(5) Synthesis of natural gas, gasoline, and diesel oilnCO + (2n + 1)H2= C2Hzn+2 + nH2OCO + H2O - CO2 + H2Fischer-Tropsch synthesis: iron or cobalt based catalyst200-240℃,2.5MPa
(5) Synthesis of natural gas, gasoline, and diesel oil Fischer-Tropsch synthesis: iron or cobalt based catalyst 200-240℃, 2.5MPa
2.Newuseof syngasapplication(1)Low carbon alkenes such as ethene was directly synthesized2C0 + 4H2 -- CH4 +2H20(2)Syngastransforming intohydrocarbons via methanolH2OH20C2~C4烯烃nCH3OCH32nCH3OH
2．New use of syngas application (1) Low carbon alkenes such as ethene was directly synthesized (2) Syngas transforming into hydrocarbons via methanol
(3）Ethenepreparedbymethanolhomologation（同系化）CH3OH + CO + 2H2 =- CH3CH2OH + H2CCH3CH20H = C2H4十H20(4)Lowcarbon alcohol synthesis(5)Glycolsynthesis2CH30H + C0 + 1/202 - (C00CH3)2 )2 +H20(CO0CH3)2 + 4H2 → (CH2OH)2 + 2CH30OH()Carbonylation products from syngas and alkene derivatives
(3) Ethene prepared by methanol homologation(同系化) (4) Low carbon alcohol synthesis (5) Glycol synthesis 2CH3OH + CO + 1/2O2 → CO(OCH3)2 + H2O (COOCH3)2 + 4H2 → (CH2OH)2 + 2CH3OH (6) Carbonylation products from syngas and alkene derivatives CH3CH2OH ＝ C2H4十H2O (COOCH3)2
5.2 Syngas prepared by coalTechnological principle of coal gasification process1.Basic reactions of coalgasificationBasic reactionsoccurring during coal gasification1C+-0,=COAH208 123kJI mol2AH20e - 406kJ I mo!C+O, = CO2AHi0131kJ / molC+H,O≤CO+H2AH20890.3kJ/ molC+2H,O→CO2+2H2AH20C+CO,=2CO172.6kJ/molAH20e -74.9kJ I molC+2H2 →CH4
5.2 Syngas prepared by coal 一、Technological principle of coal gasification process 1．Basic reactions of coal gasification Basic reactions occurring during coal gasification
2.Reaction conditionsofcoalgasification(1)Operationtemperature isabove1100℃(2)Pressure is 2.5-3.2MPa(3) The ratio of H2O toO2 is determined according togasificationmethod of coal
2. Reaction conditions of coal gasification (1) Operation temperature is above 1100 ℃ (2) Pressure is 2.5-3.2MPa (3) The ratio of H2O to O2 is determined according to gasification method of coal