Gasification technology offers the promise of being able to convert the increasing volumes of municipal waste generated by society into useful chemical products. In spite of a patchy commercial record, interest in the process remains high.
Because of the ongoing pandemic, this year’s CRU Nitrogen + Syngas conference was held as a ‘virtual’ event, in early March 2021.
Ammonia synthesis catalysts have long lives and catalyst replacement is an infrequent activity. Many people will go through their careers in the ammonia industry without ever having to replace a synthesis catalyst and the infrequent nature of catalyst replacement means that many plants may not have direct experience of this activity. Ammonia synthesis catalyst can present a range of hazards throughout the replacement process, from transport through loading, reduction, start-up, shutdown and discharge, but the good practice illustrated in this article, and collaboration between catalyst suppliers and end users can ensure safe and successful catalyst changeouts.
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.
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.
Johnson Matthey and KBR have announced that they have signed a global strategic alliance agreement to license a new ammonia-methanol co-production process that combines the companies’ ammonia and methanol process technologies. The companies say that the co-production process makes the most of synergies between the two technologies, maximising savings while offering the highest levels of safety, flexibility and reliability.
thyssenkrupp Industrial Solutions discusses a revamping concept to reduce CO2 emissions by replacing some of the hydrogen in the front end of the ammonia plant with green hydrogen, KBR and Casale report on revamp options to increase the capacity of vintage ammonia plants in the former Soviet Union, Johnson Matthey presents a novel integrated ammonia flowsheet for the production of ammonia, methanol, urea and UFC and Arvos | Schmidtsche Schack discusses the benefits of a new process gas boiler.
Troubleshooting and root cause analysis help to identify and solve problems in the operation of nitric acid plants and to prevent future reoccurrences. Johnson Matthey, Casale and Sabin Metal Corporation discuss their approach to solving problems in nitric acid plants to improve plant reliability and efficiency and to avoid unplanned shutdowns, costly replacement of equipment and loss of production.
Johnson Matthey (JM) has been selected by China’s Ningxia Baofeng Energy Group as licensor for a third methanol synthesis plant at their coal to olefins complex near Yinchuan in Ningxia province. With a planned capacity of 7,200 t/d (2.4 million t/a), the unit will be the largest single train methanol plant in the world once completed.