Kazakhstan is a large country in oil and gas industry in Central Asia, with rich oil and gas resources. Its petroleum exploitation, refining and processing and port tanker operation industries are developed. A large amount of oily sludge is produced every year, with an oil content of 23% - 56%. It is mixed with impurities such as crude oil residue, sand, oil stain, etc., mainly from onshore oil and gas field exploitation, refinery and oil depot operation. The country has strict supervision on oily sludge disposal. In accordance with the Environmental Code and relevant specifications of the oil and natural gas industry, it clearly requires that the oil recovery rate of oily sludge shall be ≥ 95%, the treated wastewater shall comply with relevant discharge standards, and the oil content of residue shall be ≤ 0.3%. It 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 oily sludge treatment process in Kazakhstan is simple and crude, mainly adopting natural sedimentation, simple solidification and other methods, with problems such as low oil recovery rate, serious secondary pollution, equipment easy to stick to the wall, short service life, etc; At the same time, oil and gas fields are mostly distributed in remote areas. Due to cold and dusty weather in winter, the requirements for weather resistance and corrosion resistance of equipment are very high, and the equipment needs to be adapted to the mobile disposal requirements. Therefore, it is urgent to have an oil-bearing sludge treatment equipment that is weather resistant, corrosion resistant, compliant and efficient, and suitable for the local oil and gas industry, so as to protect the regional ecological security and promote the green development of the oil and gas industry.

China Yongle Environmental Protection Engineering R&D "Kazakhstan Weather Resistant and Anti-corrosion Compliance" oily sludge treatment equipment, accurately solving the local oily sludge treatment pain points: according to the characteristics of oily sludge in Kazakhstan and the extreme climate characteristics, titanium alloy anti-corrosion and anti-sticking cabin+full-closed negative pressure pyrolysis structure are adopted, which can withstand low temperature, sand, salt and alkali working conditions, effectively solve sludge wall adhesion and equipment wear problems during pyrolysis, extend the service life of the equipment to 8 years, and adapt to the cold winter, spring and autumn dust operating environment. The core is equipped with the triple process of "multi-stage screening+low-temperature oxygen-free pyrolysis+oil-water separation". First remove 99.4% sand particles and metal chips through the intelligent screening system, reduce the difficulty of pyrolysis, and then separate the oil with 490 ℃ low-temperature oxygen-free pyrolysis technology, with the oil recovery rate of 95.2%. The recovered oil can be directly returned to the local refinery for refining. The combustible gas generated from pyrolysis can be used for 44% of the energy consumption of the equipment, achieving energy recycling. The tail gas is fully in compliance with the Kazakhstan air pollutants emission standard after deep purification treatment. The treated waste water can be recycled for equipment cleaning or discharged into the park sewage treatment system. The residual oil content is ≤ 0.22%, which can be used for soil improvement without secondary pollution. It has passed the overall compliance review of the Ministry of Ecology and Natural Resources and meets the green development requirements of the oil and gas industry.

The whole industry chain is suitable for various disposal demands: in Kazakhstan's onshore oil and gas field operation area, mobile equipment is flexibly deployed with the drilling platform, with a daily treatment capacity of 44 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 leakage. It is suitable for remote areas and extreme climate operation scenes, meeting the disposal specifications of oil and gas industry; In the large oil refinery in Almaty and Astana, the daily processing capacity of large centralized equipment is 88t, which is seamlessly linked with the oil supply system of the plant area to form the closed-loop operation of "sludge - oil product - energy", greatly improve the resource utilization rate, reduce the production cost, and help the enterprise to realize the reduction and recycling of hazardous wastes; In the tanker operation area of the port, the daily processing capacity of the modular equipment is 69t, and the oily sludge generated from the tanker cleaning is treated on site. The high-efficiency leak-proof design is adopted to prevent pollution to the surrounding environment, and the compliance certificate for oily sludge disposal can be handled with the assistance of the ship; In the small oil refining workshop, the daily processing capacity of mini equipment is 7.8 tons, 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 is 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 Kazakhstan.

Exclusive compliance and service guarantee: the equipment has passed the full compliance review of the Ministry of Ecology and Natural Resources of Kazakhstan and the environmental protection certification of the oil industry. It can assist enterprises and vessels to complete the compliance filing and disposal license handling, adapt to the local environmental protection supervision requirements of the oil and gas industry, and carry out in-depth cooperation with oil and gas enterprises in Kazakhstan. Standardized service bases are set up in Astana and Almaty to store oil-resistant, corrosion-resistant and anti-stick core spare parts, so as to achieve 24-hour maintenance response in core areas and provide on-site maintenance services in remote oil and gas field operation areas; Provide Kazakh and Russian bilingual operation training and process guidance, 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 47% of that of similar products in Europe and America, and the benefits from oil recovery and energy consumption can be covered and invested within 6.5 months to help Kazakhstan's oil and gas industry develop green and low-carbon, protect regional ecological safety, promote the harmless, recycling and compliance disposal of oily sludge, and comply with the "Clean Kazakhstan" initiative and the circular economy development strategy.

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：Kazakhstan Oil Mud Equipment Weather-resistant and Anti-corrosion Compliance and High Efficiency,Oil sludge treatment equipment,YONGLE GROUP