A technology of sewage sludge (SS) pyrolysis coupled with self-supplied steam reforming of the volatile is developed to utilize the latent heat of the steam vapor released in the SS drying & pyrolysis process. An integrated reactor consisting of a vertical free-falling pyrolysis section and a horizontal screw-moved reforming section is designed for this purpose. The performance of the reactor shows that by changing the moving speed of the char in the reforming section, high quality syngas with an H₂/CO ratio of 4.37 and a percentage of H₂ + CO up to 66.58 vol% can be obtained at approximately 570–600 °C for the dry SS. There is an optimum moving speed of the screw for producing the highest volume of the syngas. A higher moving speed of the screw also results in a higher concentration of the aromatic compounds in the final pyrolysis oil. When the initial moisture content of SS increases from 0 to 65.50%, the H₂/CO ratio and H₂/CO₂ ratio in the syngas increase from 4.37 to 30.87 and from 2.1 to 2.6 correspondingly, and the final oil yield decreases from 24.03 wt% to 14.16 wt%. Moreover, the total energy recovery efficiency decreases from 88.85% to 61.92%, while the energy portion of syngas shows a peak of 44.18% of the total energy input when the initial moisture content is 41.26%. The integrated reactor also provides a good opportunity for adding a catalyst such as dolomite to make the process more effective. The technology developed in this paper provides an approach to deal with SS with a relatively high moisture content.

开发了一种污水污泥（SS）热解技术，结合挥发物的自给式蒸汽重整技术，以利用SS干燥和热解过程中释放出的蒸汽蒸气的潜热。为此，设计了由竖直的自由下落热解段和水平的螺旋移动的重整段组成的集成反应器。反应器的性能表明，通过改变焦炭在重整段中的移动速度，可以制得H ₂ / CO比为4.37和H ₂百分比为高质量的合成气。 对于干燥的SS，在大约570–600°C的温度下，可以获得高达66.58 vol％的+ CO。为了产生最大量的合成气，螺杆具有最佳的移动速度。螺杆的较高移动速度还导致最终热解油中芳族化合物的浓度较高。当SS的初始水分含量从0增加到65.50％时，H ₂ / CO比和H ₂ / CO ₂合成气中的比率从4.37增加到30.87，从2.1增加到2.6，最终的油产率从24.03wt％减少到14.16wt％。此外，当初始水分含量为41.26％时，合成气的能量部分从总能量输入的44.18％达到峰值，而总能量回收效率从88.85％降低至61.92％。集成反应器还为添加催化剂（如白云石）提供了一个很好的机会，以使该过程更有效。本文开发的技术提供了一种处理水分含量相对较高的SS的方法。