文摘

分馏石油蜡的重分数不同的地质起源及其表征通过DSC和HTGC

作者(年代):Manoj Kumar Sarmah Arun Borthakur Aradhana杜塔

四个北东印度原油具有不同地质起源即DK(始新世),SL (Barail),约(Tipam)和KMC (Girujan)收集fromwells不同的位置。原油蒸馏到300 oc的大气压力。蜡从沉重的分数(3000 c +)溶剂萃取法分离使用甲基异丁基甲酮(MIBK)作为溶剂在不同的温度下(40-00C)。正烷烃和isoand三轮车-烷烃分离蜡分数由尿素引用方法。分离蜡和iso -和三轮车-烷烃分数然后分析了高温气相色谱(HTGC) nalkane碳没有。分布和不同的非正烷烃化合物存在于不同的蜡分数和差示扫描量热法(DSC)固液转变温度。明确differenceswere观察上述参数在不同的分数。在增加脱蜡的温度平均碳数的增加,峰值碳数和分子量的分离蜡。在所有的原油oilsmaximumwax分离温度被发现300 c。在400 c微不足道ofwaxwas。主要部分的分离蜡烷烃碳数from17-25其次是26 - 35周不等烷烃碳数。 DK, SLand JN contain significant amount of C30 and above hopanes whereas KMC contains very insignificant quantities of hopanes. The concentration of C18 isoprenoid, pristane and phytane are more in DK and JN than that of SL and KMC. The solid-liquid transition of waxes increases with increase of separation temperature of the wax. At 00C both solid-solid as well as solid-liquid transition state of wax was observed. But at higher wax separation temperature only one transition i. e. solid-liquid state was observed.