MOSCOW (MRC) -- SK Energy announced that it is in full swing to cooperate with Doosan Fuel Cell to establish the on-site hybrid energy stations that utilize fuel cells (Tri-gen) which can generate hydrogen, energy, and heat simultaneously, said Koreaittimes.
On-site is a system that generates hydrogen and directly uses it for charging. SK Energy, the oil business subsidiary of SK Innovation, signed a business agreement with Doosan Fuel Cell regarding “demonstration of hydrogen generation and utilization via linkage of hydrogen fuel cells and high-purity hydrogen production system” on November 21 (KST).
This agreement is a more concretized version of the MOU for “Joint development and industrialization of technologies to utilize rechargeable hydrogen fuel cells,” formerly signed by the two companies in August 2021. The agreement consists of the roles and responsibilities of the two companies: SK Energy takes charge of the provision, operation, and maintenance of its independently developed high-purity hydrogen production system, while Doosan Fuel Cell provides, installs, and maintains the Tri-gen, which can generate hydrogen, energy, and heat all at once using fuel cells. SK Energy is also to demonstrate the high-purity hydrogen production system linked with Tri-gen.
Both companies plan to finish the demonstration of the production system that can generate 99.99% high-purity hydrogen, as well as the recharging facility, in the first half of 2023. After that, they will establish a commercialized on-site hybrid energy station where both electric and hydrogen vehicles can be charged simultaneously.
A hydrogen charging station can generate approximately 1 ton of hydrogen per day, which is enough to recharge 200 hydrogen passenger cars or 30 hydrogen-powered trucks. At the same time, it is possible to charge EVs using the energy generated from Tri-gen, which opens the possibility of establishing hybrid charging stations once the applicable laws, such as the Electric Utility Act, etc., are amended.
Both companies are to cooperate step by step to expand hydrogen charging stations by 2026. Tri-gen, developed by Doosan Fuel Cell, utilizes 440 kW phosphoric acid fuel cells (PAFC). It has many advantages, such as a cost-competitive hydrogen supply for charging, a resilient response to the need for hydrogen for mobility, convenient charging for EVs, etc.
On the other hand, the high-purity hydrogen production system developed by SK Energy can generate 99.99% high-purity hydrogen out of low-purity hydrogen. The facility also has a lot of advantages, such as the miniaturization suitable for small on-site stations, reduction of operation costs, efficient operation through automatic control, a high recovery rate of hydrogen, and more. The technology that increases the purity of hydrogen to 99.99% is essential to charge hydrogen vehicles with the hydrogen generated by Tri-gen.
We remind that, as MRC informed earlier, South Korea's SK Global Chemical shut its small No. 1 naphtha-fed steam cracker in Ulsan permanently on Dec. 10, 2020, due to aging-related issues. The No. 1 steam cracker was able to produce 200,000 mt/year of ethylene and 140,000 mt/year of propylene. The company will keep normal operations of its No. 2 steam cracker at the same location. The No. 2 unit is able to produce 660,000 mt/year of ethylene, 350,000 mt/year of propylene and 110,000 mt/year of butadiene.
SK energy began in 1962 as Korea Oil Corporation, the first oil refinery in the country. The company has since contributed to national economic development by producing, exporting, and distributing petroleum products. SK energy's Ulsan Complex can process up to 840,000 barrels of crude oil per day, supplying petroleum products to both domestic and international markets.