Category: Energy Transition

Green ammonia production facilities can be situated in remote areas with access to often fully off-grid renewable power supply. This article examines plant concepts and discusses the challenges and solutions for these plant architectures. Through a case study, an efficient and innovative methodology to compare options and optimise the sizing of the plant is presented. The methodology addresses the intermittency of the power production, the flexibility limits of the main process units, and the costs of investment and operation, using proprietary techno-economic dynamic simulation software, Odyssey.

The pursuit of operational excellence requires continuous process monitoring, together with qualified analysis of the collected data. The Digital Process Monitor (DPM) provides a process digital twin which consists of an accurate process plant model that incorporates the licensor’s knowledge and expertise in sulphur recovery technology, thereby providing continuous insights into plant performance. This article provides an overview of the DPM features focusing on the related benefits in terms of overall operational improvements and plant efficiency for the sulphur recovery unit.

While the events of the past few years have been difficult for Europe on many fronts, including a wholesale realignment of its energy sources with the restriction of access to Russian oil and gas, the effect on Europe’s sulphur production seems likely to be just as profound.

As refiners adapt to the transition to a lower carbon economy, different strategies are likely to impact upon sulphur output.

Ammonia has been recognised as an advantageous hydrogen and energy carrier. This article focuses on the use of ammonia as fuel in steam reformers and ammonia crackers in order to reduce or completely eliminate direct CO2 emissions. Ammonia combustion knowledge is especially important for ammonia crackers with respect to the recycling of unconverted ammonia. Air Liquide is constructing an industrial scale pilot plant in Antwerp, planned to be operational in 2024, that will be used to demonstrate ammonia cracking and combustion in a process furnace with a multiple burner configuration.

Large-scale ammonia cracking technology and catalysts will enable the full potential of ammonia to be realised as industries transition towards low carbon energy. In this feature we report on the current status of ammonia cracking processes and catalysts.

New blue production schemes are available to meet the need to significantly reduce the overall carbon intensity of high-volume hydrogen and ammonia production for a large-scale emerging market. KBR, Air Liquide, Mitsubishi Heavy Industries, Casale and Johnson Matthey report on their latest technologies.

TOYO explores green methanol synthesis technology and the challenges in utilising renewable energy sources and introduces its g-Methanol® technology.

As the production of renewable methanol continues to scale up, it will provide a long term, carbon-neutral energy solution to different transport sectors. However, the optimum design parameters for green methanol plants are substantially different to natural gas-based methanol plants and pose new challenges to the methanol loop designer. Johnson Matthey discusses the challenges and presents the benefits of the tube cooled converter for e-methanol production.

One of the things that produced a lot of worried news headlines over the past couple of years is whether the energy transition is likely to lead to a shortage of sulphur as we switch away from fossil fuels on a large scale. As we’ve discussed in this magazine, those fears are overblown, certainly in the medium term future. Peter Harrison of CRU tackled the issue in his sulphur markets presentation at the recent Sulphur and Sulphuric Acid conference in New Orleans, and while he did admit to some reduction in sulphur supply from oil in the 2030s and increasing into the 2040s, increased sulphur recovered from sour gas is likely to more than make up for that at least until the 2040s. But one of the things that did strike me about his presentation is the extent to which the energy transition is indeed already changing the way that the sulphur market works, and will increasingly do so over the next few years.