Hydrogenolysis Products of Benzyl Phenyl Ether as a Coal Model Compound Using Solvents Having Different Carbon Aromaticity

以二环化合物（十氢化萘、四氢化萘和萘）为原料制备不同碳芳度值的溶剂，以合成黄铁矿为催化剂，对苯并苯基醚（BPE）进行了反应，讨论了分解产物的产率。反应在50 ml的高压釜中进行，反应温度为673 ~ 743 K，初始氢或氮压力为3 Mpa，反应时间为30 min。基于BPE，所有反应的转化率均为100%。在以十氢化萘为溶剂的反应中，分解产物以甲苯、苯酚和苯为最丰富的成分，而在以四氢化萘或萘为溶剂的反应中，由于热裂解生成的苯自由基与溶剂反应生成四氢化萘或苯，分解产物收率降低。在十氢化萘与四氢化萘混合或十氢化萘与萘混合制备等fa值溶剂时，分解产物产率差异不大。而十氢化萘与萘的混合溶剂反应的分解产物收率略高于十氢化萘与四氢化萘的混合溶剂反应。结果表明，采用特定fa值的混合溶剂，可提高分解产物收率。在今后的工作中，应详细研究反应前后溶剂的变化，以阐明氢从溶剂到产物的转移。

Benzyl phenyl ether (BPE) was reacted to discuss the yields of decomposed products using solvents having various values of carbon aromaticities (fa) prepared from 2-rings compounds (decalin, tetralin and naphthalene) and a synthetic pyrite as catalyst. The reactions were carried out in a 50 ml autoclave at 673 K to 743 K of the reaction temperature under 3 Mpa of initial hydrogen or nitrogen pressure for 30 min.The conversions in all reactions were 100 wt% based on BPE. In the reaction using decalin as solvent, the decomposed products consisted of toluene, phenol and benzene were the most abundant constituent, In the reaction using tetralin or naphthalene as solvent, the decomposed products yield decreased because that benzyl radical produced from BPE by thermal cracking reacts with solvent to produce benzyltetralin or benzylnaphthalene. In the feactions using solvents having equal fa-value prepared by mixing decalin and tetralin, or decalin and naphthalene, the decomposed products yields were not so much different. However the decomposed product yields in the reaction using the mixed solvent of decalin and naphthalene was somewhat higher than that using the mixed solvent of decalin and tetralin.It is suggested that in the reaction using a mixed solvent having particular fa value, the decomposed product yields would increase.In future work the variations of solvents before and after reaction should be studied in detail to clarify hydrogen transfer from solvent to products.