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Tag: Waste

Challenges in the conversion to clean ammonia

VK Arora of KPI examines the technical and operational challenges of decarbonising legacy and new ammonia plants, drawing on a European case study of full-scale conversion supported by robust process and integration design. It also presents three US case studies exploring partial strategies, such as green hydrogen blending and oxygen enrichment, to reduce CO2 emissions and improve throughput. Together, these examples highlight a phased, cost-effective approach to decarbonisation, with blue hydrogen serving as a near-term transitional feedstock.

Repsol to invest in renewable methanol

Repsol has approved a historic €800 million investment in Ecoplanta, a pioneering project in Europe to transform urban waste into renewable fuels and circular products, adding a solution for reducing CO2 emissions in the transport sector, while at the same time promoting the circular economy. Located in Tarragona, the facility will be the first in Europe to produce methanol from municipal waste via a gasification process developed by Enerkem - a technology company in which Repsol is a partner – using waste that would otherwise end up in landfills or be incinerated.

Waste to methanol plant development

Maire Group subsidiary MET Development, together with Eni and utility company Iren Ambiente, have started the permitting process for a renewable methanol and hydrogen plant at Eni’s refinery in Sannazzaro de’ Burgondi near Pavia. The plant will be developed using NextChem’s NX Circular™ technology, which allows the plant to convert waste by generating syngas, which is subsequently used to produce high quality sustainable fuels and chemicals. Once completed, the plant will be able to convert approximately 200,000 t/a of non-recyclable waste supplied by Iren’s waste management unit Iren Ambiente into synthesis gas. This will in turn be converted to produce up to 110,000 t/a of renewable methanol, as a potential fuel for decarbonisation of the maritime sector. It will also produce up to 1,500 t/a of hydrogen, which could be used in refinery processes, reducing CO2 emissions compared to fossil-generated hydrogen, or, alternatively, for sustainable mobility in road and rail transport. The plant will also recover 33,000 t/a of inert granulate, which can be used for the cement industry. The plant will use infrastructure and services already available at the refinery to optimise costs.