Continuous monitoring of sulphur recovery units (SRUs) has proven to be an excellent tool for energy optimisation and emissions reduction, yielding financial incentives in the form of CO2 credits and sustainability. Even in markets with limited CO2 credits, significant economic benefits can still be realised through reduction in utility consumption, as demonstrated by a recent collaboration between Worley Comprimo and PRefChem in Malaysia.
MHI has successfully completed the Ghorasal Polash Urea Fertilizer Project in Bangladesh - the country’s largest fertilizer complex. Key features of the project include: the KM CDR Process™ that captures CO2 , cuts emissions and boosts urea output; an energyefficient granulation unit using a bulk flow cooler to reduce power demand; and reinforced digital safety management.
As I write this editorial, the 30th meeting of the Conference of the Parties (COP) to the UN Framework Convention on Climate Change – aka COP-30 – is taking place in Brazil. It is fair to say that the attempt to try to restrict a large greenhouse gas-driven temperature rise across the planet has become one of the defining issues of our age, and particularly for an energy-intensive industry such as our own, responsible as it is for up to 2% of global carbon and carbon equivalent emissions. The move towards lower carbon intensity production of hydrogen, ammonia and methanol, via carbon dioxide capture and sequestration, gasification of biomass or waste, or electrolysis of water using renewable power, has come to dominate our news coverage, and in this issue we also carry articles on the state of play of both ‘blue’ and ‘green’ ammonia production, as well as technology for ‘cracking’ ammonia back to hydrogen and nitrogen for its potential use as a hydrogen carrier.
Hy2gen receives zoning plan approval for the Iverson renewable ammonia plant - the plant is expected to reduce around 3 million tons of CO2 emissions in its first ten years.
Nitric acid demand continues to be dominated by fertilizer uses via various nitrate and NPK fertilizers, but industrial chemical production, metallurgical uses and explosives production are continuing to contribute to growth, especially in Asia.
At the end of this year, the European Union’s Carbon Border Adjustment Mechanism (CBAM) will move from its transitional phase into its ‘definitive’ phase, whereby the carbon costs of goods entering the EU will need to be priced in. CBAM requires suppliers to calculate the carbon emissions of their fertilizer (and other, e.g. steel) products, including indirect emissions, for example from electricity consumed in the process, and emissions of precursor or raw materials. They will then need to purchase CBAM certificates to cover embedded emissions above the established free allowance benchmark rates determined by the European Commission: 1.57 tonnes CO2e/tonne ammonia and 0.23 tCO2e/t nitric acid.
Clariant to manufacture catalyst for SYPOX e-SMR - planned to produce 150 tons of syngas a day
thyssenrkupp Uhde's EnviNOx® technology for Covestro Baytown site
Kazakhstan Zinc (KazZinc) is progressing with plans to reduce sulphur dioxide emissions from its Ust-Kamenogorsk site following an environmental audit in December 2024 as a result of smogs caused fugitive emissions which forced residents to stay indoors. The site has reduced emissions from 69,000 t/a in 2011 to 15,000 t/a, but plans to invest $210 million in in new technologies, including sulphur dioxide recovery systems and upgraded filters for solid particle capture. The key measure is the modernisation of gas purification units which is expected to reduce SO2 emissions by 2,200 t/a by 2026. Another important initiative is the construction of the “Hydropolimet” workshop at the KazZinc Ridder metallurgical complex, which aims to reduce sulphur dioxide emissions by 714 t/a.
Axens says that it has completed the expansion of its Axens Catalyst Arabia Ltd site, aimed at providing local and regional partners with the latest tail gas treatment catalysts, in addition to the site’s legacy catalyst hydroprocessing manufacturing capacity. This makes Axens is the first and only company to produce tail gas treatment catalysts in the Middle East. The company says that the expansion consolidates its capacity to serve its regional customers to meet regulatory requirements and maximise sulphur recovery by up to 99.9%, minimising SOx emissions. The production site supplies the region’s refining and gas industries with the latest generation of Axens’ catalysts, capable of operating at lower temperatures than conventional catalysts, and resulting in lower energy consumption.