重质原油是指相对密度介于0.90~1.00克/立方厘米之间的原油。一般色深,富含胶质和沥青质,汽油含量比轻质原油和中质原油少。当原油相对密度大于1.00克/立方厘米时,则为“特重原油”。重质原油中轻馏分含量低,不含蜡或含蜡很少,胶质及沥青含量高,一般在20%~50%(质量分数)之间。
近年来我国重质原油产量不断增加。
The heavy crude production in China has increased constantly in recent years.
脱盐方面的研究重点是处理重质原油和机会油。
The majority of recent desalting efforts have addressed heavy or opportunity crudes.
但是,伊朗的石油是重质原油和我们只有一个重质原油的炼油厂在我国。
But Iran's oil is heavy crude and we have only one heavy crude refinery in our country.
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