Abstract
This paper presents the debugging test of biomass circulating fluidized bed gasifier in a rice mill factory of Jiangsu Province. The main debugging process of the gasifier system is reported. The typical problems of the gasifier system during the debugging period are analyzed, including the blockage of the primary cyclone separator, blockage of loop seal, bed inventory leakage of blast cap on air distribution plate, feeding tube coking, and large fluctuation of bed pressure. Reasonable improvement countermeasures and implementation plan is provided. The operation characteristics of the gasifier are preliminaries mastered through debugging, which provides reference for the operation and adjustment of the biomass circulating fluidized bed gasifier. These results provide certain guiding significance for the scale application of biomass circulating fluidized bed gasifier.
Highlights
The development and utilization of biomass energy are of great significance to reduce greenhouse effect, air pollution and energy pressure
Some progress has been made in the research and application of small gasification power generation, but it is mainly concentrated in fixed bed gasification, with problems such as low efficiency and small scale
The existing reports are basically applied to the gasification coupling large coal-fired power generation system, such as the 10.8 × 106 W biomass circulating fluidized bed (CFB) gasification coupling power generation system of Guodian Changyuan Power Plant, and the 20 × 106 W
Summary
The development and utilization of biomass energy are of great significance to reduce greenhouse effect, air pollution and energy pressure. The commercial development of biomass CFB gasifier abroad is relatively mature. Biomass gasification plants abroad are generally large in scale, high in automation and complex in process. Research on biomass gasification technology in China started relatively late. Biomass circulating fluidized bed gasifier is still in the laboratory stage in China, and there are few reports of its industrial application. There are few reports about the commissioning process and operational problems of biomass CFB gasifier. This paper summarizes the commissioning and operation characteristics of 5 t/h biomass circulating fluidized bed gasifier in a rice plant in Jiangsu Province, which is aiming to provide reference for the large-scale application of this type of gasifier
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