Hydrogen For Ammonia And Syngas Plants
Hydrogen Plants for Refineries
Hydrogen can be recovered separately, of course, from the syngas mixture and purified through the PSA process to yield a high-purity hydrogen product stream for use in refinery hydro processing units or petrochemical plants. In fact, KBR has worked on the design and/or construction of over 34 low-energy, low-cost refinery hydrogen plants using proprietary KBR natural gas reforming technologies. The innovative, cost-effective synthesis gas (syngas) production technologies and hydrogen production technologies KBR offers include: the KBR top-fired steam methane reformer (SMR) and the KBR Reforming Exchanger System (KRES™).
KRES for Refinery Hydrogen Plant Revamp
KBR KRES reforming exchanger technology can be used to revamp an existing steam methane reforming (SMR) hydrogen unit in a refinery to increase hydrogen production capacity by up to 35%. The KRES add-on unit can be erected in a relatively small plot space of 15'x15' and piped in parallel to the refinery hydrogen plant SMR while the existing SMR unit continues to operate. Piping tie-ins to the existing hydrogen plant can then be made during a relatively short turnaround. Some process heat exchangers will likely need to be supplemented with parallel units or replaced during the turnaround; this will be evaluated during the KRES revamp study for the refinery hydrogen plant.
Values & Benefits
A KRES for refinery hydrogen plant revamp can be achieved for less cost and while reducing both steam export (if desired) and NOx & CO2 emissions versus adding tubes to the existing SMR furnace or building a secondary SMR. Refineries typically do not have available plot space to erect a second SMR and the conventional revamp options of completely retubing or expanding the existing SMR furnace can require a lengthy turnaround and incur significant lost production. If you require less than a 35% expansion of existing refinery hydrogen production capacity, you should contact KBR to discuss a KRES for refinery hydrogen plant revamp.