Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Catalytic Upgrading of Coal Pyrolysis Volatiles by Porous Carbon Materials Derived from the Blend of Biochar and Coal
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-29 , DOI: 10.1021/acsomega.0c05467 Meijun Wang 1 , Qian Wang 1 , Ting Li 1 , Jiao Kong 1 , Yanfeng Shen 1 , Liping Chang 1 , Wei Xie 2 , Weiren Bao 1
ACS Omega ( IF 3.7 ) Pub Date : 2021-01-29 , DOI: 10.1021/acsomega.0c05467 Meijun Wang 1 , Qian Wang 1 , Ting Li 1 , Jiao Kong 1 , Yanfeng Shen 1 , Liping Chang 1 , Wei Xie 2 , Weiren Bao 1
Affiliation
|
A suite of carbon materials is prepared from biochar and coal at three different blending ratios with 10, 20, and 30% biochar by mass. These carbon materials are activated by steam to obtain porous structures. The effect of the inactivated and activated carbon materials on the cracking of coal pyrolysis volatiles is evaluated. The results indicate that the inactivated carbon materials are beneficial to improve the yield of light oil with a boiling point below 170 °C. The steam-activated carbon materials are more conducive to cracking tar pitch than the inactivated carbon materials due to the increased defects in carbon structure. However, it is also easy to form more coke deposits. More components rich in hydrogen are cracked to generate radicals that could combine with the phenols’ precursor over carbon materials, and the content of phenols in tar is increased. The carbon materials prepared from biochar and coal using this method show distinct advantages as filter media in the granular bed duster. It can improve the quality of tar along with reducing the dust content in tar.
中文翻译：
生物炭与煤的共混物产生的多孔碳材料对煤热解挥发物的催化降解作用
由生物炭和煤以三种不同的混合比（质量百分比为10％，20％和30％）制备一套碳材料。这些碳材料被蒸汽活化以获得多孔结构。评估了灭活和活性炭材料对煤热解挥发物裂解的影响。结果表明，灭活的碳材料有利于提高沸点低于170℃的轻油的产率。由于碳结构中缺陷的增加，蒸汽活化的碳材料比失活的碳材料更易于裂解焦油沥青。但是，也容易形成更多的焦炭沉积物。更多富含氢的组分会裂解生成自由基，这些自由基可能与酚类的前体结合在碳材料上，并且增加了焦油中酚的含量。使用这种方法由生物炭和煤制得的碳材料具有明显的优势，可作为颗粒床除尘器中的过滤介质。它可以提高焦油质量，同时减少焦油中的粉尘含量。
更新日期：2021-02-09
中文翻译：
生物炭与煤的共混物产生的多孔碳材料对煤热解挥发物的催化降解作用
由生物炭和煤以三种不同的混合比（质量百分比为10％，20％和30％）制备一套碳材料。这些碳材料被蒸汽活化以获得多孔结构。评估了灭活和活性炭材料对煤热解挥发物裂解的影响。结果表明，灭活的碳材料有利于提高沸点低于170℃的轻油的产率。由于碳结构中缺陷的增加，蒸汽活化的碳材料比失活的碳材料更易于裂解焦油沥青。但是，也容易形成更多的焦炭沉积物。更多富含氢的组分会裂解生成自由基，这些自由基可能与酚类的前体结合在碳材料上，并且增加了焦油中酚的含量。使用这种方法由生物炭和煤制得的碳材料具有明显的优势，可作为颗粒床除尘器中的过滤介质。它可以提高焦油质量，同时减少焦油中的粉尘含量。
京公网安备 11010802027423号