塔河原油中有机氯来源分析和脱除

通过对塔河稠油中氯盐的存在形态进行分析，发现其中不仅存在无机氯盐，而且存在有机氯盐，有机氯盐所占的比例在50％以上。用常规水洗脱盐的方法不能彻底脱除有机氯盐。有机氯盐在蒸馏过程中主要进入渣油中。开发了有针对性的脱氯助剂H，考察了脱氯助剂H对塔河原油的脱氯效果和对破乳过程的影响。结果表明，脱氯助剂H与破乳剂联合使用可以将脱后油的总氯质量分数降低到10 ?g/g以下，盐（NaCl）质量浓度降低到3 mg/L以下，并对破乳过程无不利影响。

SOURCE AND REMOVAL OF ORGANIC CHLORIDE IN TAHE CRUDE OIL

The existing forms of chloride salt in Tahe crude oil and their sources were analyzed and an assistant agent H for organic chloride removal was developed and tested. It is found that there are two forms of chloride salts in Tahe crude oil: inorganic and organic chloride and that the content of organic chloride is above 50％. The organic chloride cannot be completely removed by traditional method and mainly goes into residual oil fraction during distillation. The test results show that the agent H with demulsifier together can decrease the chloride content in treated oil to less than 10 ?g/g and salt content to less than 3 mg NaCl/L. Meanwhile it has little disadvantageous effect on demulsification.