Gasification technology entrained-flow gasifiers

Types of Gasifiers. There are three main types of gasification technologies entrained flow, moving bed, and fluid bed. Of the three, the entrained-flow gasifier possesses the greatest efficiency. Because it operates at a high temperature, nearly 99 percent of... 

Hitachi. This coal gasification technology is based on an oxygen-blown entrained flow gasifier, where the majority of experience has been gained in a 150 ton coal/day unit. The gasifier is a water-cooled tube that is lined by a high-temperature-resistant castable. Pulverized coal is pneumatically... 

The gasification technologies are normally classified into 3 groups moving bed gasifiers fluid bed gasifiers and entrained flow gasifiers. The main characteristics are summarised in Table 1.16. Typical raw gas compositions are shown in Table 1.17. 

Chapter 1 provided an overview of the most recent developments in gasification technologies. The three primary types of generic gasifiers are entrained flow, fluidized bed, and moving bed. 

FIG. 24-4 Gasifier types and temperature profiles a) fixed bed (dry ash) h) fluidized bed (c) entrained flow. This figure teas published in N. Holt and S. Alpert, Integrated Gasification Combined-Cycle Po-werG vol. 7, pp. 897-905, in Encyclopedia of Physical Science and Technology 3d ed. Copyright Elsevier, 2002.)... 

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