Room-temperature liquid-phase Claus process taking ionic liquid as media
An ionic liquid, normal temperature technology, applied in gas treatment, separation methods, dispersed particle separation, etc., to achieve the effects of no VOCs emissions, low energy consumption, and low operating temperature
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[0033] Example 1: See attached for the process figure 1 , Set the absolute pressure to 1MPa, temperature to 30℃, H 2 Natural gas with a S content (molar fraction) of 1% is fed into the large absorption tower A1 at 1 point. The absorption liquid used is the ionic liquid 1-hexyl-3-methylimidazole chloride ([hmim][Cl]). The operating temperature of the large absorption tower A1 is normal temperature, the operating pressure is 1MPa, and the operating liquid-gas ratio is 20Kg / Nm 3 . The operating temperature of the small absorption tower A2 is normal temperature, the operating pressure is normal pressure, and the operating liquid-gas ratio is 5Kg / Nm 3 . Contains SO 2 The gas flow pressure is normal pressure and the temperature is 30℃, and it is input into the small absorption tower A2 from position 3. The packing used in the absorption tower A1 and A2 is mellapak250Y. The operating pressure of reaction tower D is 1MPa, the operating temperature at the top of the tower is normal t...
Example Embodiment
[0035] Example 2: The process is similar to that of Example 1, see attached figure 1 , The absolute pressure is 0.1MPa, the temperature is 30℃, H 2 The coke oven gas with an S content (molar fraction) of 3% is fed into the large absorption tower A1 from one place. The ionic liquid used is trifluoroacetic acid-triethylbutylammonium salt ([N 2224 ][CF 3 COO - ]). The operating temperature of the large absorption tower A1 is normal temperature, and the operating liquid-gas ratio is 40Kg / Nm 3 . The operating temperature of the small absorption tower A2 is normal temperature, and the operating pressure is normal pressure. Contains SO 2 The airflow pressure is normal pressure, the temperature is 30℃, and the operating liquid-gas ratio is 5Kg / Nm 3 , Enter the small absorption tower A2 from position 3. The packing used in the absorption tower A1 and A2 is mellapak250Y. The operating pressure of reaction tower D is 1MPa, the operating temperature at the top of the tower is normal tem...
Example Embodiment
[0036] Example 3: The process is similar to Example 1, see attached figure 1 , Set the absolute pressure to 1MPa, temperature to 30℃, H 2 The hydrodesulfurization gas with a S content (molar fraction) of 2% is fed into the large absorption tower A1 from one location. The ionic liquid used was N-butylpyridine chloride ([BuPy][Cl]). The operating temperature of the large absorption tower A1 is normal temperature, and the operating liquid-gas ratio is 10Kg / Nm 3 . The operating temperature of the small absorption tower A2 is normal temperature, the operating pressure is normal pressure, and the operating liquid-gas ratio is 5Kg / Nm 3 . Contains SO 2 The gas flow pressure is normal pressure and the temperature is 30℃, and it is input into absorption tower A2 from position 3. The packing used in the absorption tower A1 and A2 is mellapak250Y. The operating pressure of reaction tower D is 1MPa, and the operating temperature at the top of the tower is normal temperature, H 2 S vs. SO...
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