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Tag: Production

A new focus

At the time of writing this editorial, the World Economic Forum was having its usual annual meeting in the Swiss resort of Davos. Prior to this year’s meeting, as usual the WEF had produced its annual Global Risks Report to serve as a talking point for the meeting. While some of the risks were as usual political and economic, from proliferation of weapons of mass destruction and the “retreat from multilateralism” to growing inequalities of wealth in the developed world and “domestic political polarisation”, for the first time in the organisation’s history, the top five global risks in the report ranked by likeliness – which looks at potential global pitfalls over the next 10 years – were environmental. Perhaps with the pictures of Australia’s bush fire season fresh in their minds, the 750 experts ranked extreme weather events as the most likely, but climate change, biodiversity loss and sustainability in agriculture all ranked highly.

Methanol routes to a lower carbon footprint

‘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.

Influence of flame velocity on secondary reformer design

The different flame velocities of reactants in the combustion space of a secondary reformer have a significant impact on the gas inlet temperature of the catalyst and the methane conversion in front of the catalyst. Based on this fact, Hanno Tautz Engineering introduces an alternative secondary reformer design. Compared with the state-of-the-art-technology, the alternative design shows advantages for hydrogen production efficiency and product capacity.

Ammonia plant upgrade and purge gas recovery

Cryogenic purge gas recovery units are very tolerant to increased flow from ammonia plant debottlenecking, especially the cryogenic cold box section. However, overload of the dehydration system upstream of the cold box can lead to fouling, loss of hydrogen recovery performance and the need for costly shutdown and thaw. Awareness of key plant parameters and some simple precautions can avoid such problems. A. J. Finn and T. R. Tomlinson of Costain provide some guidance.