【摘要】 采用SRNA-4非晶态合金催化剂对双环戊二烯(DCPD)进行了加氢反应考察,研究了搅拌速度、温度、压力和催化剂浓度各条件对双环戊二烯加氢反应的影响。结果表明DCPD加氢反应为连串反应,中间产物主要为9,10-二氢双环戊二烯(9,10-DHDCPD)和少量1,2-二氢双环戊二烯(1,2-DHDCPD);DCPD易于加氢生成中间产物9,10-DHDCPD,其继续加氢为四氢双环戊二烯(endo-THDCPD)需要较为剧烈的条件。DCPD加氢过程选用两段法,第一段为温度110℃,第二段为130℃,压力均为1.5MPa,催化剂浓度1.18%。非晶态合金(催化剂)对DCPD的加氢反应活性明显高于RaneyNi,可进行1、2位加氢反应生成1,2-DHDCPD,并且催化剂用量少,反应温度和反应压力低,反应时间短,生成副产物少。更多还原

【Abstract】 Liquid-phase hydrogenation of dicyclopentadiene (DCPD) to form tertrahydrodicyclopentadiene (endo-THDCPD) was investigated by using SRNA-4 amorphous catalyst under different reaction conditions including the agitation speed, reaction temperature, pressure and the amount of catalyst used. It is found that the hydrogenation of DCPD is a consecutive reaction, during which 9,10- dihydrodicyclopentadience (9,10- DHDCPD) is the main intermediate and 1,2- dihydrodicyclopentadience (1,2- DHDCPD) is the minor one. The hydrogenation of DCPD to form 9,10- DHDCPD could be conducted under a mild condition, but the more severe condition is needed for hydrogenating 9,10- DHDCPD to form endo-THDCPD. The hydrogenation of DCPD to form endo-THDCPD should be carried out by two steps, the temperature of 110℃ is used for the first step and 130℃ for the second step, and the pressure of 1.5MPa, catalyst amount of 1.18%(wt) are used for both two steps. The SRNA-4 amorphous catalyst exhibits superior in hydrogenation activity to Raney Ni catalyst. When the SRNA-4 amorphous catalyst is used, the intermediate 1,2- DHDCPD could be produced during hydrogenation of DCPD, the reaction temperature and pressure can be lower, the catalyst amount used and reaction time can be lesser and the amount of by-products can also be fewer than those when the Raney Ni catalyst is used.更多还原