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US 11,618,003 B2Granted
Diesel reforming apparatus having a heat exchanger for higher efficiency steam reforming for solid oxide fuel cells (SOFC)
OwnerSai P. Katikaneni, Joongmyeon Bae +3inventors
InventorsSai P. Katikaneni, Joongmyeon Bae, Jiwoo Oh, Minseok Bae, Dongyeon Kim
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Abstract
Embodiments of the present disclosure are directed to a diesel reformer system comprising: a diesel autothermal reforming unit; a post-reforming unit disposed downstream of the autothermal reforming unit; a heat exchanger disposed downstream of the post-reforming unit; and a desulfurization unit disposed downstream of the heat exchanger.
Claims12
A method of diesel reforming comprising:
- introducing one or more feed streams to a diesel autothermal reforming unit to at least partially convert the one or more feed streams to a diesel reformate, wherein the one or more feed streams comprising diesel fuel, air, and steam, and wherein the one or more feed streams comprise:
- a Steam to Carbon Ratio (SCR) greater than 1, wherein SCR=Steam feed/total Carbon in diesel fuel feed, and
- an Oxygen to Carbon Ratio (OCR) less than 1, wherein OCR=O2 input from air feed/total Carbon in diesel fuel feed;
- introducing the diesel reformate to a post-reforming unit disposed downstream of the diesel autothermal reforming unit, wherein the post-reforming unit selectively decomposes low carbon (C2-C5) hydrocarbons in the diesel reformate into hydrogen and methane;
- and
- passing post-reforming unit diesel reformate through a heat exchanger disposed downstream of the post-reforming unit and into a desulfurization unit disposed downstream of the heat exchanger, wherein the desulfurization unit removes sulfur compounds from the post-reforming unit diesel reformate.
3 more elements
Dependencies are inferred from the claim text.