Abstract: It introduces the design, operation and assessment of the first 500 TPY light hydrocarbon aromatization unit in a refinery adopting aromatics type moving bed aromatization technology. The basic principle of light hydrocarbon aromatization reaction and the process and engineering characteristics of the aromatization unit are introduced. Through the operation and assessment of the unit,it shows that the technology can convert light hydrocarbon resources and relatively surplus LPG into high value-added aromatics products such as BTX. The aromatics contents of table gasoline is more than 95%,and the total aromatics yield is more than 48%. The structure of feedstock and products can also be flexibly adjusted according to the market demand, which significantly improves the adaptability and market competitiveness of the technology, and opens up a new technical way for the efficient utilization of light hydrocarbon resources.

Key words: aromatic hydrocarbon aromatization, moving bed, light hydrocarbon aromatization, catalyst, dust, regenerative coking

摘要： 介绍了轻烃芳构化反应的基本原理,首套采用芳烃型移动床轻烃芳构化技术的某炼油厂新建500 kt/a轻烃芳构化装置的设计、运行及考核情况,以及该芳构化装置的工艺及工程特点。结合该装置运行及考核情况,表明该技术可以将轻烃资源和相对过剩的液化石油气转化为具有高附加值的苯、甲苯和二甲苯(BTX)等芳烃产品,稳定汽油中芳烃含量超过95%,总芳烃产率达到48％以上。原料和产品结构还可根据市场需求灵活调节,显著提高了该技术的适应性和市场竞争力,为轻烃资源高效利用开辟了一条新的技术途径。

关键词: 芳烃, 移动床, 轻烃芳构化, 催化剂, 粉尘, 再生烧焦