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公开(公告)号:US20240174516A1
公开(公告)日:2024-05-30
申请号:US18520882
申请日:2023-11-28
Inventor: Everett J. O'NEAL , David C. DANKWORTH , Sarah E. FEICHT
IPC: C01B3/04
CPC classification number: C01B3/047 , C01B2203/1058 , C01B2203/1076 , C01B2203/1205
Abstract: Systems and methods are provided for performing ammonia cracking as the endothermic reaction step of a reaction cycle in a cyclic reaction environment, such as a reverse flow reaction environment. In such aspects, heat for the endothermic reaction can be provided by direct heating during a regeneration step. Optionally, the fuel for the regeneration step can correspond to additional ammonia and/or can include hydrogen generated during the ammonia cracking reaction step. Optionally, a selective catalytic reduction (SCR) zone can be included as part of the reactor, to reduce or minimize the amount of nitrogen oxides in the regeneration effluent from the reactor.
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公开(公告)号:US20240140792A1
公开(公告)日:2024-05-02
申请号:US18499472
申请日:2023-11-01
Inventor: Everett J. O'NEAL , David C. Dankworth , Lu Han , Sarah E. Feicht , Anastasios I. Skoulidas
CPC classification number: C01B3/26 , B01J19/0066 , B01J19/2485 , C01B2203/0238 , C01B2203/06 , C01B2203/1235
Abstract: Systems and methods are provided for performing both reforming and partial oxidation as part of the reaction step of a reaction cycle in a cyclic reaction environment such as a reverse flow reaction environment, where heat is provided by direct heating during a regeneration step. In some aspects, performing a combination of reforming and partial oxidation can allow for higher conversion of hydrocarbons than reforming alone while reducing or minimizing the peak temperatures within the cyclic reaction environment. In some aspects, performing both reforming and partial oxidation can also allow for an improved molar ratio of H2 to CO in the resulting effluent from the conversion reaction (relative to partial oxidation) while still maintaining high total conversion.
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公开(公告)号:US20230372860A1
公开(公告)日:2023-11-23
申请号:US17748021
申请日:2022-05-18
Inventor: Everett J. O'NEAL
CPC classification number: B01D53/0438 , B01J20/28042 , B01J20/28016 , B01J20/3483 , B01D2259/4009 , B01D2257/504 , B01D2253/342 , B01D2259/404
Abstract: Systems and methods are provided for performing CO2 sorption and desorption using a sorbent structure with an integrated heat pump. The integrated heat pump can allow at least a portion of the heat generated during sorption to be recovered by forming steam from water. The steam raised during the sorption process can then be compressed and optionally heated to raise the temperature of the steam. The compressed and optionally heated steam can then be used as at least a portion of the steam for desorption of CO2 in the same sorbent bed or a different sorbent bed. By recovering the heat of sorption to raise steam, substantial energy savings can be achieved relative to a conventional process.
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