I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator Briefs
Ethylene dichloride Recently, Chemetry (Moss Landing, Calif.; www.chemetrycorp.com) and Braskem…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More

Comment Processing & Handling

Making CO-rich syngas while avoiding carbon formation

By Gerald Ondrey |

Haldor Topsoe A/S (Lyngby, Denmark; www.topsoe.com) has developed a new technology, called ReShift, that can utilize a significant amount of CO2 for making synthesis gas (syngas; H2 + CO) without the traditional challenge of carbon formation. “CO2 addition in HyCO plants typically required a high steam-to-carbon (S/C) ratio to prevent carbon formation in the reformer,” says Peter Mølgaard Mortensen, principal scientist. “However, operating with a high S/C ratio is neither optimal for production of CO-rich syngas, nor energy efficient,” he says. With ReShift technology (flowsheet), the CO2 is added downstream of the steam methane reformer (SMR), enabling the reformer to operate at lower S/C ratios. The CO2 is heated (above 600°C) and added to the hot reformer effluent before entering an Adiabatic Post Converter (APOC). There, the mixed syngas and CO2 are converted over a nickel-based catalyst (R-100 ReShift) into a CO-rich gas. For example, a syngas with a H2-to-CO ratio of 2.5 leaving a SMR can be shifted to 1.0 after the APOC. Practically any H2-to-CO ratio can be produced with this approach. For new plants, ReShift technology can be included in the design, which leads to a 30% reduction in the size of the primary reformer.…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
The influence of IIoT in the dewatering process step of pigment production
The Big 6 level measurement technologies, where to use them and why
Top five technologies for drying in chemical applications
Crude distillation unit (CDU) optimization
Upstream Oil & Gas: Automation intelligence from wellhead to distribution

View More