Wu Yan

TL;DR: In this paper, a method of extracting phenolic compounds from coal coal or coal tar was proposed, which avoids the usage of soda acid, exerts no influence on subsequent treating processes, and guarantees high recovery rate and purity of phenols.

TL;DR: In this article, a method for directly liquefying coals with a function of maximizing utilization of liquefied residues is proposed, which has important economic and social significances, and can widely be applied to the field of coal direct liquefaction.

TL;DR: In this article, a bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst and a preparation method for its use in coal tar liquefaction is described.

TL;DR: In this article, a high-pressure high-temperature liquid viscosity measuring device and method is presented, which consists of a driving motor, a torque sensor, an induced magnetism barrel, a rotating shaft and a stirring paddle.

TL;DR: In this article, the authors proposed a method and an apparatus for producing fuel oil by hydrocracking, which comprises the following steps: distilling raw oil to obtain a heavy oil fraction; preparing a catalyst oil slurry; hydrocracked the catalyst oil silt with a residual heavy oil fractions, the hydrogenation heavy odour fraction after removing a catalyst and hydro-finishing tail oil fraction which are taken as raw materials; separating the products after hydro-cracking to obtaining a top outlet oil and a bottom outlet oil; performing solid-liquid separation on a part of bottom