Tag: Catalyst

Reducing carbon footprint in the synthesis of chemicals is a new challenge, a necessary requirement in the pursuit of sustainable products designed to minimise environmental impacts during their whole lifecycle. So-called “green” technologies for ammonia, methanol and hydrogen are being developed to meet these challenges. Casale, Linde, thyssenkrupp Industrial Solutions, Toyo Engineering Corporation, Haldor Topsoe and Stamicarbon report on some of their latest developments.

In China, requirements for methanol to produce olefins, mainly propylene and ethylene, from coal, has driven much of the growth in global methanol demand over the past decade. However, a new wave of ethylene cracker investment may put a stop to new MTO plant building.

Nitrogen-rich wastewaters remain a major issue for fertilizer and other industries. Saipem’s new electrochemical technology, SPELL, is an important step towards the overall objective of zero industrial pollution. A complete engineering review of the technology, its alignment with all international applicable standards, and optimisation has now been concluded and the technology is ready for deployment for the removal of ammonium nitrogen from industrial waters and wastewaters. Saipem discusses the key features of SPELL and reports on the first two industrial references.

Lithium-boron miner ioneer Ltd has awarded DuPont Clean Technologies a contract for the license, engineering, and supply of proprietary equipment for a planned sulphuric acid plant at the company’s Rhyolite Ridge project in Nevada. DuPont will work with engineering partner SNC-Lavalin on the plant design, using MECS® sulphuric acid technology for the 3,500 t/d sulphur-burning unit, as well as controls that limit emissions to among the lowest in the world for this type of facility. DuPont will also supply its latest generation MECSSuper GEAR® ™ catalyst and other critical proprietary equipment. The contract is conditional on a final investment decision by the ioneer board of directors.

Developments in sulphuric acid technology and engineering know-how are highlighted by recent project case studies from DuPont Clean Technologies, Metso Outotec and thyssenkrupp Uhde.

M. Rameshni and S. Santo of RATE discuss different sour water stripping gas processing options, depending on contaminants in the sour water streams and site-specific requirements.

The UK has published its Hydrogen Strategy, setting out the government’s ambition to create a low carbon hydrogen sector, with up to one third of the UK’s energy consumption being hydrogen-based by 2050. The commitments set out in the strategy unlocks £4 billion of government investment by 2030. The government plans 5GW of low carbon hydrogen production capacity and the establishment of carbon capture, use and storage (CCUS) in four industrial clusters by 2030, as well as blending of hydrogen into the existing gas network and a ‘twin-track’ approach to hydrogen production, using both electrolytic and CCUS-enabled low carbon hydrogen production in order to scale up production in time to meet the UK’s 2030 and 2050 carbon emissions targets.

Johnson Matthey’s latest methanol synthesis catalyst, KATALCO™ 51-102, was introduced in 2018 to offer improved catalyst stability and therefore higher end-of-life activity and extended lifetimes than conventional methanol synthesis catalysts. Since launch, KATALCO 51-102 has been successfully installed in two methanol plants and a third is planned for later in the year. In this article Johnson Matthey provides an update on the proven performance of KATALCO 51-102 during lab and pilot scale testing as well as in customer plants. The application of catalysts made using the KATALCO 51-102 technology for methanol synthesis via new ‘green’ routes, such as using captured and purified CO2 in conjunction with ‘green’ hydrogen, is also discussed.

By utilising state-of-the-art technologies, nitric acid and ammonium nitrate producers are able to reduce the environmental impact of their production plants and make a key contribution to climate protection.

MegaZonE™ is a newly introduced layered loading technology for boiling water-cooled reactors used for methanol synthesis. This new concept is one of the latest results of the long-standing collaboration between Air Liquide Engineering & Construction and Clariant Catalysts to improve the methanol process flowsheet and optimise catalyst performance in the complete reactor system.