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In 2008, Lanzhou Petrochemical Company processed 10,189,900 tons of crude oil, completing 100.19% of the plan. This is Lanzhou Petrochemical crude oil processing volume exceeded 10 million tons for two consecutive years, marking the company has formed a stable scale of 10 million tons of oil refining.
In recent years, Lanzhou Petrochemical has earnestly implemented the scientific concept of development and built a device with an annual decompression of 5 million tons and a heavy press of 3 million tons per year. This has laid a solid foundation for increasing the processing volume of crude oil and achieving scale operations. Lanzhou Petrochemical has a large number of sources of crude oil processed, with varying quality, and some have strong corrosiveness to equipment. During the production process last year, Lanzhou Petrochemical deepened the optimization of resource allocation to maximize the potential of the plant. The 11th and 12th units focused on the processing of Xinjiang mixed oil; the 5 million tons of atmospheric and vacuum equipment mainly processed crude oil from Qinghai and Changqing oil fields. Increase the "triphenyl" yield; the annual 1.2 million tons of delayed coking unit is used to process the southern Xinjiang residue, so that the device structure is optimized and the potential is maximized.
Lanzhou Petrochemical also started from the promotion of the integration of refining and chemical industry, vigorously implemented technological transformation projects, optimized the production process, raw material allocation, and device structure, solved the production “bottleneck†problem, and promoted the improvement of technical and economic indicators.
Lanzhou Petrochemical has built a refinery dry gas concentration plant to provide dry gas to the ethylene plant. However, the dry gas plant compressor operation often fluctuates. The dry gas desulfurization unit is small in scale and affects the normal operation of the dry gas refining plant. In response to these problems, Lanzhou Petrochemical put forward a consummation scheme for refining ethylene ethane and dry gas, and reconstruct dry gas devices to ensure long-term stable operation of dry gas concentration and refining devices. After this transformation is completed, 22,000 tons of ethylene, 14,000 tons of ethane and 0.4 million tons of propylene can be recycled each year, creating a profit of 388 million yuan.
At the same time, Lanzhou Petrochemical made overall considerations based on crude oil inventories, quality and plant operating conditions, and used equipment shutdown maintenance opportunities to complete the annual import and export pipelines of 3 million tons of catalytic devices, energy-saving boilers, and 5 million tons of atmospheric and vacuum devices. Heat exchangers and Other transformation projects have improved the equipment operation level and support capabilities.
In order to ensure the safe, stable and long-term operation of the plant, Lanzhou Petrochemical strengthened the status monitoring of large generating units and key equipment, rationalized the relationship between “selection, management, use, and repairâ€, improved the equipment management system, and comprehensively promoted 6S management, and successfully completed The device was overhauled to keep the equipment in a controlled state.
Lanzhou Petrochemical seriously implemented the “six bans†in safety work, promoted the safety first responsibility system, and completed the maintenance task for 5 million tons of atmospheric and vacuum high-temperature oil pump motors and 11-port import and export pneumatic valves. The continuous decline in material consumption has created the conditions. In 2008, Lanzhou Petrochemical's crude oil processing losses decreased by 0.019 percentage points year-on-year, and light oil production increased by 1.05 percentage points year-on-year.
Lanzhou Petrochemical's crude oil processing capacity breaks 10 million tons for two consecutive years
Form a stable scale of 10 million tons of oil refining