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在大中型合成氨装置中,进入一段转化炉的水蒸汽与原料气之配比(简记为S/G)是一项重要的工艺指标,但实现该指标具有矛盾性:从避免触媒管管压降过大,防止触媒承受过大压碎力,保证原料气有充分的反应时间,节省蒸汽消耗的角度出发,要求S/G较低,从防止触媒结碳导致毁坏角度
In large and medium-sized ammonia plants, the ratio of water vapor to feed gas (abbreviated as S / G) entering the first-stage reformer is an important process indicator. However, there are contradictions in achieving this indicator: from avoiding catalyst tube pressure Drop too large, to prevent the catalyst to withstand excessive crushing force, to ensure that the feed gas has a sufficient reaction time, saving steam consumption point of view, requiring S / G lower, from the catalyst to prevent carbon damage caused