A novel continuous reactor with shaftless spiral for chemical looping gasification (CLG) of rice husk is expected to propose for application and optimal parameter. Syngas concentration, efficiency, lower heating value of syngas and micromorphology structure were investigated under different conditions of temperature, ratio of OC and rice husk (O/C) and speed. The results indicated that CLG in the shaftless spiral reactor had a better performance. The gas yield, carbon conversion efficiency and gasification efficiency were 73.33%, 63.92% and 98.26% higher than that of fixed-bed reactor, respectively. Further, higher temperature obviously enhanced gas production and efficiency but was easy to cause agglomeration and harmful to OC regeneration. Furthermore, lower O/C would increase the combustible gas production but cause a serious sintering and decrease gas production and carbon conversion efficiency. Moreover, lower speed would promote the gas production and efficiency but cause agglomeration. In addition, lower speed had a greater effect on H₂ yield than CO. As a result, the shaftless spiral reactor was beneficial to CLG. The best performance with gas production of 70.99% and gasification efficiency of 67.80% was obtained in shaftless spiral reactor under the optimal parameters with temperature of 800 °C, O/C of 1.5 and speed of 5.5 r/min.

有望提出一种新颖的无轴螺旋连续反应器，用于稻壳的化学回路气化（CLG），以提供应用和最佳参数。研究了温度，OC /稻壳比（O / C）和速度等条件下合成气的浓度，效率，合成气的较低热值和微观形态结构。结果表明，无轴螺旋反应器中的CLG具有更好的性能。与固定床反应器相比，产气量，碳转化效率和气化效率分别提高了73.33％，63.92％和98.26％。此外，较高的温度明显提高了产气量和效率，但容易引起团聚，并且对OC再生有害。此外，较低的O / C会增加可燃气体的产生，但会导致严重的烧结并降低气体的产生和碳转化效率。而且，较低的速度会促进气体的产生和效率，但会导致团聚。此外，较低的速度对H的影响更大比CO的收率高₂倍。结果，无轴螺旋反应器对CLG有利。在温度为800°C，O / C为1.5，速度为5.5 r / min的最佳参数下，无轴螺旋反应器的最佳性能为产气率为70.99％，气化效率为67.80％。