Keppel and ExxonMobil to develop low-carbon ammonia solutions

Keppel and ExxonMobil to develop low-carbon ammonia solutions

ExxonMobil Asia Pacific has signed a memorandum of understanding (MoU) with Singapore’s Keppel Infrastructure to develop access to low-carbon hydrogen and ammonia for scalable commercial and industrial applications in Singapore.

Keppel Infrastructure is the infrastructure arm of Singapore-based Keppel Corporation, a global asset manager and operator with strong expertise in sustainability-related solutions spanning the areas of energy & environment, urban development and connectivity.

In addition to being a hydrogen carrier and storage medium, ammonia can be used directly as a carbon-free fuel or broken down into carbon-free hydrogen for use in power generation, as well as feedstock for refinery and petrochemical operations.

This MoU follows the Singapore government’s launch of its National Hydrogen Strategy in October 2022, which expects hydrogen to meet up to half of Singapore’s power needs by 2050. As part of this hydrogen strategy, the Energy Market Authority (EMA) and the Maritime and Port Authority of Singapore (MPA) issued an expression of interest in December 2022 for proposals to build, own and operate low- or zero-carbon power generation and bunkering facilities on Jurong Island.

Currently, natural gas meets most of Singapore’s power generation requirements. The collaboration between Keppel and ExxonMobilhas been formed to address the call to develop competitive solutions that can support Jurong Island’s sustainability goals and Singapore’s hydrogen strategy.

Keppel is also looking to use low-carbon hydrogen for Singapore’s first hydrogen-ready 600 megawatt (MW) advanced combined cycle power plant. The Keppel Sakra Cogen Plant is expected to operate with at least 30% hydrogen and will have the capability of shifting to run entirely on hydrogen. Currently under construction, the plant will be sited on Jurong Island and is expected to be completed in the first half of 2026.

At the same time, given the strong demand for low-carbon electricity in Singapore, Keppel is conducting a feasibility study to develop a power plant that could use ammonia directly as a fuel on Jurong Island. This would complement Keppel’s offering as Singapore’s leading independent power producer and retailer.

ExxonMobil is advancing its world-scale low-carbon hydrogen facility at its integrated complex in Baytown, Texas, from where ammonia will be produced. The low-carbon hydrogen, ammonia and carbon capture facility is expected to produce 1 billion cubic feet of low-carbon hydrogen per day, making it the largest low-carbon hydrogen project in the world with a planned startup date of 2027-2028.

More than 98% of the associated CO2 produced by the facility, or around 7 million metric tons per year, is expected to be captured and permanently stored.

“Deep decarbonisation of power generation and major industries is a key impetus for countries seeking pathways to net zero emissions. Globally, clean hydrogen is one of the most effective decarbonisation strategies, especially for hard-to-abate sectors, like maritime and petrochemical. As a forerunner in the energy space, Keppel is pleased to work with ExxonMobil to accelerate the end-to-end development and deployment of ammonia to support industries and Singapore’s sustainability goals,” said Cindy Lim, CEO of Keppel Infrastructure.

“ExxonMobil is pleased to work with Keppel to evaluate low-carbon solutions as part of our goal to reduce our emissions and help others reduce theirs. This is an example of how we can provide critical, scalable solutions to reduce CO2 emissions in support of our company’s and Singapore’s net-zero ambitions,” said ExxonMobil’s Asia Pacific President for Low Carbon Solutions, Irtiza Sayyed.