Environmental protection in the petroleum refining industry

Why isn’t there anyone responding to such a great post? I’ll try to answer it: 1. Oil refining and processing: 1) Wastewater: This includes equipment for treating oily wastewater, sulfur-containing wastewater, alkali-containing wastewater, etc. There is currently a high demand for advanced wastewater treatment methods as well as for the reuse of wastewater. 2. Exhaust gases: mainly include coal-fired boilers and gas-fired boilers, as well as some process exhaust gases (such as sulfur exhaust gases, etc.). 3. Noise: Mainly includes boiler noise, compressor noise, and venting noise generated during the processing process. 4. Slag: mainly includes waste catalysts, alkaline slag, and the three types of sludge generated in wastewater treatment plants. II. Oil fields: mainly involves the treatment of oil production wastewater, gas released during the oil extraction process, and oil dehydration. If there are any omissions, please feel free to add more! ! !

This post was last edited by zfc318 on 2009-5-4 17:21. The petrochemical industry consists of highly polluting enterprises; gas, water, and waste all need to be treated, and each of these treatment processes presents considerable challenges. Although the treatment cost of refinery wastewater is high, it can also be reused to save costs.

This post was last edited by zfc318 on 2009-5-4 at 17:24. The most difficult aspect of oil refining is dealing with wastewater containing high levels of sulfur and ammonia nitrogen. Acidic water stripping units are generally used to address this issue, but the acidic water generated by delayed coking units, especially that produced during the heavy steam injection process, presents challenges when fed into such stripping units. In terms of operation, it is necessary to focus first on oil removal and to adjust the stripping load appropriately. As long as the ammonia nitrogen level is below 80 mg/l before it enters the subsequent equipment, there are generally no problems. Subsequently, ordinary physical and biochemical AO methods can solve the problem; it’s just a matter of the investment amount. Generally, the effluent meets the required standards. If it is to be reused after further treatment, CBAF is typically used along with an additional stage of treatment, followed by methods such as reverse osmosis, ozone treatment, and catalytic oxidation to ensure that the effluent meets the specified standards. The main issue regarding waste gas is hydrogen sulfide; if one wants to minimize investment, then sulfuric acid production is an option. The research institute of Nanhua has done quite well in producing sulfuric acid, and the design institute of Shandong LuNing Petrochemical has the highest level of expertise in 3D modeling for sulfur production. It’s very difficult to handle solid waste these days. **There are many lists of substances that need to be handled, but most companies are unable to do so – firstly because there are so many different types of waste, and secondly because the companies qualified to handle such waste charge exorbitant prices; the cost of disposing of one ton of solid waste is almost equal to the price at which it was purchased in the first place. As a result, many companies handle this issue on their own. It is likely that **regulations will become stricter in the future.

Supplementary: 1. Wastewater: salty and alkaline. 2. Exhaust gas: from tank areas, loading/unloading operations, and wastewater treatment plants. 3. Noise: generated during the start-up and shutdown of steam systems. 4. Solid waste: debris removed from equipment during maintenance

It’s mainly wastewater, waste residues, and waste gases; noise is also a serious issue.