Abstract:

Under the situation of declining petroleum demand and the advent of the oil consumption peak but strong demand for chemical products, it is an inevitable trend for refining industry with serious excess capacity to transform to chemical industry. Crude oil to chemicals(COTC) technology includes crude oil steam cracking(thermal cracking), catalytic cracking(acidic catalysis), DPC basic catalytic cutting technologies(basic catalysis). This paper is the second part of the report, mainly introduces the status and development trend of catalytic cracking in COTC industrialization and on-going of research and development. The core principle and main characteristics of catalytic cracking technology following the carboncation reaction mechanism are analyzed, and the research and development and industrial application of DPC basic catalytic cutting technology following the carbanion reaction mechanism are disclosed. On the basis of this, suggestions on the classification of COTC technologies are put forward, and the respective and mutual integrative development of COTC technologies of steam cracking, catalytic crackingand DPC basic catalytic cutting technology are pro-spected.

Key words: crude oil to chemicals(COTC), crude oil steam cracking technology, catalytic cracking technology, DPC basic catalytic cutting technology, free radical reaction mechanism, carbocation reaction mechanism, carbanion reaction mechanism, integrative development

摘要：

在石油需求下降、油品消费峰值来临但化工品需求旺盛的大格局下，产能已经严重过剩的炼油产业向化工转型已是必然趋势。原油直接制化学品(COTC)技术包括原油蒸汽裂解(热裂化)、催化裂解(酸催化)、DPC碱催化(碱催化)等技术。本文为报告的第二部分，重点介绍COTC已经工业化和研发中的酸催化技术的现状、发展趋势，分析了遵循正碳离子反应机理的催化裂解技术的核心原理和主要特征，披露遵循负碳离子反应机理的DPC碱催化技术的研发与工业化应用简况。在此基础上提出了COTC技术归类建议，并对热裂化、酸催化和DPC碱催化3种不同机理的COTC技术各自和相互融合发展提出了技术展望。

关键词: 热裂化, 酸催化, 碱催化, 自由基机理, 正碳离子机理, 负碳离子机理, 集成融合