Sulphuric acid in the titanium dioxide industry
Reg Adams of pigments and titanium dioxide consultancy Artikol reviews the demand for sulphuric acid in the manufacture of TiO2 , and the prospects for consumption over the next few years.
Reg Adams of pigments and titanium dioxide consultancy Artikol reviews the demand for sulphuric acid in the manufacture of TiO2 , and the prospects for consumption over the next few years.
Haldor Topsoe and Comprimo® have announced a global strategic alliance to jointly license the TopClaus sulphur removal and recovery technology. TopClaus combines Topsoe’s energy efficient wet sulphuric acid (WSA) process with the industry-standard Claus process, enabling plant operators to handle acid gases and achieve sulphur removal efficiencies of above 99.9%. The Claus part of the unit recovers elemental sulphur from acid gases, and the tail gases from the Claus unit are then treated in the WSA unit, where the remaining sulphur compounds are converted into sulphuric acid.
An advanced mecaptan removal process has been developed and implemented by RATE. The RATE-Oximer process is an oxidative air-based regeneration process, designed to remove mercaptans from liquid and vapour phases. M. Rameshini of RATE describes the key features of the process and its applications.
TechnipFMC’s EARTH ® technology, with its structured catalyst jointly developed by TechnipFMC and Clariant, has been proven to be a cost effective way to drastically improve productivity and energy efficiency of the steam reforming process, while reducing the CO 2 footprint per unit hydrogen and syngas product. The technology can be applied in projects to increase the capacity of ammonia and methanol plants and allows significant reduction of greenhouse gas emissions. S. Walspurger of Technip Benelux B.V. and S. Gebert of Clariant GmbH report on the EARTH ® technology and its applications.
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.
New technology makes it possible for methanol producers to diversify their product portfolio and participate in the high growth mono ethylene glycol market. A. Shah of Johnson Matthey reports on the development of the new technology and its commercialisation.
Falling costs for production of hydrogen by electrolysis are encouraging more serious consideration of using recovered carbon dioxide as a feedstock for chemicals and even fuels production.
As the world focuses on clean fuels for the 21st century, there is an emerging opportunity to use ammonia as a source of hydrogen. Hydrogen fuel cells are expected to play a significant role as part of a clean energy portfolio. T2M Global and its development partner, SAFCell, are collaborating to develop a modular system to produce hydrogen from ammonia using a novel solid state separation system that does not require pressure or solvents. P. Patel of T2M Global, C. Chisholm of SAFCell and V. Pattabathula of Incitec Pivot explain the challenges, the opportunities and the current status of this new technology.
West Texas Intermediate (WTI) forward oil prices for May dropped into negative territory during mid-April, on fears of lack of storage capacity to deal with the excess production. Forward prices for June were also nosing to equally unprecedentedly low levels.Elsewhere, Brent Crude spot prices dropped to $20/bbl, a fall of $50/bbl from the start of 2020.