轻油蒸汽预转化制取富甲烷气

本文通过对烃类蒸汽预转化反应机理的分析, 假定了反应机理, 并进行催化剂设计, 筛选出镍系大孔容、高比表面催化剂。以轻油为原料进行了水碳化、空速、速度、压力等工艺条件考察,确定了制取富甲烷气的工艺参数, 使转化气中甲烷含量达到65%以上, 转化率100%。试验结果验证了所假定的反应机理。这项技术将在合成氨、工业制氢、拨基合成、城市煤气等领域得到广泛应用。

Pre-reforming of Light Oil to Make Methane-enriched Gas

Based on a look into the reaction mechanism for hydrocarbon steam pre-reforming, a reaction mechanism was assumed and the catalyst designed. As a result, a nickel catalyst with high pore volume andsurface area was screened out. An investigation of such process conditions as S/C ratio, space velocity,temperature and pressure was done with light oil as feedstocks, and the process parameters for preparation of methane--enriched gas chosen. The methane content in reformed gas reached over 65% with aconversion of 100%. The experimental results proved the mechanism assumed. This technology will findwide use in ammonia and hydrogen production, carbonyl synthesis, town gas production and such like.