Topic
Carbochemistry
About: Carbochemistry is a research topic. Over the lifetime, 1010 publications have been published within this topic receiving 16626 citations.
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TL;DR: In this paper, the effect of homemade iron-based catalyst on quick coal liquefaction at high temperature in a micro autoclave for the first time was studied. But the authors did not consider the impact of catalysts on the performance of coal direct liquidation.
Abstract: Quick coal liquefaction at high temperature is a novel method of coal direct liquefaction, which is based on the initial highly reactive characteristics at the beginning of coal liquefaction reaction and the different chemical bond energy in molecular structure of coal, so the essence of coal liquefaction can be essentially revealed by the method. The catalyst plays a key role in the coal liquefaction process. Taking Yanzhou coal as a case, this article studies the effect of homemade iron-based catalyst on quick coal liquefaction at high temperature in a micro autoclave for the first time.
7 citations
TL;DR: Nickel acetate (NiAc) was examined as a catalyst precursor for hydroliquefaction of coals in the temperature range of 310-350 °C for 1 h in a batch-autoclave with an initial H 2 pressure of 10 MPa, and with tetralin as a solvent.
7 citations
TL;DR: In this article, the authors observed the evolution of four coal coals: Pittsburgh bituminous, Illinois No. 6, Rawhide subbituminous and Texas lignite.
7 citations
TL;DR: In this paper, trifluoroperoxyacetic acid (TFPA) was used to oxidize British bituminous coals and the results were analysed using a range of physical and chemical techniques.
7 citations
01 Oct 1989-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this paper, a laboratory study on the desulfurization of coal seams with aqueous chlorine has been conducted and the coal sample was leached in an acid solution in which chlorine gas was bubbled.
Abstract: A laboratory study on the desulfurization of Sewickley seam coal with aqueous chlorine has been conducted. The coal sample was leached in an acid solution in which chlorine gas was bubbled. The parametric experimental conditions were temperature (25 ‡C, 40 ‡C, and 55 ‡C), stirring speed (230, 360, and 500 rpm), and particle size (35 to 48, 65 to 100, and 150 to 200 mesh). It has been shown that aqueous chlorine can leach more than 90 pct of coal pyrite and approximately 40 pct of organic sulfur at room temperature. The leaching rates are considered to be controlled by pore diffusion mechanisms. The leaching rates decrease slightly as the tem-perature increases. The solubility of chlorine gas that decreases as the temperature increases may be the reason for this trend. A pressurized leaching system is proposed for a future study to increase the concentration of aqueous chlorine and thus remove the sulfur more effectively.
7 citations