1. Performance Characteristics and Applications
MZX conversion absorption type fine desulfurizer can convert various organic sulfur (such as thiol, sulfide, disulfide, carbon disulfide, carbon disulfide, etc.) into inorganic sulfur (H2S), and then absorb it (total sulfur content in outlet purified gas<0.1×); 10-6), achieving the goal of precise desulfurization. It can replace the cobalt molybdenum hydrogenation series zinc oxide process and is widely used for the refined removal of organic and inorganic sulfur in petroleum and natural gas, refinery gas, and chemical feed gas. Compared with the cobalt molybdenum hydrogenation series zinc oxide desulfurization process, it has the following characteristics:
1, easy to drive, no need for hydrogen sulfide.
2. Low investment and operating costs, only 1/2 to 1/3 of the cobalt molybdenum hydrogenation zinc oxide process.
3. High desulfurization accuracy, total export sulfur<0.1× 10-6, while the cobalt molybdenum hydrogenation series zinc oxide process often exports total sulfur>0.1× 10-6.
4, with high working sulfur capacity, the double tower series can reach up to 18%.
5. Fast reaction speed, with an air velocity of up to 1000-2000h-1.
6. The price is cheap, only 1/5 of the cobalt molybdenum hydrogenation zinc oxide process.
II. Principle of desulfurization
Under the catalytic action of MZX desulfurizer, organic sulfides are hydrolyzed, hydrolyzed, and pyrolyzed into H2S. Then, H2S reacts with the active metal oxides in the desulfurizer to form metal sulfides, achieving the purpose of removal.
1. Organic sulfur catalytic conversion
(1) Hydrogenolysis: RSH+H2==H2S+RH RSR’ +H2===H2S+RH+R’ H RSSR’ +3H2===2H2S+RH+R’ H
(2) Hydrolysis:; RSH+H2O===H2S+ROH RSR+H2O===H2S+2ROH
(3) Pyrolysis: 2CH3SH △ 2H2S+C2H4 CH3SCH3 △ H2S+C2H4
2. Absorption of sulfides
(1) H2S removal (M represents metal): H2S+MO===MS+H2O
(2) Removal of organic sulfur:; RSH+MO===MS+ROH
III. Main Physical and Chemical Properties and Quality Indicators
|
External Observation |
Granularity (mm) |
Bulk density (Kg/L) |
Specific surface area (m2/g) |
Pore volume (mL/g) |
Void ratio |
Working sulfur capacity (Wt%) |
Lateral compressive strength (N/cm) |
|
Black brown stripe |
(3～5)× (3～15) |
1.0～1.2 |
45 |
0.2～0.4 |
0.4 |
≥ 13 |
≥ 30 |
