The article briefs the recent developments in foreign refining industry, including refining capacity, refined product quality trends, and the main refining processes.
简要介绍世界炼油工业最新进展，包括炼油能力、油品质量趋势及主要生产工艺。
Refinery gas is mostly methane and hydrogen produced as a by-product in the many refining processes.
气是许多炼油过程中产生的副产品，主要是甲烷和氢气。
This paper reviews the main achievements and conclusions in research of coal chemical structure and characteristics in solvent refining processes in the world.
本文简要介绍了国内外对煤的化学结构，及其在溶剂精炼工艺中的特性研究的主要成果和结论。
It is suggested to take comprehensive measures on the aspects of material selection, refining processes, corrosion prevention, and equipment design and manufacture.
提出需要从合理选材、加工工艺、工艺防腐、设备设计及制造等方面采取综合预防措施。
By means of comparison for different naphthalene refining processes both at home and abroad, the principle of the selection of naphthalene refining processes is pointed out.
通过对国内外多种精萘生产工艺的比较，指出了选择精萘工艺的原则。
By means of comparison for different naphthalene refining processes both at home and abroad, the principle of the selection of naphthalene refining processes is pointed out.
通过对国内外多种精萘生产工艺的比较，指出了选择精萘工艺的原则。
应用推荐