Repsol Tech Lab
The technique uses high-temperature pyrolysis for plastic waste recycling to foster syngas producition, which could be integrated downstream the furnace of the steam cracker.
The process will start with pre-processing of unsorted plastic waste streams which do not find any market and is landfilled or incinerated (including mixed plastics RDF, and textile (e,g, woven, non-woven, polyester). PREZERO will provide the waste from its sorting and management facilities, it receives unsorted plastic waste within Spain. Also, a waste stream sent by SCGC (ASEAN country) will be tested. These streams will be tested and pre-processed by applying an appropriate and compatible pre-treatment to achieve the parameters required for pyrolysis treatment process.
Economical parameters such as plastic waste price and availability will be considered in the selection of the plastic waste flows. It will be taken intoaccount for the variability of waste depending on time and location. This step is needed to ensure optimisation of the materials for best mix needed to produce polyolefins.
The pre-processed waste will be tested at ETIA where a small-scale pyrolysis unit already located. In parallel to phase 1, Repsol will build aTRL 7 pilot plant (including the pyrolysis unit, condensation unit, gas purification system and liquid upgrading system) at its Tech Lab in Spain. The plant will serve as the basis for testing, validation and optimisation of the entire recycling process to be scaled up at the demonstration scale (TRL 8-9).
In phase 3 of the project, the demo plant will be designed and built following conventional engineering workflow, but also innovative engineering solutions will be developed and applied as required. Near the end of the construction, the commissioning of the plant will bridge the gap between the construction and the start of plant operation. The commissioning is a critical stage to hand over a safe, efficient and operation-ready facility. After the commissioning of the plant, a 6-month operation campaign is planned in an industrial and integrated process.
Link to the technique (Basic Information)
Relevant alternative technique
Incineration and existing plastics recycling processes
Project partners
REPSOL SA ACTECO PRODUCTOS Y SERVICIOS SL ARTTIC INNOVATION GMBH CENTRO DE INVESTIGACIONES ENERGETICAS MEDIOAMBIENTALES Y TECNOLOGICAS - CIEMAT TECHNICAL UNIVERSITY OF DENMARK DTU E.T.I.A. - EVALUATION TECHNOLOGIQUE INGENIEURIE ET APPLICATIONS SA HOLCIM ESPANA SA PREZERO ESPANA SA SCG CHEMICALS COMPANY LIMITED SMART INNOVATION NORWAY AS TECNICAS REUNIDAS SA - TRSA TEKNOLOGIAN TUTKIMUSKESKUS VTT OY UNIVERSIDAD DE CASTILLA - LA MANCHA - UCLM
Plastics2Olefins project will design, build, and run a demonstration plant for recycling of unsorted plastic waste at Repsol’s industrial site (Spain), which will be digitalized and run on 100% renewable (electric) energy. The project estimates to reduce the lifecycle GHG emissions by 70-80% compared to incineration and existing plastics recycling processes, providing an important contribution to the EU reaching climate neutral by 2050 and set a pathway for commercialization of recycled plastic feedstock replacing fossil feedstocks.