WO2011139181A1 PCT/RU2011/000290 RU2011000290W WO2011139181A1 WO 2011139181 A1 WO2011139181 A1 WO 2011139181A1 RU 2011000290 W RU2011000290 W RU 2011000290W WO 2011139181 A1 WO2011139181 A1 WO 2011139181A1 Authority WO WIPO (PCT) Prior art keywords coal fuel gasifier gas water Prior art date Application number PCT/RU2011/000290 Other …