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烃类气体依次与氧化锌和金属镍接触 ,可得到硫含量极低的气体。这样就可将流化床合成气发生器中进料天然气的总硫含量降到少于 0 .1ｐｐｍ ,并提高了合成气产率。合成气发生器下游的氧化锌保护床将合成气中的总硫含量减到低于 10ｖｐｐｂ ,甚至低于 5ｖｐｐｂ。硫含量极低的合
Hydrocarbon gas followed by contact with zinc oxide and nickel metal, can be very low sulfur gas. This reduces the total sulfur content of the feed gas in the fluidized bed syngas generator to less than 0.1 ppm and increases the syngas yield. The zinc oxide guard bed downstream of the syngas generator reduces the total sulfur content in the syngas to less than 10 vppb and even less than 5 vppb. Very low sulfur content