Due to its low energy density and high oxygen content, biomass is often pretreated by slow pyrolysis to form semi-char which is then fed to the entrained flow gasification reactor.

运用慢速热解方式对生物质颗粒进行预处理，半焦作为生物质气流床气化的原料，通过自动量热仪和元素分析仪对稻草和梧桐树叶热解后的半焦进行热值、元素分析。

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However, the ANAMMOX reactor start-up is very slow and difficult.

但是，厌氧氨氧化菌生长缓慢，厌氧氨氧化反应器启动困难。

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The fuel cannot melt down in a thorium reactor because it is already molten, and reactions slow down as it cools.

WSJ: After Japan's Earthquake and Fukushima Disaster, Matt Ridley on Gas-Fired Generation and Thorium | Mind & Matter

Professor Egil Lillestol of Bergen University has been pushing thorium for some years now, and thinks that Norway should set the trend in building a prototype accelerator-driven reactor in which a massive particle accelerator converts thorium-232 to uranium-233 by irradiating it with slow (spallation) neutrons generated by the impact of a 1.6 GeV proton beam on a lead target.

FORBES: Thorium Nuclear Power -- A Lesson From Norway