The elution of metallic content from cotton stalk (CS) and its co-pyrolysis with waste tires (WT) was investigated in fixed bed reactor. Hydrochloric acid (HCl) was used for leaching and successful removal of metals from cotton stalk was observed. Removal efficiencies of 86%, 58%, 48%, 58% and 35% for potassium, calcium, magnesium, sodium, and iron metals were achieved, respectively. Pyrolysis and co-pyrolysis using various mixing ratios of raw (R-CS) and acid washed cotton stalk (W-CS) with waste tire were carried out at 550 °C. Co-pyrolyzing W-CS with WT not only resulted in increased liquid yield with reduced char and gas yields, but also improved the quality of pyrolytic oil evincing the occurrence of strong positive synergistic effect. The addition of WT reduced oxygenates, density and water content of oil whilst pH and calorific value are increased compared to both, R-CS and W-CS pyrolytic oils. Relative percentage area of hydrocarbons increased to 65% in co-pyrolysis of WT with W-CS as compared to 47% for that of R-CS at optimum blend ratio (CS:WT 1:3). Likewise, 19% higher reduction in oxygenated compounds was observed in W-CS and WT co-pyrolytic oil. Co-pyrolyzing WT with R-CS and W-CS resulted in improved quality of oil. However, the synergistic effect was less significant for R-CS suggesting that the presence of intrinsic metals in R-CS hampered the occurrence of synergistic effects.

在固定床反应器中研究了棉秆（CS）中金属含量的洗脱及其与废轮胎（WT）的共热解。使用盐酸（HCl）进行浸出，并观察到从棉秆中成功去除金属。钾，钙，镁，钠和铁的去除效率分别达到86％，58％，48％，58％和35％。使用生胎（R-CS）和酸洗棉秆（W-CS）与废轮胎的各种混合比例进行热解和共热解在550°C进行。将W-CS与WT共热解不仅可以提高液体收率，降低焦炭和气体的收率，而且还改善了热解油的质量，从而表现出强大的正协同作用。WT减少了含氧化合物，与R-CS和W-CS热解油相比，油的密度和含水量增加，而pH和热值增加。WT与W-CS共同热解时，烃类的相对百分比增加到65％，而在最佳混合比（CS：WT 1：3）下，R-CS的碳氢化合物的相对百分比为47％。同样，在W-CS和WT共热解油中观察到含氧化合物的减少量增加了19％。WT与R-CS和W-CS共同热解可改善油质。但是，协同效应对R-CS的影响较小，这表明R-CS中固有金属的存在阻碍了协同效应的发生。在W-CS和WT共热解油中观察到含氧化合物的减少量增加了19％。WT与R-CS和W-CS共同热解可改善油质。但是，协同效应对R-CS的影响较小，这表明R-CS中固有金属的存在阻碍了协同效应的发生。在W-CS和WT共热解油中观察到含氧化合物的减少量增加了19％。WT与R-CS和W-CS共同热解可改善油质。但是，协同效应对R-CS的影响较小，这表明R-CS中固有金属的存在阻碍了协同效应的发生。