RU98119957A - METHOD FOR PRODUCING SYNTHESIS GAS FROM REACTIVE GAS MIXTURE, METHOD FOR PRODUCING SECOND SYNTHESIS GAS, METHOD FOR PRODUCING CHEMICAL PRODUCT USING SYNTHESIS GAS AND USING USING GAS-USED - Google Patents

Claims (21)

1. A method of producing synthesis gas from a reaction gas mixture containing methane, oxygen and, optionally, steam and / or carbon dioxide, comprising partial oxidation of methane by bringing the reacting gas mixture at a temperature in the range of 100 - 950 ° C and at a pressure of up to 150 bar in contact with the first solid catalyst that initiates the reaction, and carrying out the reaction essentially under adiabatic conditions to produce synthesis gas, the catalyst being prepared by a method comprising uniformly mixing a Feitknecht compound having a common ph formula
_{^{Me x 2+ + Me y 3+ +}} (OH) 2x + 3y + 2z (A 2-) z · nH ₂ O,
where Me ²⁺ is essentially completely Ni ²⁺ , Me ³⁺ is essentially completely Al ³⁺ or essentially Al ³⁺ and Cr ³⁺ , A ₂ is either the only divalent anion or two monovalent anions, x / y is between 1.5 / 1 and 4/1, z / (x + y) is in the range of 0.05-0.2, and n / (x + y) is in the range of 0.25-1.0,
with unbaked aluminosilicate mineral clay and, at the same time and / or subsequently, but before firing, with at least one stabilizing additive to reduce the loss of silicone-containing varieties containing a compound of an alkaline earth and / or rare earth metal, and, optionally, an alkali metal compound, and then firing the resulting mixture and reducing the catalyst substance to activate the catalyst.  2. The method according to claim 1, characterized in that the obtained gas synthesis is at a temperature in the range of 500 - 1000 ° C and at a pressure in the range of 1 - 40 bar.  3. The method according to claim 1, characterized in that the obtained gas synthesis is at a temperature in the range of 700 - 1000 ° C and at a pressure in the range of 25 - 100 bar.  4. A method of producing a second synthesis gas at a relatively high temperature and pressure, comprising using as a feed gas the first synthesis gas obtained by the method according to claim 3, containing carbon monoxide, carbon dioxide, hydrogen, steam and unreacted methane, and not subjected to the compression stage following its production includes the addition of oxygen to the first synthesis gas and partial oxidation of the unreacted methane, passing a reactive mixture of the first synthesis gas and oxygen at a temperature in the range of 600 ° C up to 900 ° C and at a pressure in the range from 25 to 100 bar through a solid catalyst, and additional partial oxidation is carried out under essentially adiabatic conditions to obtain a second synthesis gas at a relatively high temperature and pressure.  5. The method according to p. 4, characterized in that the second synthesis gas, which is obtained by this method, is at a temperature in the range of 900 - 1150 ° C.  6. The method according to p. 5, characterized in that the temperature of the second synthesis gas obtained by this method is in the range of 1000 - 1100 ° C.  7. The method according to any one of paragraphs. 3-6, characterized in that the molar ratio of hydrogen to carbon monoxide in the second synthesis gas, which is obtained by this method, is 0.25: 1 - 8: 1.  8. The method according to any one of the preceding paragraphs, characterized in that the reacting gas mixture has a temperature in the range of 150-500 ° C when it is brought into contact with the first solid catalyst.  9. The method according to p. 8, characterized in that the reacting gas mixture has a temperature in the range of 250 - 360 ° C, when it is brought into contact with the first solid catalyst.  10. The method according to any one of the preceding paragraphs, characterized in that the reacting gas mixture is brought into contact with the first solid catalyst at a temperature not lower than 200 ° C below the self-ignition temperature of the reacting gas mixture.  11. The method according to any one of the preceding paragraphs, characterized in that the reacting gas mixture, which is brought into contact with the first solid catalyst, has a molar ratio of steam to methane of 0.0 to 6.0, the molar ratio of carbon dioxide to methane is 0 to 1 , 2, and the molar ratio of methane to oxygen is 0.1 - 0.75.  12. The method according to any one of the preceding paragraphs, characterized in that the first solid catalyst contains a cementitious binder.  13. The method according to p. 12, characterized in that the cementitious binder is a cementitious binder with a high content of aluminum oxide.  14. The method according to p. 13, characterized in that the first solid catalyst is essentially the same as "catalyst 1" in reduced form, which is described above with reference to examples.  15. The method according to any one of paragraphs. 1-11, characterized in that the mineral clay is a phyllosilicate with a layered structure and / or has a pseudo-layered structure.  16. The method according to clause 15, wherein the mineral clay with a layered structure is smectite.  17. The method according to p. 16, characterized in that the smectite is bentonite.  18. The method according to p. 17, wherein the first solid catalyst is essentially the same as "catalyst 2" in reduced form, as described above with reference to examples.  19. A method of obtaining a chemical product using synthesis gas using the method according to any one of the preceding paragraphs. 20. A method of producing a chemical product using a second synthesis gas obtained by a) producing a first synthesis gas from a reacting gas mixture containing methane, oxygen and optionally steam and / or carbon dioxide, with a temperature of the obtained first synthesis gas within 700 - 100 ° C and a pressure in the range of 25 - 100 bar and includes the partial oxidation of methane by conducting a reacting gas mixture at a temperature in the range of 100 - 950 ° C and at a pressure of up to 150 bar in contact with the first solid catalyst that initiates the reaction, and conducting react ii substantially under adiabatic conditions to produce a first synthesis gas, wherein the catalyst is prepared by a method comprising mixing a uniform Feitknecht-compound having the general formula
_{^{Me x 2+ Me y 3+ (OH}} ) 2x + 3y + 2z (A 2-) z · nH ₂ O,
where Me ²⁺ is essentially completely Ni ²⁺ , Me ³⁺ is essentially completely Al ³⁺ or essentially Al ³⁺ and Cr ³⁺ , A ^2- is the only divalent anion or two monovalent anions, x / y is between 1.5 / 1 and 4/1, z / (x + y) is in the range of 0.05-0.2 and n / (x + y) is in the range of 0.25 - 1.0
with unbaked aluminosilicate mineral clay and at the same time and / or subsequently, but before firing, with at least one stabilizing additive to reduce the loss of silicone-containing species containing an alkaline earth and / or rare earth metal compound and optionally an alkali metal compound and then firing the resulting mixture and reducing the catalyst substance to activate the catalyst, and then c) producing a second synthesis gas using the first synthesis gas as a feed gas, The second one contains carbon monoxide, carbon dioxide, hydrogen, steam and unreacted methane and is not subjected to a compression stage after its production, contains the addition of oxygen to the first synthesis gas and causes partial oxidation of the unreacted methane, passing the reaction mixture of the first synthesis gas and oxygen at at temperatures between 600 and 900 ° C and at pressures between 25 and 100 bar through a solid catalyst and further partial oxidation under essentially adiabatic conditions to produce a second synthesis gas with respect to high temperature and pressure; however, the obtained second synthesis gas is not subjected to compression after its production and before the reaction to obtain a chemical product.  21. The synthesis gas obtained by the method according to any one of paragraphs. 1-18.