The mechanism and cause of the formation of the fouling deposit in the feed heat exchanger of the hydrocracking unit in Shengli Refinery were proposed after the analysis of the deposit.

通过对进料换热器垢物的实验分析，提出了蜡油加氢裂化装置进料换热器的积垢机理、腐蚀原因及其防垢措施。

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It verifies the membrane fouling is mainly caused by deposit on membrane surface to scan the electric mirror photo.

扫描电镜照片也证实了膜污染主要是膜面沉积层引起的。

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New indices for slagging and fouling are proposed by taking into account the effects of both the chemical composition of thecoal ash and the combustion conditions on the ash deposit.

矿物质是引起灰沉积的根本原因，本文主要通过对矿物元素在炉内的迁移和沉积行为的研究，来揭示沾污结渣机理。

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