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.
CRU’s Sulphur + Sulphuric Acid 2023 Conference and Exhibition takes place at the Sheraton New Orleans, Louisiana, USA, 6-8 November. Take part in this leading annual forum for the global sulphur and sulphuric acid community to learn, connect and do business. Hear from industry leaders and subject experts from around world and across the industry.
Adani Enterprises says that its new greenfield copper smelter at Mundra in Gujarat, being developed by its subsidiary Kutch Copper Ltd, will begin operations in March 2024. The $1.1 billion project will have an annual production capacity of 1 million t/a of copper once the second phase is complete, but the March 24 start-up will be for the first, 500,000 t/a phase. The plant will also produce 25 t/a of gold, 250 t/a of silver, and 1.5 million t/a of sulphuric acid and 250,000 t/a of phosphoric acid as by-products. India currently imports roughly two million t/a of sulphuric acid since the closure of the Vedanta smelter in Tamil Nadu.
Comprimo and Ametek now offer the Analyser Air Control Technology (2ACT) Solution to the industry in which the information for the SRU air control is available 6-7 minutes earlier with the installation of an acid gas feed analyser-based feed forward control. This improvement to conventional SRU combustion air control systems enables operating companies to control their assets closer to design capacity at higher recovery efficiency and with fewer unscheduled outages.
Ammonia production at Billingham in Teesside looks set to end, bringing to a close a history of production that dates back almost a century.
The quality of finished fertilizers can be maintained during transport, handling and storage by protecting the surfaces of granules and prills with coating agents. Valuably, fertilizer coatings can also be used to control the release of nutrients in the field.
Crop residues are the plant materials that are left in the field after the harvested portion is removed. Many growers are increasingly valuing these materials due to their nutrient content and soil health benefits. Dr Karl Wyant, Nutrien’s Director of Agronomy, highlights the value of crop residues and discusses how to manage these more effectively without interfering with on-farm activities. Ag retailers, in particular, are well-placed to advise growers on how to unlock value from their residues.
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.
Paz Muñoz and Carmen Perez of Stamicarbon discuss the strategic selection of future-proof technology for nitric acid plants. To produce nitric acid in a feasible and sustainable way, manufacturers must carefully choose the right technology and consider the capex and opex involved in the production process to ensure long-term profitability.
Horisont Energi has the aspiration to develop the most carbon and energy efficient blue ammonia plant in the world, an environmentally friendly plant with a focus on sustainable solutions. This article describes the main features of the Barents Blue Ammonia project, such as 99% carbon capture rate target, a high degree of modularisation, winterisation, infrastructure for ammonia and CO2 management and the provision for future expansion.