Application of coal water slurry mass fraction improvement technology in Xinneng Energy Company
ZHANG Shengju
HE Guofeng
DUAN Qingbing
Abstract：To improve mass fraction of gasification coal water slurry ( CWS) and reduce production cost,an advanced process which adopted low-rank coal to prepare high mass fraction CWS was introduced by Xinneng Energy Company.The quality of CWS and each gasification index before and after transformation were analyzed.The influence of CWS mass fraction on specific coal and oxygen utilization, volume fraction of effective synthesis gas and methanol yield was studied.After transformation,the mass fraction of CWS increased from 59.11%to 61.36%.The handing capacity of each rod mill increased from 65 t/h to 78 t/h,specific coal and oxygen utilization decreased to 595.2 g/m3 and 384.0 dm3/m3 from 602.5 g/m3 and 392.0 dm3/m3 respectively.The effective synthesis gas was raised from 81.78% to 82.86%.The crude methanol production increased by 47.3 m3 every day.
Keywords：coal water slurry mass fractionspecific coal consumptionspecific oxygen consumptioneffective synthesis gasmethanol
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 12-14,19 )