Combined with the actual production process

a test was carried out on a 10 MW biomass gasification unit coupled with a 600 MW coal-fired unit. In this experiment

two kinds of fuel modes were used in actual production

which were rice husk and 50% rice husk+50% straw. The results show that

the biomass gasification device could produce biomass gas with stable components and calorific value at the rated load. The calorific value of biomass gas increased with the load in the range of 75% to 110% gasification load. When keeping the load of coal-fired unit unchanged at 600 MW and the biomass gasification device operating normally

the NO_x formation amount dropped

and the emissions of SO_2 and NO_x satisfied the environmental protection standard. The steam temperature deviation at the outlet of high temperature reheater exceeded the operating standard range. The standard coal consumption reduced by 3 300 kg/h and the rate of auxiliary power consumption reduced by 0.02%. The biomass gasification coupled power generation system has the advantages of high efficiency

environmental protection and energy saving

it can not only make efficient use of biomass resources

but also meet the high-quality development and low-carbon demand of modern thermal power enterprises.