TGU catalyst poisoning and deactivation
With the aid of a rigorous kinetic model for TGU hydrogenation reactors, incorporating catalyst deactivation mechanisms, designers and operators can forecast the life expectancy of reactor catalyst beds.
With the aid of a rigorous kinetic model for TGU hydrogenation reactors, incorporating catalyst deactivation mechanisms, designers and operators can forecast the life expectancy of reactor catalyst beds.
The possible failure of refractory in a Claus unit is a concern to both licensors and operators of Claus units. Bob Poteet of WIKA discusses a novel and easy way to monitor the shell temperature of the Claus thermal reactor using proven technology and highlights the benefits a purge-less thermocouple system for high temperature measurement.
The International Methanol Technology Operators Forum (IMTOF) met at the Leonardo Royal St Paul’s hotel in London from June 11th-14th.
Hydrocarbon-based production of ammonia carries an unavoidable carbon footprint. But one of the best methods for mitigating that footprint is already here: ultra-low carbon-intensity ammonia production, also known as “blue” ammonia. With blue ammonia production, a typical ammonia plant can sequester or repurpose game-changing volumes of carbon dioxide that would otherwise end up in the atmosphere. To help foster an optimal understanding of the benefits, Ameet Kakoti and Per Juul Dahl of Topsoe A/S provide an overview of the technologies that can help any ammonia operation achieve and maintain sustainable operations – sooner rather than later.
The world’s transition toward the use of hydrogen and ammonia as clean energy and fuel sources will depend upon production technologies that are affordable, scalable, and meet net zero carbon targets. 8 Rivers recently introduced8 RH2 , a groundbreaking solution that offers world-leading efficiency in hydrogen production and captures over 99% of CO2 emissions. Maulik Shelat of 8 Rivers provides an overview of the technology with a comparison to other low-carbon hydrogen production technologies.
Linde has developed a new adsorptive carbon dioxide removal process, called HISORP® CC, including but not limited to blue ammonia production. Based on a combination of mature technologies the process overcomes the drawbacks of traditional CO2 removal techniques and provides a carbon capture rate of greater than 99%. Thomas Ried discusses the pros and cons of different process configurations for CO2 removal and the benefits of the new technology.
Maire SpA subsidiary Tecnimont, together with Orascom Construction SAE, have been awarded a lump sum turn-key engineering procurement and construction contract for new nitric acid and ammonium nitrate plants by the Egyptian Chemical Industries Company (‘Kima’). The contract value is approximately $300 million, of which about $220 million relates to Tecnimont activities. Finalisation of the contract is subject to successful execution of the financing package. The scope of work includes mainly engineering, supply of all materials and equipment – to be performed by Tecnimont – as well as construction activities, to be carried out by Orascom Construction.
Highly efficient ammonia synthesis and subsequent cracking to hydrogen are key processes in the transition to the green hydrogen economy. Catalysts play an important role in the ammonia cracking process. Clariant offers both nickel and precious metal catalysts for this application and research on robust catalysts that allow lower temperatures for increased energy efficiency is ongoing.
Kazakhstan’s oil and condensate output increased by 7% from 1.79 million bbl/d to 1.92 million bbl/d in early June after sour gas reinjection operations resumed at the Kashagan offshore oil and gas development following a recent outage, according to the Kazkah Energy Ministry. Reinjection of sour gas into two wells resumed on 8th June, enabling operator the North Caspian Operating Company (NCOC) to boost oil and condensate production at a large artificial island in Kazakhstan’s Caspian Sea waters. Reinjection was paused on May 20th following the detection of sour gas during routine sampling and a subsequent integrity test. Kashagan normally produces about 300,000 barrels of oil per day. Kazakhstan expects Kashsgan to raise oil production this year to 18.2 million t/a from 12.7 million t/a in 2022.
Metso Outotec’s annual general meeting (AGM) in early May approved the board of directors’ proposal to change the company name to Metso Corporation. “After the successful integration of Metso and Outotec, we will focus on growing a strong unified Metso company and brand,” says President and CEO of Metso, Pekka Vauramo. “We have combined two valuable companies into one strong Metso. Our focus is clear: we continue enabling sustainable modern life and transforming the industry with a clear strategy and strong culture, supported by a name that is short yet established and well recognized among all our stakeholders. Services are an extremely important part of our business, requiring a strong name.”