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为深入研究胶质、沥青质对原油乳状液稳定性的影响 ,从孤岛渣油中分离出胶质和沥青质 ,用滴体积法、Langmuir膜天平、单滴寿命法、瓶试法等研究了它们的水 -苯界面活性、Langmuir膜压、阻止水 -苯界面上的水滴向水相融并的能力及稳定水 -苯乳状液的能力。结果表明 ,胶质比沥青质具有更强的水 -苯界面活性 ;沥青质比胶质具有更大的 Langmuir膜压 ;沥青质阻止水 -苯界面上的水滴向水相融并的能力远大于胶质 ;沥青质是水 -苯乳状液优良的稳定剂 ,胶质具有一定的使由于沥青质而稳定的乳状液脱稳的能力
In order to study the effects of colloids and asphaltenes on the stability of crude oil emulsions, the gelatin and asphaltene were isolated from gilt oil. The drop volume method, Langmuir membrane balance, single-drop life method and bottle test were used Their water-benzene interfacial activity, Langmuir membrane pressure, the ability to inhibit water droplets on the water-benzene interface from coalescing with the water phase, and the ability to stabilize water-benzene emulsions. The results showed that glial had stronger water-benzene interfacial activity than asphaltene, asphaltene had larger Langmuir membrane pressure than colloid, and asphaltene prevented the water droplets on the water-benzene interface from coalescing into the water phase more than Asphaltenes are water-benzene emulsions Excellent stabilizers, with the ability to destabilize emulsions that are stable with asphaltenes