Qualitative and Quantity analysis of scale samples from cracking gas compressors

Abstract

This paper explores the joint use of qualitative and semi-quantitative equipment such as C, H, N element analyzers, x-fluorescence spectrometers, Inductively coupled plasma atomic emission spectrometers (ICP) and gas chromatography-mass spectrometry (gc-ms), the scale sample of cracking gas compressor was analyzed qualitatively and comprehensively. C and H (91.77%) are the main elements in the scale sample of the first stage outlet pipeline of cracking gas compressor, the scaling may be caused by the polymerization of unsaturated hydrocarbons and the coking of macromolecular aromatics. The scale sample of the heat exchanger contains a large amount of inorganic components and the ash content reaches 52.51%, there are also deposits of sodium salts, silicates and sulphates to form scale.