天然气制合成氨装置退氧运行实践

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中图分类号：TQ113.2 文献标识码：B 文章编号：1004-8901（2026）01-0068-04

OxygenWithdrawalofNatural Gas-basedSynthetic Ammonia Plant

DUKun-qiao

（ChinaBlueChemicalLtd.，DongfangHainan5726oo，China）

AbstractFollowingangassubsitutioandoygenerichmentmodificatio，thethetcammoniaplntecoutereditsfiststacef pureoxygenwidraaluetlureinthireparationUnitisaraalystssodygeidraalcdie aturedropinthecondaryreformerandhdrogen-tonitrogendisproportioninthesntsiscoverterTroghsystematicdjustnts，te temperaturedelineinthesecondaryreformerwasmitigatedwhilemaintainingstableoperationunderextremelylowhydrogen-tonitrogen ratios.Key operational considerations and systemic impacts of oxygen withdrawal are summarised.

Keywords：oxygen withdrawal；oxygen-enrichedair；synthesiscoverter；hydrogen-to-nitrogenratio；secondaryreformer doi：10.3969/j.issn.1004-8901.2026.01.015

中海石油化学股份有限公司（简称“中海化学"）海南基地海洋石油富岛有限公司化肥一期（简称“化肥一期"是国内第一套大颗粒尿素装置，以南海天然气为原料，设计30万t/a合成氨、52万t/a尿素，1996年10月建成投产。（剩余5192字）