The merchant market for sulphuric acid is only a small slice of overall global acid demand, dominated by smelter acid producers. Increasing replacement of acid imports by dedicated sulphur burning acid plants by end use consumers is reducing the scope for merchant sales and could lead to overcapacity in the near term.
A sulphuric acid plant in Northwest China is looking to capture its low-grade heat for re-use. With the support of Alfa Laval’s semi-welded plate heat exchangers and energy recovery expertise, in winter, all of the recovered low-grade heat could be put back into their system with 30% being used in production and the remaining 70% going to heating. During the summer, 14% of the energy that is no longer needed for indoor heating could be used to preheat boiler feedwater. This would enable them to significantly reduce the amount of fossil fuels used in production, without redesigning their entire factory footprint.
A report on CRU’s annual Sulphur + Sulphuric Acid conference, held in New Orleans, USA, 6-8 November 2023.
M. Rameshni and S. Santo of Rameshni & Associates Technology & Engineering (RATE USA) discuss some of the many solutions available to revamp sulphur plants to meet stricter environmental regulations with regard to SO2 and CO2 emissions. RATE technologies for the ultimate goal of achieving near zero SO2 emissions and World Bank requirements are also illustrated.
In spite of changing patterns of demand, deglobalisation and environmental concerns, phosphate mining and acid-based processing are likely to be the mainstay of the industry for years to come.
Anggi Arifin Nasution and Aldifi Putro of PT Petrokimia Gresik detail an inventive redesign of their economiser, a critical component in sulphuric acid production, focusing on energy efficiency, decarbonisation, process optimisation, and equipment durability.
Low carbon production is attracting considerable attention to using syngas derivatives as fuels, but there are considerable logistical and commercial barriers to overcome.
The CO2 emissions in a hydrocarbon fed hydrogen plant occur largely during the energy intensive syngas production step. Hydrogen production is therefore a major factor in the CO2 emission balance of an ammonia plant. BASF’s OASE® technologies for CO2 capture are capable of achieving cost-effective 99.99% carbon capture at scale. In this article Elena Petriaeva and Bernhard Geis of BASF investigate different grey and blue hydrogen production technologies.
Sustainable aviation fuel (SAF) is increasingly seen as a vital tool in the aviation sector’s transition to net zero. These drop-in fuels, which can be derived from bio and renewable-derived syngas, are used to dilute the fossil-derived components of fuel and are fully compatible with existing fuel infrastructure. This positions SAF as a convenient and rapid route towards decarbonisation. However, questions remain around its ultimate viability at scale and whether it really can be the ‘silver bullet’ aviation leaders are looking for. We spoke to Paul Ticehurst from Johnson Matthey (JM) to shed some light on SAF and the future role of syngas in aviation.
TOYO’s digital twin concept combines its unique digital twin at both the project execution stage and the commissioning stage, and when used in conjunction with its proprietary process simulator it can predict the whole plant lifecycle.