MW/cbm for typical operating pressure of 15 bar by simulations.

Integration with Circular Economy

The proposed combination integrates renewable energy sources (solar energy) with valorization of non-CRM substances currently produced as industrial by-products from:

  • Oil and gas (solid sulphur).
  • Steel industries (Fe-containing slags).
  • Industrial-scale chemicals production (sulphuric acid industry).

This approach is in absolute accordance with a circular economy environment and industrial symbiosis.

Financiële details & Tijdlijn

Financiële details

Subsidiebedrag€ 3.982.133
Totale projectbegroting€ 3.982.133

Tijdlijn

Startdatum1-10-2023
Einddatum30-9-2026
Subsidiejaar2023

Partners & Locaties

Projectpartners

  • DEUTSCHES ZENTRUM FUR LUFT - UND RAUMFAHRT EVpenvoerder
  • ETHNIKO KENTRO EREVNAS KAI TECHNOLOGIKIS ANAPTYXIS
  • AGENZIA NAZIONALE PER LE NUOVE TECNOLOGIE, L'ENERGIA E LO SVILUPPO ECONOMICO SOSTENIBILE
  • KARLSRUHER INSTITUT FUER TECHNOLOGIE
  • PANEPISTIMIO PATRON
  • THE PROVOST, FELLOWS, FOUNDATION SCHOLARS & THE OTHER MEMBERS OF BOARD, OF THE COLLEGE OF THE HOLY & UNDIVIDED TRINITY OF QUEEN ELIZABETH NEAR DUBLIN
  • RISE RESEARCH INSTITUTES OF SWEDEN AB
  • EXOMATTER GMBH
  • SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN

Land(en)

GermanyGreeceItalyIrelandSwedenFrance

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