China Drying Network On December 18th, China's first coal-based natural gas demonstration project approved by the National Development and Reform Commission and completed by the China Datang Corporation, Datang Inner Mongolia's Keshiketengqi Coal-based Natural Gas Demonstration Project was put into operation and formally went to CNPC Beijing. Segment natural gas pipelines deliver clean coal-to-natural gas products.
Zhang Ming, general manager of Datang Energy Chemicals and Chairman of Keqi Coal-based Natural Gas Company, said that the construction scale of the Keqi coal-based natural gas project is an annual output of 4 billion cubic meters, which is divided into three series of continuous rolling construction, with 1.33 billion cubic meters of each series. Meter. The production of this project is a series of installations for the project; the second and third series will be completed and put into operation in 2014 and 2016, respectively. At that time, 4 billion cubic meters of natural gas produced by the project will pass through Chifeng City, Xilin Gol League, and Chengde City via supporting gas pipelines, and will be integrated into Beijing Natural Gas Pipeline via the CNPC gas pipeline at Gubeikou Station in Miyun County, Beijing City. 430 km.
According to report, the main process route of the Keqi coal gas project was adopted by Hangyang Oxygen large-scale air separation, pressurization and gasification of crushed coal, sulfur-tolerant and oil-resistant conversion, low-temperature methanol scrubbing and propylene compression refrigeration, and Claus-ammonia sulfur Recycling and other domestic mature technologies, as well as world-class, domestic first-introduction of the British company Davy synthetic methane technology, Canada Pu same natural gas drying technology. Compared with Lurgi coal gasification and Shell and other processes, the sulfur-tolerant and oil-resistant conversion and low-temperature methanol scrubbing technologies reduce the amount of processing, consumption, and investment. Most of the project's equipment and materials are based in China and only a small amount is introduced.
Zhang Ming told reporters that the biggest feature of Datang Keqi Coal-to-Gas Demonstration Project was the use of inferior lignite as raw material, which was the first case in the world. This has found a realistic new way for the large-scale development and utilization of lignite in China. Lignite has low calorific value, high ash content, and high moisture content. Prior to this, there was no precedent for large-scale utilization of coal in the coal chemical industry worldwide. Datang Corporation carried forward the pioneering spirit and realized a major technological breakthrough in the pressure raising of the pulverized coal pressurized gasifier, which increased the methane conversion efficiency from 8% to 12%, and greatly improved the efficiency of resource utilization. Datang also achieved a technological leap in wastewater treatment, ensuring that the wastewater treatment of coal gas projects meets environmental protection requirements.
In recent years, the smog pollution in the country has become increasingly serious, and the demand for clean energy natural gas has soared. At present, China's dependence on foreign gas has reached 30%, and it is expected to climb to 40% after 5 years. Coal-based natural gas is one of the five new coal chemical routes that our government encourages to develop, which will help ease the increasingly prominent contradiction between natural gas supply and demand. As the first coal-to-gas natural gas demonstration project approved by the State, the construction of the Datang Keqi Coal-based Natural Gas Project officially commenced on August 30, 2009, setting off the prelude to the development of China's coal-based natural gas.
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