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Tag: Storage

Problem No. 66: Urea storage for bagged urea

Storing urea under hot and humid ambient conditions can be a chall enge. Several quality parameters of the urea product itself like moisture, temperature and particle size distribution are critical. Fluctuations of these parameters over time are also important and can lead to caking issues and complaints by clients. Off-spec product means big losses in revenue and results in a troublesome stream that has to be handled separately. Learning from each other’s experiences is vital to minimise and avoid these problems. n

Sizing hydrogen storage for green ammonia

Due to the inherent nature of the renewable power, sizing eSyngas plants powered with renewable energy brings complexity normally not faced by natural gas-based facilities. In this article, Dr Raimon Marin and Dr Solomos Georgiou of AFRY discuss the application of AFRY’s state-of-the-art modelling tool to optimise the size and production of a green hydrogen system and a green ammonia plant based on given renewable power profiles and their associated variability (e.g., hourly, daily, seasonally, and annually).

Lessons learned combatting corrosion in a sulphur granulation plant

The purpose of this article is to emphasise the lessons learned by ADNOC Sour Gas in the material upgrading of the Shah sulphur granulation plant due to severe corrosion of the aluminium components. The sulphur granulation plant was commissioned in 2015 and consists of a total of 12 granulating systems used for solidifying and granulating the liquid sulphur. The study focused on the corroded areas, namely the GX plenum chambers, the lower section of the granulator exhaust stack, the scrubber inlet and the discharge ducting.

Winter is coming

As we near the end of the third quarter of 2022, the attention of the nitrogen industry is focused on the coming northern hemisphere winter, and the prospects for higher natural gas prices as temperatures fall and power and heating demands rise. Vladimir Putin has been stoking these worries to try and force a climbdown from European countries over the sanctions that followed his invasion of Ukraine, with the flow of gas through the Nordstream 1 pipeline across the Baltic Sea gradually dwindling over the summer and finally stopping altogether at the end of August due to “technical issues” – an explanation somewhat undermined by the subsequent statement from spokesman Dmitry Peskov that gas would flow again once sanctions were eased. This is a familiar enough tactic; Russia has used gas stoppages to pressure Ukraine and Europe several times over the past two decades.