A Novel Photocatalytic Process for Electrification of Hydrogen Production By Steam Methane Reforming.
- Type: Conference Presentation
- Conference Type: AIChE Annual Meeting
- Presentation Date: November 9, 2021
- Duration: 20 minutes
- Skill Level: Intermediate
- PDHs: 0.50
This presentation will introduce an alternative process for electrifying the production of hydrogen via SMR while eliminating CO2 emissions. The heart of this process is a novel photocatalytic reactor that uses LEDâs to drive the reforming reaction in the presence of a plasmonic nanoparticle photocatalyst. A major benefit over the traditional design is the absence of any greenhouse emissions that originate from the combustion of natural gas; the only energy input required is electricity. As with a traditional process, the product of SMR is an admix of carbon oxides (both CO and CO2) and hydrogen along with leftover reactants. A water gas shift unit provided at the downstream of reformer converts CO to CO2 and hydrogen. An inhouse-designed pressure swing adsorption (PSA) system can produce fuel-cell grade hydrogen as a raffinate. The carbon dioxide from PSA extract can be separated out of the unreacted methane using a metal organic framework matrix (or similar). This CO2 is then further reacted with a split stream of the PSA raffinate (i.e., hydrogen) to produce methanol (a value-added chemical). Leftover methane is recycled back. Such a cascaded operation eliminates CO2 emissions.
- Green Hydrogen, A Guide to Policy Making, International Renewable Energy Policy, 2020.
- Hydrogen, Fuel and Technology, IEA, August 2020
|AIChE Member Credits||0.5|
|AIChE Graduate Student Members||Free|
|AIChE Undergraduate Student Members||Free|