Congo (Kinshasa) has rich oil and gas resources. With gradual development of oil exploitation, oil refining and processing and port tanker operation industry, a large amount of oily sludge is produced every year, with an oil content of 22% - 55%, mixed with impurities such as crude oil residues, sand particles and oil pollution, mainly from onshore oil and gas field exploitation, small refinery and port tanker cleaning operations. The country has strict supervision on the disposal of oily sludge. In accordance with the Environmental Protection Law, Mining Code and relevant industry specifications, it clearly requires that the oil recovery rate of oily sludge shall be ≥ 95%, the treated wastewater shall comply with the relevant discharge standards (pH 6-9, concentration of heavy metals ≤ 0.5mg/L), and the oil content of residue shall be ≤ 0.3%, which can be used for soil improvement or safe landfill. Arbitrary discharge and simple disposal are strictly prohibited. Violating enterprises will face high fines and production ban. At present, the treatment process of oily sludge in Congo (Kinshasa) is simple and crude, mainly adopting natural sedimentation, simple solidification and other methods, with problems such as low oil recovery rate, serious secondary pollution, easy wall adhesion of equipment and short service life; At the same time, oil and gas fields are mostly distributed in remote areas, with high temperature, damp and hot, complex road conditions, high requirements for corrosion resistance and mobility of equipment, and need to adapt to unstable power and low cost operation and maintenance requirements. Therefore, it is urgent to have an oil-bearing sludge treatment equipment that is corrosion resistant, compliant and efficient, and suitable for the local oil and gas industry, protect the regional ecological safety, and promote the green development of the oil and gas industry.

China Yongle Environmental Protection Engineering R&D "Congo (Kinshasa) Corrosion Resistant and Adaptable" oil-bearing sludge treatment equipment, accurately solving the pain points of local oil-bearing sludge treatment: According to the characteristics of oil-bearing sludge in Congo (Kinshasa) and the characteristics of high temperature, damp and hot climate, anti-corrosion and anti-sticking cabin+full-closed negative pressure pyrolysis structure are adopted, which can withstand high temperature, damp and hot, salt and alkali conditions, effectively solving the problems of sludge wall adhesion and equipment wear during pyrolysis, prolonging the service life of the equipment to 7.5 years, and adapting to remote areas and complex working conditions. The core is equipped with the triple process of "multi-stage screening+medium-temperature oxygen-free pyrolysis+oil-water separation". First remove 99.3% sand particles and metal chips through simple intelligent screening system to reduce the difficulty of pyrolysis, and then separate the oil with 485 ℃ medium-temperature oxygen-free pyrolysis technology. The oil recovery rate reaches 95.1%. The recovered oil can be directly returned to the local small refinery for refining. The combustible gas generated by pyrolysis can be used for 43% of the energy consumption of the equipment, realize energy recycling and reduce the operating cost. The tail gas completely meets the air pollutants emission standard of Congo (Kinshasa) after deep purification treatment. The treated waste water can be recycled for equipment cleaning or discharged into the sewage treatment system of the park. The oil content of the residue is ≤ 0.21%, which can be used for soil improvement without secondary pollution. It has passed the overall compliance review of the Ministry of Ecology and Sustainable Development and meets the green development requirements of the oil and gas industry.

The whole industry chain scene is suitable to cover various disposal demands: in the Congo (Kinshasa) onshore oil and gas field operation area, the mobile equipment is flexibly deployed with the drilling platform, with a daily processing capacity of 43 tons. It is specialized in the disposal of oil-based drilling mud and drilling rock debris, so as to avoid soil and groundwater pollution caused by sludge transportation and leakage. It is suitable for remote areas and complex road conditions, meeting the disposal specifications of the oil industry; In the small oil refineries in Kinshasa and Lubumbashi, the daily processing capacity of large centralized equipment is 86 tons, which is seamlessly linked with the oil supply system of the plant area to form the closed-loop operation of "sludge - oil products - energy", greatly improve the resource utilization rate, reduce the production cost, and help the enterprises to achieve the reduction and recycling of hazardous wastes; In the tanker operation area of the port, the daily treatment capacity of the modular equipment is 68t, and the oily sludge generated from the tanker cleaning is treated on site. The high-efficiency anti-seepage design is adopted to prevent pollution to surrounding water bodies and soils, and the compliance certificate for oily sludge disposal can be handled by assisting the ship; In the small oil refining workshop, the daily processing capacity of mini equipment is 7.6t, which is low cost and easy to operate. The oil recovery revenue can quickly cover the equipment investment, and it is suitable for the operation requirements of small workshops; Oily sludge treatment shall be completed at the site of small equipment around the oil depot to reduce storage and transportation costs and avoid oil pollution to groundwater, which is in line with the water resources protection planning of Congo (Kinshasa).

Exclusive compliance and service guarantee: the equipment has passed the full compliance review and environmental protection certification of the Ministry of Ecology and Sustainable Development of Congo (Kinshasa), which can assist enterprises and vessels to complete compliance filing and disposal permit handling, adapt to the local environmental protection supervision requirements of oil and gas industry, and carry out in-depth cooperation with the National Petroleum Corporation of Congo (COO). Standardized service bases are set up in Kinshasa and Lubumbashi to store oil-resistant, corrosion-resistant and anti-stick core spare parts, realize 24-hour maintenance response in core areas, and provide on-site maintenance services in remote oil and gas field operation areas; Provide bilingual operation training and process guidance in French and Swahili, simplify equipment maintenance process, adapt to local operation and maintenance level, and focus on training on cleaning and maintenance skills of anti-stick bulkhead; The equipment procurement cost is only 46% of that of similar products in Europe and America. The benefits from oil recovery and energy consumption can be covered and invested within 7 months to help the green and low-carbon development of the oil and gas industry in Congo (Kinshasa), protect regional ecological safety, promote the harmless, recycling and compliance disposal of oily sludge, and comply with the environmental protection development strategy of Congo (Kinshasa) and the requirements of international environmental protection conventions.

Yongle Environmental Protection is mainly engaged in the research and development, production and sales of complete sets of technical equipment for organic solid waste disposal and comprehensive utilization. Production and manufacturing, domestic waste treatment equipment, tire pyrolysis equipment, medical waste disposal equipment, hazardous waste disposal equipment, and achieve efficient and comprehensive utilization of resources through independently developed low-temperature anaerobic pyrolysis equipment technology solutions.

Tags：Anti-corrosion anti-sticking and extended service life of Congo Gold sludge equipment,Oil sludge treatment equipment,YONGLE GROUP