Hydrogen, steam methane reform (SMR) Process by Haldor Topsøe A/S

Produce hydrogen (H2) from hydrocarbon feedstocks such as: natural gas, LPG, naphtha, refinery offgases, etc., using the Haldor Topsøe sidefired steam-methane reformer (SMR) process. Plant capacities range from 5,000 Nm3/h to 200,000+ Nm3/h (4.5 MMscfd to 200+ MMscfd), and hydrogen purity ranges from 99.5% to 99.999+%.

Hydrogen, steam methane reform (SMR) Process by Haldor Topsøe A/S

The Haldor Topsøe SMR-based hydrogen plant can be tailor-made to suit the customer’s needs with respect to feedstock flexibility and steam export. In a typical low-steam export plant, the hydrocarbon feedstock is desulfurized. Subsequently, process steam is added, and the mixture is fed to a pre-reformer. Further
reforming is done in side-fired SMR. Process gases are reacted in a water-gas shift reactor and purified by the pressure swing absorption (PSA) unit to obtain product-grade H2. PSA offgases are used as fuel in the SMR. Excess heat in the plant is efficiently used for process heating and steam generation.

The SMR operates at high outlet temperatures [toabout 950°C (1,740°F)] while the Topsøe reforming catalysts enable low steam-to-carbon ratios. Both conditions (advanced steam reforming) are necessary for high-energy efficiency and low hydrogen production costs. This application of Topsøe’s reforming technology is in operation in several industrial plants worldwide.

Licensor: Haldor Topsøe A/S

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