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Tag: Hydrogen

Sulphuric Acid News Roundup

Shell Global Solutions International BV (Shell) has awarded Worley two contracts for PT Pertamina EP Cepu’s (PEPC) new sulphuric acid plant in Indonesia. This plant is part of the Jambaran-Tiung Biru utilised gas field project for PEPC, which is a subsidiary of PT Pertamina-Indonesia’s state-owned energy company. Under the contracts, Worley will supply be supplying Chemetics’ cooled oxidation reactor (CORE) technology. This is the first time that CORE will be paired with Shell’s Cansolv SO2 capture technology. Worley gained the Chemetics technology as part of its Jacobs Energy, Chemicals and Resources acquisition last year. Cansolv controls the emissions and captures additional by-product value from the sulphur dioxide emitted from various refinery flue gas streams (such as cracking units, process heaters and boilers), sulphur plants and spent acid regeneration units. Sulphur dioxide can be recycled to the sulphur recovery unit to be produced as marketable sulphur or converted to sulphuric acid.

Degradation of chemical additives under downhole conditions

When producing from shale reservoirs, technologies such as horizontal drilling and hydraulic fracturing have been used successfully to access hydrocarbons that otherwise could not be. A less publicised issue in producing from certain hot shale gas reservoirs (T > 100°C) is the presence of H2 S and organo-sulphur compounds in the production fluids. In trying to understand the non-biogenic sources of H2 S, Alberta Sulphur Research Ltd has been involved in studying the decomposition of chemicals used in hydraulic fracturing when exposed to high temperature and high pressure.R.A. Marriott, J.J. Marrugo-Hernandez and R. Prinsloo of ASRL discuss the findings of the study.

Syngas News Roundup

Methanex has said that, in light of the uncertainty in the global economy from the Covid-19 pandemic, it will defer approximately $500 million of previously announced capital spending on its $1.4 billion Geismar 3 methanol project for up to 18 months. Geismar 3, which is intended to eventually produce 1.8 million t/a of methanol, will be placed on temporary “care and maintenance” for up to 18 months, enabling the company to complete the project when market conditions improve. Methanex says it will spend $100 million in Q1 2020 and a further $200 million from April 1, 2020 to September 30, 2021 on the project, the majority of which is spending that occurred or was committed during Q1 2020. This is approximately $500 million lower than the $800 million that was expected to be spent over that same period. Construction activity and procurement of non-critical equipment and bulk materials will be suspended until market conditions allow the Geismar 3 project to restart.

The new normal

The devastating effects of the Covid-19 pandemic continue to be felt around the world. At time of writing, nearly 4 million cases have been recorded, and at least a quarter of a million people have died, with the suspicion of many more, either from accidental or deliberate undercounting. Figures for excess deaths above a normal seasonal baseline show that places such as Turkey, Ecuador and Indonesia have probably been far worse affected than the official statistics show. There are nevertheless finally hopeful signs that Europe, so far the worst affected region, is beginning to follow the pattern of East Asia and Oceania and that cases are falling. The infection also seems to have peaked in North America, though in the US there is a long tail of infections. Elsewhere, cases are still rising in countries such as Brazil and Mexico.

Better monitoring and control in Claus plants

Applied Analytics discusses potential improvements made possible with data and analytical measurements fed into improved mathematical models to produce a more proactive approach to control and better performance of sulphur recovery units, AMETEK Process Instruments explains the benefits of feed forward control, SICK reports on reliable continuous emission monitoring systems and WIKA introduces a new purge-free system to measure refractory temperature in the Claus reaction furnace.

Nitrogen Industry News Roundup

At the Nitrogen+Syngas Conference 2020, held in The Hague, Netherlands, Haldor Topsoe launched its new TITAN ™ series of steam reforming catalysts. The company says that the new series, which consists of the RC-67 TITAN and RK-500 TITAN catalysts, offers improved performance and longer catalyst lifetime thanks to the hibonite-rich composition. The addition of titanium promoters adds exceptional mechanical strength while a seven-hole cylindrical shape yields both a very low pressure drop and a high surface area. Pressure drop build-ups in syngas plants can cause unscheduled downtime and cost millions of dollars, while thermal instability during operation can lead to operational risk and reduce plant lifetime. Topsoe says that the catalysts can mitigate these risks, ensuring lower operating costs, increased profit margins, and reduced energy usage.