Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6656931 | Fuel Processing Technology | 2015 | 7 Pages |
Abstract
The pyrolysis experiments were carried out in a fixed bed reactor at a reaction temperature of 873Â K and gas residence time of 1.0Â s. The physicochemical properties of bio-oils and bio-chars obtained from alkali lignin pyrolysis with and without KCl, CaCl2, and FeCl3 additives were studied. The compositions of bio-oils were examined using gas chromatography-mass spectrometry (GC-MS). Characterizations of bio-chars were performed using X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area and scanning electron microscopy (SEM) techniques. Adding KCl caused a sharp decrease in bio-oil yield while an increase in bio-char yield was found as a result. The addition of CaCl2 and FeCl3 significantly increased the yield of bio-oil and phenol content while inhibited the formation of char residues. The bio-char generated after FeCl3 addition has a much high BET surface area. This result indicates that the addition of FeCl3 in alkali lignin significantly improves the quality of both bio-oil and bio-char, which is beneficial to the usage of bio-oil for chemical materials and bio-char for activated carbon species.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Wen-Liang Wang, Xue-Yong Ren, Jian-Min Chang, Li-Ping Cai, Sheldon Q. Shi,