
Sulphur: the fourth crop nutrient
Sulphur is becoming an increasingly important crop nutrient – due to a combination of lower sulphur emissions, the increasing prevalence of high-analysis fertilizers and higher cropping intensity.
Sulphur is becoming an increasingly important crop nutrient – due to a combination of lower sulphur emissions, the increasing prevalence of high-analysis fertilizers and higher cropping intensity.
Applied Analytics discusses potential improvements made possible with data and analytical measurements fed into improved mathematical models to produce a more proactive approach to control and better performance of sulphur recovery units, AMETEK Process Instruments explains the benefits of feed forward control, SICK reports on reliable continuous emission monitoring systems and WIKA introduces a new purge-free system to measure refractory temperature in the Claus reaction furnace.
Fluor/GAA continue to strive to improve the performance of the D’GAASS out-of-pit liquid sulphur degassing technology based on commercial operating experience and ever-changing environmental emissions regulations. T. Chow and S. Fenderson of Fluor Energy & Chemicals/ Goar, Allison & Associates discuss operating experience that has led to the improvements of the new patent-pending third generation D’GAASS 3G technology.
‘Green’ methanol means many things to different people. It encompasses low carbon emissions methanol manufacture at scale, recovery of material through waste gasification and conversion to methanol and power to liquid (e-fuel) methanol via electrochemistry and sometimes a combination of all of the above. Each route has a place in reducing the overall carbon footprint of production and subsequent use of methanol, driven by both governmental incentives or societal demand. In this article Andrew Fenwick of Johnson Matthey reviews the various routes to manufacture.
thyssenkrupp Industrial Solutions (tkIS) offers and builds Power-to-X plants and can provide all processes of the value chain, from water electrolysis and CO2 recovery to green ammonia, green methanol and green SNG. Renewable methanol production, which combines the application of carbon capture and utilisation with chemical energy storage, is a particularly promising sustainable solution.
BASF has filed a patent application for a greenhouse gas-free method for producing methanol. If successful on a large-scale, the process could eliminate carbon dioxide emissions throughout the entire production process from synthesis gas generation to pure methanol.
Leading nitrogen and phosphate producers, including ICL, OCP and Yara, have all launched major sustainable fertilizer production projects. The aim is to incorporate recovered nutrients or low-carbon feedstocks into their manufacturing processes.