Datang Huayin LCC technology

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The last edit to this post was made by hao101029 on 2014-6-18 at 22:20. Technical features of the LCC process: Compared with other processing technologies, the LCC process has the following technical advantages: 1. Thin-layer drying & hot air circulation technology – The drying and pyrolysis processes make use of a unique thin-layer drying and hot air circulation technique. The thin thickness of the coal layer ensures uniform and steady heating during pyrolysis, allowing pollutants generated during this process to be removed promptly, thus resulting in clean, pollution-free products. 2. Modular design: The LCC technology features a modular design, offering strong disassembly capabilities. It allows for the flexible combination or removal of various modules based on the user’s needs and requirements for the product, thereby meeting the diverse needs of customers. 3. Strong regulatory capability: The drying and pyrolysis processes are completely independent of each other, allowing for easy industrial control of process parameters; fluctuations in the moisture and volatile content of the raw coal have little impact on the stability of the final product. Therefore, the product quality is more stable, and it has a stronger ability to adapt to different types of coal. At the same time, different yields and qualities of semi-coke and tar can be obtained through flexible adjustment of process parameters. 4. Ultra-low oxygen heat carriers are used to control the oxygen content of the pyrolysis gases; this prevents the fixed carbon in the coal from undergoing oxidation during the pyrolysis process. Unlike other processing methods, this approach does not involve any combustion, which gives the semi-coke PMC product unique microscopic properties. Experiments have shown that PMC can be used, when combined with calcination processes, as a raw material for acarbonized black powder, which serves as a covering material for lower-grade chemical products such as plastics, thereby increasing the added value of the product. 5. High thermal efficiency of the unit: The drying and pyrolysis equipment utilizes an internal heating vertical rotary bottom furnace with a gas-carrying system, along with a plow-type mechanical distributor, which ensures uniform heat exchange between the hot gases and the coal material, thereby maximizing heat transfer efficiency. The overall thermal efficiency of the unit can reach 90%. 6. The refined passivation LCC process employs a unique refining and passivation technique, using methods such as forced air intake/exhaust, continuous four-way mixing, and product gravity flow to carry out hydration and mild oxidation of PMC products, thereby achieving stabilization (refinement). 7. High oil recovery rate: The LCC process utilizes gas-carrying thin-layer drying and pyrolysis techniques, along with proprietary coal tar collection methods, to achieve an optimal oil recovery rate (which can exceed 80% of the theoretical value). Especially for coal types with high hydrogen content (such as the long-flame coal found in certain regions of Xinjiang), the tar recovery rate can reach 15–20%. The LCC process is a novel technology for converting low-grade coal into oil. 8. The water-saving and environmentally friendly LCC process involves only physical drying and mild chemical reactions; as a result, the water consumption of this project is much lower than that of coal chemical projects and power generation projects. There are no solid waste emissions during this process, and the dust generated during drying and pyrolysis is shaped and sold as a by-product. Waste water is recycled, enabling zero emissions.