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针对大连口岸进口石脑油烯烃含量个别批次有不符合合同指标要求的情况,分析了不合格烯烃对目的产品的转化、生产加工的影响。阐述了在现生产条件下,经过多道有效工艺的预处理,可以避免因个别批次进口石脑油烯烃含量不合格而致芳烃生产装置停产。指出处理不合格石脑油中的烯烃会增加预处理装置的负荷与能耗,影响装置对进口石脑油原料的有效处理能力。要求在进口石脑油的检验中,应严格限制进口石脑油原料中的烯烃含量,严把质量检验关,减少不合格石脑油对生产的影响。
According to the situation that some batches of olefins imported into Dalian port do not meet the requirements of the contract index, the effects of substandard olefins on the conversion of the target products and the production and processing are analyzed. The article elaborates that under the current production conditions, the multi-channel pretreatment of effective process can avoid the discontinuation of the aromatic hydrocarbon production plant due to the unqualified naphtha olefin content of individual batches. Pointed out that the processing of unqualified naphtha olefin will increase the load and energy consumption of pretreatment plant, affecting the device to effectively handle the import of naphtha feedstock. Requirements in the inspection of imported naphtha, naphtha imports of raw materials should be strictly limited to the content of olefins, strict quality inspection, reduce the impact of substandard naphtha production.