What is the preferred gasification technology for coal-based fuel gas?
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Since conventional fuel gas does not require high-pressure gasification, what is the preferred gasification technology for coal-based fuel gas?
Space furnace, water-coal slurry, briquette gasification; the latest development is the space furnace
Personal opinion: For coal-based fuel gas, the key factors are the maturity of the technology and the production cost of coal gas; it is known that Jingdezhen Coking chose an Endler furnace.
The optimal furnace type for coal-based fuel gas should be a vertical carbonization furnace, also known as an upright furnace. Chinese pyrolysis of coal. It requires low-grade raw coal, produces a large amount of gas, and also generates semi-coke and chemical products as by-products.
If pressure requirements are not too high, it is recommended to choose the Lurgi technology; it is a relatively mature technology. However, water treatment becomes more complicated, and there are greater environmental protection constraints, which are common issues with both fixed-bed and circulating fluidized bed systems.
Vertical furnaces have a limited processing capacity (100,000 tons per year); they use mild gasification methods, which results in less gas production. Additionally, treating the wastewater is difficult. The advantages are that the gas produced has a high calorific value, and tar is generated as a by-product. The original poster could mention what the annual demand for fuel gas is.
Since conventional fuel gas does not require high-pressure gasification, what is the preferred gasification technology for coal-based fuel gas? . . . . . A gasification technology that features low-pressure gasification, a simple process, high conversion efficiency, safe operation, no pollution, and wide adaptability to different coal types should be chosen.