Tag: Catalyst

Axens Catalyst Arabia Ltd to manufacture Tail Gas Treatment Catalyst on newly expanded site

Clariant's EnviCat N2O removal catalysts cuts 44,000 tons/month CO2e emissions at GNFC nitric acid plant in Gujarat, India

Johnson Matthey (JM) has released new production performance data which shows the significant improvements in efficiency of existing steam methane reformer (SMR) based hydrogen plants with the use of its catalyst, CATACEL SSR ™ . The company says that the data show that the catalyst can increase hydrogen plant capacity by 15% and reduce reformer energy use per unit of hydrogen by 15%, with a 5% reduction in gas consumption per unit hydrogen, as well as ease of installation, and enhanced durability and heat transfer. The catalyst uses uniquely engineered structures of thin metal foils, or “fans,” coated with catalysts through a proprietary process, which offer greater surface area, higher durability, and superior heat transfer, essential for high-temperature processes such as SMR.

Johnson Matthey (JM) has signed an agreement with Bosch, a leading supplier to the automotive industry, to develop and produce catalyst coated membranes (CCM) for use in fuel cell stacks. JM’s high performance CCMs will be used in Bosch’s integrated, compact and scalable fuel cell power module for commercial vehicles, designed for longer distances.

Apart from having a good plant design, good maintenance practices and good operational discipline are key to optimise the performance of an acid plant and to protect it from corrosion and achieve a long life. B. Mumba, T. Mwanza and P. Ng’ambi of Kansanshi Mining PLC explore the Kansanshi sulphuric acid plant operations and the key parameters monitored and practices adopted that have helped to extend the catalyst campaigns from two years to four years.

Carbon Recycling International (CRI), which operates a geothermally powered green methanol plant at Svartsengi, 40km southwest of Reykjavik, had to evacuate its site in late November when a 3km fissure opened in the earth a few kilometres away and lava began spilling across adjacent land. Satellite photos of the area taken on November 24 show a large field of molten and cooled lava to the north, west, and south of Svartsengi, though the plant itself remained undamaged. CRI’s Iceland facility runs on CO2 , water, and renewable electricity from the Svartsengi geothermal power station. CRI says the low-carbon energy source allows it to produce 4,000 t/a of methanol with a greenhouse gas footprint just 10–20% that of conventional methanol.

Due to ever stricter legislation towards lower SO2 emissions, superior catalyst shape and composition has become ever more important. Jochen Willersinn of BASF SE explains how BASF’s high-performance catalyst O4-116 Quattro combines the benefits of an increased surface area with a superior caesium-promoted active phase composition enabling significantly lower ignition and operating temperatures and thus reducing SO2 emissions.

This study introduces a new platinum-promoted honeycomb catalyst for sulphur dioxide oxidation, designed to enhance energy efficiency and reduce emissions in sulphuric acid production. Compared to conventional vanadium oxide based catalysts, the platinum-based catalyst demonstrates higher catalytic activity, lower ignition temperature, and significantly reduced toxicity.

QatarEnergy has announced its decision to build a new, world-scale urea production complex that will more than double Qatar’s urea production. The project is aiming to construct three ammonia production lines which will supply four new world-scale urea production trains in Mesaieed Industrial City. Total capacity for the new complex is projected to be 6.4 million t/a, more than doubling Qatar’s annual urea production from about 6 million tons per annum currently to 12.4 million tons per annum. Production from the project’s first new urea train is expected before the end of this decade.

A report on CRU’s annual Sulphur+Sulphuric Acid Conference, held in Barcelona, in early November.