Experimental device and method for gas liquefaction of supercritical water-gassy coal
A technology of supercritical water and experimental equipment, applied in the process, chemical instruments and methods, and measuring devices under supercritical conditions, can solve problems such as retention, lack of research on gas-liquid conversion of gas-containing gas, and improve reaction utilization rate effect
Active Publication Date: 2021-09-07
TAIYUAN UNIV OF TECH
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Problems solved by technology
However, the research on supercritical water-coal-gas-liquid conversion is in its infancy, and the existing researches are still in the stage of gas-liquid conversion of non-adsorbed gasy coal by supercritical water, and there is a lack of research on gas-liquid conversion of gas-containing coal in supercritical water.
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Embodiment Construction
[0045] The present invention is further illustrated by the following examples, but not limited to the following examples.
[0046] Such as figure 1 As shown, a supercritical water-gas liquefaction experimental device for gas-containing coal includes a high-pressure gas supply device, a supercritical water generation device, a coal gas liquefaction device, a pressure monitoring device, and a vacuum device;
[0047] The gas supply device includes a helium cylinder 1, a gas cylinder 2, and a gas booster pump 3, wherein the helium cylinder 1 and the gas cylinder 2 are respectively connected to the gas booster pump 3 through a stainless steel high-pressure coil 4 ;
[0048] The supercritical water generating device includes a supercritical medium generating kettle 5, a muffle furnace heater 6, a satellite constant flow liquid booster pump 7, and a temperature sensor; wherein the supercritical medium generating kettle 5 is placed inside the muffle furnace heater 6 , the temperatur...
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The invention discloses a supercritical water-gas liquefaction experimental device and method of gas-containing coal. The device includes a high-pressure gas supply device, a supercritical water generating device, a coal gas liquefaction device, a pressure monitoring device, and a vacuum device; the gas supply device includes a helium gas cylinder, a gas gas cylinder, and a gas booster pump; The critical water generating device includes a supercritical medium generating tank, a muffle furnace heater, a satellite constant flow liquid booster pump, and a temperature sensor; the coal gas liquefaction device includes a coal reaction kettle, a second muffle furnace heater, a temperature sensor, The second spiral tube condenser, gas sample bag, liquid collection tube, anti-blocking ultrafine filter screen; the vacuum device includes a vacuum pump, a vacuum pressure gauge, and a load pressure transmitter; the pressure monitoring device includes: a high temperature resistant pressure gauge , High frequency pressure transmitter, safety relief valve. In the present invention, the supercritical medium generating tank and the coal gas liquefaction tank are operated separately, and deionized water is added into the supercritical medium generating tank to study the coal gas liquefaction effect.
Description
technical field [0001] The invention relates to a supercritical water-gas liquefaction experimental device and method of gas-containing coal, belonging to the field of coal gas liquefaction. Background technique [0002] Coal in-situ gas liquefaction mining technology refers to O 2 , CO 2 and water vapor as the reaction medium, using underground coal as raw material to produce CH 4 、H 2 Such as gas fuels and olefins and other gas-liquefied chemical raw materials, so as to realize the key technology of safe, efficient, clean and comprehensive utilization of coal. The traditional gas-to-liquid conversion temperature is mostly above 1000°C, and the energy consumption and investment are relatively large. The use of supercritical water (T≥374°C, P≥22.05MPa) as the reaction medium can enable high-moisture coal to obtain high-efficiency gas-liquid conversion at a lower temperature and in a shorter period of time without drying. extensive attention of scholars. [0003] In t...
Claims
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IPC IPC(8): G01N33/22B01J3/00
CPCB01J3/008G01N33/222Y02P20/54
Inventor 姜海纳徐乐华
Owner TAIYUAN UNIV OF TECH