Product Description
Chemical Method for Hydrogen Sulfide Removal from Biogas
Desulfurization is a chemical process for the removal of sulfur from a material. This involves either the removal of sulfur from a molecule (e.g. A=S → A:) or the removal of sulfur compounds from a mixture such as biogas, methane and oil refinery streams. These processes are of great industrial and environmental importance as they provide the bulk of sulfur used in industry, sulfur-free compounds that could otherwise not be used in a great number of catalytic processes, and also reduce the release of harmful sulfur compounds into the environment, particularly sulfur dioxide (SO2) which leads to acid rain, and hydrogen sulfide (H2S) which leads to poison, even death.
Purpose of Desulfurization
Biogas, natural gas, coke oven gas, semi-water gas, petroleum associated gas and waste water contain hydrogen sulfide which is poisonous. Hydrogen sulfide can seriously corrodes equipment and pipelines. Inhalation of trace amounts of hydrogen sulfide can cause disability and endanger life. Therefore, hydrogen sulfide must be removed before it can be used as a clean energy source.
Dry desulfurization system is kind of standard equipment we designed and produced. According to the content of H2S in gas, the actual content of gas, the life cycle of absorbent, and other relevant data, we will specially design the system structure for customers. If you have fixed the dimensions and internal structure, we're also able to manufacture it according to your design drawings.
For real-time monitoring the reaction speed of sulfide and the oxygen in air in the process of regeneration, we added temperature monitoring equipment, this can avoid accident fires in the process of regeneration.(When the content of the entered air gets too large, the exothermic reaction will be violent, and the temperature will be above the sulfur's ignition point, which will lead to accidental fires.) Or you can simply get the absorbent outside the tank, and let it regenerate in the air.
Working principles
Fe2O3 · H2O+3H2S=Fe2S3 · H2O+3H2O
2Fe2S3 · H2O+3O2 = 2Fe2O3 · H2O+6S
Performance and characteristics
1. Simple structure, low investment, long lifetime
2. Easy to manage, reliable operation, dispense with staff on duty, refueling at fixed period, one use one reserve, alternate operation
3. Compared with wet method, need refueling at fixed period
4. High efficiency, applicable to small and medium projects with gas less than 5000m³/day, high precision of desulfurization (lower than 15ppm)
Application:
This dry desulfurization equipment can be used in biogas, livestock farms, starch, papermaking, sewage treatment, alcohol, chemical fiber, pharmaceutical, fertilizer, coking, landfill, gas, natural gas, ceramics, food, corn deep-processing, citric acid and other industries in the purification system.
| Comparison |
Dry Desulfurization |
Wet Desulfurization |
Micro Wet Desulfurization |
Biological Desulphurization |
| Application |
Small and medium projects with gas less than 5000m³/day; Second high precision desulfurization after other methods |
Large Gas Plant up to 100,000 m^3/ day; High sulfur content around 5g/Nm³ |
Large-scale |
Large-scale, high sulfur-containing gas (100ppm~20000ppm) |
| Power Consumption |
None |
High |
Moderate |
Moderate |
| Operating Cost |
Moderate, the desulfurizer need to be changed periodically |
Moderate |
Low |
Low cost on electricity bill |
| Land Scale |
Small |
Full set of equipment for gas desulfurization, regeneration, filtration and melting sulfur, in result, large land is required. |
Moderate |
Moderate |
| Operation Management |
Easy to manage, reliable operation, dispense with staff on duty |
Need people on duty to control the operation |
Automatic operation, simple maintenance |
Automatic operation, simple maintenance |
| Note |
Refueling at fixed period, one use one reserve, alternate operation |
Many equipment |
Less equipment than wet desulfurization |
|
| Advantages |
Simple structure, low investment, long lifetime, high precision of desulfurization (lower than 15ppm) |
It can deal with large amount gas, and the system can run continuously by using PH value to keep the efficiency. |
High efficiency by Iron Chelate, small in size, and high processing capacity |
High desulfurization efficiency 99.5%, no second pollution, stable performance, suitable for large-scale, high sulfur-containing gas |
Project Display: 100,000 m^3 Large-scale Desulfurization Project in Gaobeidian, Beijing
Company Profile
Management System Certification: ISO9001:2008, ISO14001:2004, OHSAS18001:2007
Company Introduction:
Shandong Mingshuo New Energy Technology Co., Ltd. Specializes in biogas project. The company is the production base of medium and large biogas equipments in China, the member of China Biogas Association, the member of China Association of Rural Energy Industry. The company is the recommended member of CCTV Website Enterprise Channel and China Import and Export Commodity Website, the most complete and excellent biogas equipments manufacturers in China. Mingshuo is a professional company integrating the scientific research, technological design, production and debugging service. The company specializes in the production of desulfurizer, desulfurization equipments and biogas equipments. Such as, Mingshuo MTZ biogas dedicated desulfurizer, MT ferric oxide desulfurizer, 889 wet desulfurization catalysts, water treatment agent, MS biogas dedicated desulfurization tanks, thioniers, biogas dedicated gas-water separators, assembled tanks, gas holders, positive-negative pressure protectors, biogas dedicated flame arresters, biogas boilers, deironing magnetic separation equipments, etc.
Contact: Emma Luan
Tel/Fax: +86 532 8576 2582
Phone: +86 176 6023 9752
Manufacturer & Supplier for Biogas Plant, Desulfurization System, Organic Waste Treatment Equipment etc
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