Gasification continued thermal

A survey of commercial thermal gasification in the United States shows that few gasifiers have been installed since 1984 (115). Most units in use are retrofitted to small boilers, dryers, and kilns. The majority of existing units operate at 0.14 to 1.0 t/h of wood wastes on updraft moving grates. The results of this survey are summarized in Table 36. Assuming all 35 of these units are operated continuously, extremely unlikely, the maximum amount of LHV gas that can be produced is about 0.003 to 0.006 EJ/yr (222—445 td /d). 

During TPSR, the rate of gasification of the carbon deposit (as determined by continuous measurement of the effluent gas composition) was recorded as a function If time. The data are represented by the calculated gas production rate versus bed temperature as In conventional thermal analysis. TPSR analysis was performed for various conditions of exposure temperature, exposure duration, and exposure gas (CO, or C2H2) for both 1-... 

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