EPA-108-XA08

108

3,580 千元

補助及獎勵回收清除處理暨再生利用

2019/01/01

2019/11/30

葉彥伯

回收基管會

楊百洲

財團法人環境資源研究發展基金會

廢棄物管理

水熱碳化、廢輪胎、汞蒸氣

Hydrothermally converted, Scrap tire, Mercury vapor

林進榮；劉雅瑄

楊志盛

02-25150369#166

shisei@ier.org.tw

本研究提出廢棄輪胎體積減量的新概念，將廢輪胎中的所含有材料，經系統化且有效率回收其中的原材料，並進一步地改質為更高級的材料，使這項傳統產業能提升到新的應用材料領域。我們以「水熱法轉化廢棄輪胎為高值產品」之研究，透過簡易的水熱法，進行脫硫反應以及雜質溶出，以利下一步驟的處理，接續地可以選擇溶劑法或是熱處理回收廢棄輪胎中的碳黑與橡膠，儘量維持其原始的物化特性使其有廣泛的應用層面；同時也可將原本含硫量就很高的廢棄輪胎直接轉化為含硫活性碳，用以吸附除污技術。回收碳黑的顆粒大小範圍是10 nm到100 nm，平均值約莫60 nm。其比表面積為25 m2/g、灰分<0.5%、pH6.3，本研究所獲得的回收碳黑可以取代N660和N770的半補強碳黑。回收橡膠的純度高，是以天然/人工橡膠為主體，固定碳15%，灰分幾近於0%。含硫活性碳對於Cu2+與Pb2+有較高的吸附能力，是源自硫元素對於鉛和銅的高親和力。同時，含硫活性碳對氣態的元素汞和液態的染料，具有除污的商業潛力。成本估算結果指出在不考慮時間價值下的回收期約為2.5年至40年，主要取決於產品的品質高低所能獲得的售價範圍。本研究是一項技術、三種回收產物。除了可減輕輪胎廢棄物對環境造成之衝擊外，亦可將輪胎廢棄物轉換為有用資源，變成附加價值高之產品，創造更高的效益。

水熱碳化、廢輪胎、汞蒸氣

期末報告定稿.pdf

8MB

期末報告

2020/2/1 上午 12:00:00

This project proposes a new concept of volume reduction of waste tires, systematically and efficiently recovers the useful materials contained in the waste tires, and further upgrades to higher-grade products, so that this traditional industry can be upgraded to new field of applied materials. We convert waste tires into high-value products, through the simple hydrothermal method with desulfurization reaction and impurity dissolution, in order to facilitate the next step of treatment, and then choose solvent method or heat treatment recovery. The carbon black and rubber in the waste tires maintain their original physicochemical properties to a wide range of applications. At the same time, the waste tires with high sulfur content can be directly converted into sulfur-containing activated carbon for adsorption technology. The recovered carbon black has a particle size ranging from 10 nm to 100 nm with an average of about 60 nm. The values of specific surface area, ash content and pH of the recovered carbon black are 25 m2/g, <0.5%, and 6.3. That indicated the properties of the recovered carbon black are similar to those of the semi-reinforcing carbon black of N660 and N770. The purity of the recycled rubber is high, and the natural/artificial rubber is the main body, the fixed carbon is 15%, and the ash is almost 0%. Sulfur-containing activated carbon has a high adsorption capacity for Cu2+ and Pb2+, and is derived from the high affinity of sulfur for lead and copper. At the same time, sulfur-containing activated carbon has a commercial potential for decontamination of gaseous elemental mercury and liquid dyes. The cost estimate indicates that the payback period is approximately 2.5 to 40 years, depending on the range of prices that can be obtained for the quality of the product. In addition to reducing the environmental impact of spent tires, our proposed routes convert the waste into useful materials with high added value.

Hydrothermally converted, Scrap tire, Mercury vapor