A method and system for comprehensive utilization of coal-based synthesis gas
A coal-based synthesis gas and synthetic natural gas technology, applied in the field of coal chemical industry, can solve problems such as single raw materials and evaluation conditions, poor product adjustment flexibility, and unstable device operation, so as to improve anti-risk ability, obvious environmental protection effect, and good economy benefit effect
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Examples
Embodiment 1
[0050] This embodiment provides a method for comprehensive utilization of coal-based synthesis gas, which uses a system in which a first-stage synthetic methanol reactor is connected to a first-stage F-T synthetic oil reactor, and its process is as follows figure 1 As shown, the method includes the following steps:
[0051] The flow rate of the purified coal-based syngas is 16Nm 3 / h, the molar composition (the sum of the contents of each component is 100%) is: CO 33.5%, H 2 54.3%, CO 2 0.9%, CH 4 11.2%, the rest is inert component N 2 and Ar;
[0052] The coal-based synthesis gas is fed into the first-stage methanol synthesis reactor to contact with the methanol synthesis catalyst for reaction. The reaction temperature is 230°C, the pressure is 2.0MPa, and the reaction space velocity is 1000h -1 , H 2 The / CO ratio is 1.6; the molar ratio of the metal elements of each component of the synthetic methanol catalyst is Cu:Zn:Ce:Al=40:25:6:29; the gas after the reaction is c...
Embodiment 2
[0055] This embodiment provides a method for comprehensive utilization of coal-based synthesis gas, which uses a system in which a reactor for synthesizing low-carbon alcohols is connected to a reactor for synthesizing natural gas. The process flow is as follows figure 2 As shown, the method includes the following steps:
[0056] The flow rate of the purified coal-based syngas is 16Nm 3 / h, the molar composition (the sum of the contents of each component is 100%) is: CO 33%, H 2 53%, CO 2 0.8%, CH 4 12.7%, the rest is inert component N 2 and Ar;
[0057] The coal-based synthesis gas is fed into the first-stage low-carbon alcohol synthesis reactor to contact with the low-carbon alcohol synthesis catalyst for reaction. The reaction temperature is 200°C, the pressure is 2.0MPa, and the reaction space velocity is 1000h -1 , H 2 The / CO ratio is 1.6; the molar ratio of the metal elements of the components of the synthetic low-carbon alcohol catalyst is Cu:Cr:K:Zn=40:15:15:30...
Embodiment 3
[0060] This embodiment provides a method for comprehensive utilization of coal-based synthesis gas, which uses a system in which a first-stage low-carbon alcohol synthesis reactor is connected to a first-stage F-T synthetic oil reactor, and a first-stage F-T synthetic oil reactor is connected to a first-stage synthetic natural gas reactor. The process flow is as follows image 3 As shown, the method includes the following steps:
[0061] The flow rate of the purified coal-based syngas is 16Nm 3 / h, the molar composition (the sum of the contents of each component is 100%) is: CO 31.2%, H 2 54.6%, CO 2 0.9%, CH 4 13.1%, the rest is inert component N 2 and Ar;
[0062] The coal-based synthesis gas is passed into the first-stage low-carbon alcohol synthesis reactor to contact with the low-carbon alcohol synthesis catalyst for reaction. The reaction temperature is 300°C, the pressure is 4.0MPa, and the reaction space velocity is 6000h -1 , H 2 The / CO ratio is 1.8; the molar ...
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Description
Claims
Application Information
- IPC
- C10G2/00; C10L3/10; B01J19/00; C07C29/157; C07C29/154; C07C31/04; C07C31/02
- CPC
- B01J19/0046; C07C29/154; C07C29/157; C10G2/332; C10G2/34; C10G2300/70; C10L3/08; C07C31/04
- Inventors
- 周红军; 余长春