School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, UK.
Bioresour Technol. 2010 Apr;101(7):2436-42. doi: 10.1016/j.biortech.2009.10.092. Epub 2009 Nov 28.
Steam reforming of the crude glycerol by-product of a biodiesel production plant has been evaluated experimentally at atmospheric pressure, with and without in situ CO(2) sorption, in a continuous flow fixed-bed reactor between 400 degrees C and 700 degrees C. The process outputs were compared to those using pure glycerol. Thermodynamic equilibrium calculations were used to assess the effect on the steam reforming process of the main crude impurities (methanol and four fatty acid methyl esters). The crude glycerol and steam conversions and the H(2) purity reached 100%, 11% and 68%, respectively at 600 degrees C. No CH(4) was found at and above 600 degrees C. Steam reforming of crude glycerol with in situ CO(2) removal is shown to be an effective means of achieving hydrogen purity above 88% in pre-CO(2) breakthrough conditions.
在大气压下，在连续流动固定床反应器中，在 400 摄氏度至 700 摄氏度之间，对生物柴油生产厂的粗甘油副产物进行了蒸汽重整实验，分别进行了和不进行原位 CO2 吸附。将过程输出与使用纯甘油的情况进行了比较。热力学平衡计算用于评估主要粗杂质（甲醇和四种脂肪酸甲酯）对蒸汽重整过程的影响。在 600°C 时，粗甘油和蒸汽转化率以及 H2 纯度分别达到 100%、11%和 68%。在 600°C 及以上时，未发现 CH4。结果表明，在 CO2 突破前条件下，采用原位 CO2 去除的粗甘油蒸汽重整是实现 88%以上氢气纯度的有效手段。
