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Effects of mineral matter on products and sulfur distributions in hydropyrolysis

机译：矿物质对加氢热解产物及硫分布的影响

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摘要

The effects of the mineral matter on the product yield and sulfur distribution in hydropyrolysis and pyrolysis of Chinese Hongmiao lignite were investigated using a fixed-bed reactor. The volatile sulfur-containing gases (H_2S,COS,CH_3SH) were also analyzed as a function of pyrolysis temperature. Coal samples were treated with HCl/HF or HCl/HF and CrCl_2 solution to eliminate minerals and pyrite respectively. In hydropyrolysis, demineralized Hongmiao lignite showed lower yields of tar and water than the raw coal. Demineralization cannot only minimize the fixation effect of basic mineral matter on sulfur-containing gases, but also increase the sulfur distribution of the tar. Further, from the evolution profiles of sulfur-containing gases, it is possible to elucidate the contribution of minerals, pyrite and organic sulfur to the sulfur evolution. Pyrite may not be the only source of COS formation.
机译：利用固定床反应器研究了矿物质对红庙褐煤加氢热解过程中产物收率和硫分布的影响。还分析了挥发性含硫气体（H_2S，COS，CH_3SH）作为热解温度的函数。煤样品用HCl / HF或HCl / HF和CrCl_2溶液处理，分别去除矿物和黄铁矿。在加氢热解中，脱矿的红庙褐煤显示出的焦油和水的产率低于原煤。脱盐不仅可以使碱性矿物质对含硫气体的固定作用最小化，而且可以增加焦油中硫的分布。此外，从含硫气体的逸出曲线中，有可能阐明矿物，黄铁矿和有机硫对硫逸出的贡献。黄铁矿可能不是COS形成的唯一来源。

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