Nitrogen+Syngas
The magazine for the nitrogen and syngas industries

Latest issue:
May/June 2019

• Plant Manager+ Problem No. 54: High efficiency trays for the urea reactor
  The main reasons for the installion of high efficiency trays (HET) in a urea reactor are as follows: 1) to improve the redistribution of unreacted carbon dioxide inside the liquid phase rich in free ammonia, 2) to reduce the back mixing phenomena due to the density increase of carbamate and urea solution from the bottom to the top of the reactor and 3) to reduce channelling which has a negative effect on the solution residence time.

  Full article: 801 words | add to basket (£25)

• Return of US methanol capacity
  The US has seen a huge upturn in domestic methanol production, as cheap natural gas lures back capacity that had drifted overseas, and offering the possibility of the country becoming a net exporter in just a few years.

  Full article: 2,170 words | add to basket (£25)

• China's urea industry: a dramatic turnaround
  The impact of China's environmental crackdown and rising domestic feedstock prices has been to decimate the country's urea capacity. Exports are falling year by year – could China become a net importer again?

  Full article: 2,588 words | add to basket (£25)

• The merchant ammonia market
  New capacity has is being developed in Russia, Indonesia and the Middle East, while the US continues to build plants aimed at import substitution, reducing demand there.

  Full article: 1,214 words | add to basket (£25)

• Strategies for ammonia and methanol co-production
  The ability to produce both ammonia and methanol in the same plant allows for synergies in process design as well as spreading market risk for a plant development. This article looks at some of Haldor Topsoe's most recent developments in the area.

  Full article: 1,581 words | add to basket (£25)

• Controlling the stresses of the primary reformer
  Risk associated with the primary reformer is highly dependent on its operation. In this article we look at common problems associated with catalyst tubes, pigtails, operating close to material limits etc. and discuss latest practices and new materials to prevent these issues and allow plants to run at maximum output without unplanned outages.

  Full article: 10,020 words | add to basket (£25)

• Science inspiring better catalysts
  Catalysts are a crucial part of every syngas and ammonia production unit. Catalyst performance is directly linked to the profitability of a plant. A robust catalyst that is easy to start-up and tolerant towards varying process conditions is also decisive for improving the on-stream factor of a plant. In this article Johnson Matthey discusses its inspiring science to extend purification and LTS catalyst life and Clariant reports on its latest catalyst developments for pre-reforming, reforming and HTS.

  Full article: 4,192 words | add to basket (£25)