The Shenhua coal direct liquefaction project will go into official operation in May this year
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This post was last edited by jordan569 on 2013-1-6 at 21:08. The coal direct liquefaction project of Shenhua Group is progressing smoothly. At present, the investment for the first production line of Phase 1 has been largely completed, trial production was successful, and full operation is scheduled to begin in May this year. It is understood that the total scale of the direct coal liquefaction project of Shenhua Group is an annual production of 5 million tons of oil products, with construction taking place in two phases. Phase 1 consists of 3 production lines, with a total investment of 24.535 billion yuan. The first production line under construction currently requires an investment of 12.3 billion yuan, and it is capable of producing 1.08 million tons of petroleum products per year. In addition, the Shenhua Group’s coal-to-natural gas project has a total investment of 20 billion yuan, with an annual production capacity of 2 billion cubic meters of natural gas. The first phase of the project requires an investment of 14 billion yuan. Currently, efforts are being made to gather preliminary data for the project. It is planned to be located in the Wulamulun coal chemical industry zone, with construction set to begin in May. . Note $ # , $ $
Has Shenhua Group obtained the environmental impact assessment approval for its coal-to-natural gas project? What methanation technology is being used?
Next, I will discuss the basic characteristics of Shenhua’s coal-to-natural gas plant: (1) It employs advanced coal gasification technology, resulting in a high carbon conversion rate and high energy efficiency. The gasification system utilizes 6.5 MPa water-coal slurry pressurized gasification technology, while methanation employs isobaric synthesis technology, which allows for full utilization of the pressure in the gasification system and reduces compression power consumption. (2) By using a sulfur-resistant shift catalyst suitable for high water vapor ratios, high-temperature water gas can be shifted directly without the need for cooling or additional steam supply, resulting in high heat recovery efficiency and reduced energy consumption. The condensate from the conversion process is used as make-up water for the gas processing section after being steam-stripped, thereby enabling full utilization of water resources. (3) The purification process utilizes low-temperature methanol washing for desulfurization and decarburization; it features advanced technology, high absorption efficiency, low energy consumption, and high purification quality. (4) For methanation, Topsoe’s cyclic methanation process is adopted, which enables isobaric synthesis with low system pressure drop. Methanation uses an adiabatic reactor, with a low syngas circulation ratio and thus low power consumption for the circulator. The heat released during methanation generates high-pressure superheated steam, which is used to drive the air separation turbine. The methanation system features high heat recovery efficiency, thereby reducing cooling costs. (5) Both the air separation compressor and the propylene compressor are driven by steam turbines, which reduces power consumption and improves energy efficiency. (6) The waste heat from various parts of the entire system is used to preheat desalinated water and boiler feedwater in a stepped manner, as well as to generate steam. The steam produced is utilized at different levels, and the steam condensate is fully recovered, resulting in a high energy utilization efficiency across the whole system. (7) In the refrigeration process, an energy-saving two-stage centrifugal compression refrigeration cycle is used, which features an \"intermediate work saver\" in its process flow; this increases the cooling capacity per unit mass of the working fluid, thereby achieving energy savings.
Shenhua’s progress in coal-to-natural gas production is too fast. Has the feasibility study been completed? Was it approved? If it’s infrastructure construction, the pace is very fast. How could it be determined so early which specific technologies will be used in each work section? Not very believable.
What is the hydrogenation reaction pressure for the direct liquefaction of Shenhua coal? What type of coal is mainly used?
Topsoe’s cyclic methanization process has only been tested on a pilot scale, with no industrial implementation experience; isn’t it a bit risky to move straight to industrial-scale installation?
Shenhua’s coal-to-natural gas projects are not just one! It’s available in Ordos, Ningxia, Baotou, and Wuhai in Inner Mongolia! This post was last edited by Zhenzhen Youci on 2009-3-3 19:08.]
It seems to be the one next to the Ordos liquefaction plant for now, hehe
Will there be oil production this year? It is said that more people will be hired this year, so keep an eye out.
The technical plan for coal-to-natural gas production hasn’t been finalized yet