Magazine: 369 Jan-Feb 2021

A complete listing of all articles and news items that appeared in Nitrogen+Syngas magazine during 2020.

It can’t have escaped anyone’s notice that the question of the carbon intensity of ammonia and downstream nitrogen compound production has been one of the main industry talking points for the past year. Everyone seems to be talking about ammonia of different colours – green ammonia, blue ammonia, and all shades of turquoise in between. If you are confused, it may not be surprising, as these words have come to cover a wide variety of different methods and technologies for producing ammonia, and their green credentials consequently come in a whole range of different shades.

The year 2020 will be remembered as an uncertain, demanding and challenging year. When faced with a global pandemic, companies have adopted new approaches and remote inspection, monitoring and training using the latest digital tools has been key for the successful completion of projects. Stamicarbon, Casale and KBR share some of their experiences of the past year.

Clariant, says that Conrad Keijzer become its new chief executive officer as of January 1st, 2021. Interim executive chairman Hariolf Kottmann has thus returned to his position as chairman of the board. Keijzer is a Dutch citizen with a long track record in the chemical industry, including 24 years with leading global paints and coatings manufacturer AkzoNobel, where he was CEO of the Performance Coatings Division and a member of the Executive Committee. Most recently, Conrad Keijzer was CEO of Imerys, a French supplier of mineral-based specialty solutions.

NOx emissions from chemical processes such as steam methane reforming contribute to air pollution. The chemical industry is required to take steps to lower such emissions. Technology, developed for related industries, can be designed and optimised to reduce NOx emissions from steam methane reformers. Emission control experts can use a combination of modelling and experience to guide plant operators in recommending and designing optimum, sometimes tailor-made solutions. In this article different options are discussed including low NOx burners, selective catalytic reduction, selective non-catalytic reduction and high emissivity ceramic coatings.

Johnson Matthey (JM) has secured a multiple licence for China’s Ningxia Baofeng Energy Group’s latest project to develop five of the largest single train methanol plants in the world. Located at Baofeng’s Ordos City complex in Inner Mongolia, the five plants each have a planned capacity 7,200 t/d. Under the agreement Johnson Matthey will be the licensor of all five plants and supplier of associated engineering, technical review, commissioning assistance, and catalyst. The plants will take synthesis gas as a feed and use JM radial steam raising converters in a patented series loop. Within the design, there is potential for 1-2% more feedstock efficiency over the life of the catalyst. Thanks to JM’s methanol loop synthesis technology, the plants will provide enhanced energy savings along with low OPEX, CAPEX and emissions. When complete, the plants will represent JM’s 13th operating license in China for a mega-scale plant (>5,500 t/d) and the fourth JM methanol design licensed by Ningxia Baofeng Energy.

The following case studies describe serious incidents associated with leak detection system failures. Incident 4 relates to the failure of the active pressurised leak detection system for the loose liner of a urea reactor and Incident 5 relates to a passive leak detection system which failed to work leading to serious corrosion of the carbon steel wall of the HP scrubber.

Natural gas pricing remains the dominant component of ammonia production costs. The fall in global oil and gas prices due to the Covid outbreak and the continued growth in the LNG market is continuing to break the hold of oil indexation on gas pricing. Meanwhile, reform of gas markets continues, in places as diverse as Brazil, China and India.

Part 1 of a two part look at a potential sustainable future for the nitrogen industry, looking at sustainable nitrogen management and nutrient use efficiency.

This year the CRU Nitrogen + Syngas conference is going virtual. From 1 to 3 March 2021, the CRU virtual event will offer a live and on-demand agenda, interactive exhibition and enhanced networking capabilities on a platform tailored to make remote access as easy as possible.