Gasification of lignite from Polish coal mine to hydrogen-rich gas  

作　　者：Adam Smolinski Slawomir Wochna Natalia Howaniec 

机构地区：[1]Central Mining Institute,Plac Gwarkow 1,40-166 Katowice,Poland [2]PGE Górnictwo i Energetyka Konwencjonalna S.A.,Oddz.Kopalnia Wegla Brunatnego Turów,Górników Turowa 1,59-916 Bogatynia,Poland [3]Department of Energy Saving and Air Protection,Central Mining Institute,Plac Gwarkow 1,40-166 Katowice,Poland

出　　处：《International Journal of Coal Science & Technology》2022年第6期151-160,共10页国际煤炭科学技术学报（英文）

摘　　要：The efforts of the world research activities involved in clean coal technologies development focus to a considerable extent on integrated hydrogen and power generation technologies based on coal gasification.As an alternative to combustion pro-cesses,gasification offers increased efficiency,lower negative environmental impact as well as wider application range of the main product—synthesis gas—in power generation and chemical syntheses.In order to select the most optimal lignite for the purpose of gasification,it is necessary to determine coal reactivity,the key parameter characterizing how fast the fuel reacts with the gasifying medium and controlling its process ability in thermochemical conversion to energy and/or energy carriers.This paper presents the experimental results of oxygen/steam gasification of lignite coal char in a fixed bed reactor under atmospheric pressure and at the temperature of 700,800 and 900℃;the samples come from an open pit lignite mine in the southwest of Poland.The effectiveness of the gasification process was tested in terms of the total gas and hydrogen yields,gas composition,carbon conversion rate and chars reactivity.

关 键 词：Coal gasification HYDROGEN SYNGAS Clean coal technologies 

分 类 号：TD71[矿业工程—矿井通风与安全]