公开(公告)号：US20240174516A1

公开(公告)日：2024-05-30

申请号：US18520882

申请日：2023-11-28

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

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.