SABIC Agri-Nutrients takes FID on the $3.47bn SAN-7 ammonia–urea complex, with post-combustion capture bolted on

SABIC Agri-Nutrients Company (SABIC AN) approved a final investment decision on 9 September 2026 for its SAN-7 project, a grassroots ammonia and urea complex in Jubail Industrial City, and signed the engineering, procurement and construction contract with South Korea’s Samsung E&A at a ceremony at SABIC’s Jubail headquarters. The contract is valued at roughly US$3.47bn.

The complex will produce about 1.2mn t/y of conventional, gas-fed ammonia using KBR technology, feeding two urea trains with a combined capacity of about 2.6mn t/y based on Stamicarbon and thyssenkrupp Uhde process technologies. That lifts SABIC AN’s urea capacity by roughly 54%, from about 4.8mn t/y to 7.4mn t/y. The plant incorporates post-combustion carbon capture, with recovered CO₂ routed into urea synthesis. Construction is scheduled to start in the fourth quarter of 2026, with commercial production targeted for the fourth quarter of 2030.

(SABIC AN is listed on the Saudi Exchange and disclosed the FID and EPC award through the exchange; the figures above are as reported by trade coverage of that disclosure.)

Why this is a heavier study than a standard fertilizer train

An ammonia–urea complex is already study-dense before anyone mentions decarbonisation. The ammonia side brings a large toxic-gas inventory, a high-pressure, high-temperature synthesis loop, and a hydrogen-bearing front end; the urea side adds its own high-pressure synthesis loop and the ammonium-carbamate corrosion and blocking concerns that shape both design and operating procedures. Two trains and shared utilities multiply the interface work — common relief systems, shared flare and vent capacity, and the sequencing logic that keeps one train’s upset from propagating into the other.

What makes SAN-7 more interesting than a like-for-like capacity replacement is the post-combustion capture unit. Bolting an amine-based capture plant onto an ammonia complex introduces a hazard set that is genuinely different from the host process: solvent degradation and the accumulation of heat-stable salts, amine and breakdown-product toxicity, thermal-reclaimer duty, and the tight thermal and CO₂-balance coupling between the capture plant and urea synthesis. Capture units are quietly becoming one of the larger sources of energy-transition PHA demand precisely because that coupling means a capture-plant trip or excursion is not a standalone event — it perturbs the process it is attached to.

What to expect in the study pipeline

A project on this timeline — FID now, construction from late 2026, production in 2030 — typically contracts its concentrated hazard-study effort across the FEED-to-detail-design window over the next 12 to 18 months. That usually means design HAZOPs on the ammonia, urea and capture units, SIL determination and verification against IEC 61511 for the safety-instrumented functions, and dispersion and siting studies driven by the ammonia inventory and occupied-building placement on a congested Jubail plot.

The generic answer — established, licensed technologies deployed at scale — covers the individual process blocks but not the site-specific integration: the tie-ins between capture and urea, the shared relief and flare philosophy across two trains, and the transient modes (startup, shutdown, train-swing, capture-plant bypass) where the interfaces are most exposed. Those are the questions a facilitator earns their fee on, and they are the ones a technology reference plant elsewhere cannot answer.

SAN-7 sits alongside the broader ammonia-and-capture thread the sector has been tracking — brownfield hydrogen integration, blue-ammonia FIDs, and Gulf gas-development projects — as another confirmed data point that design-stage process safety work in the ammonia value chain is not slowing down.