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Synergistic effect in low temperature co-pyrolysis of sugarcane bagasse and lignite
Shuang Yi,Xuan-ming He,Hong-tao Lin,Hui Zheng,Cui-hua Li,Chong Li 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.10
Sugarcane bagasse was co-pyrolyzed with lignite in a fixed bed reactor to investigate the possible interaction during co-pyrolysis. GC-MS revealed that the concentration of phenols and aliphatic compounds in the tar increased with the addition of sugarcane bagasse, while the content of aromatic compounds had the contradictory tendency. The phenol content in co-pyrolyzed tar reached 20.35%, which increased by 142.26% compared with the calculated values. The sugarcane bagasse decomposition peak partly overlapped with lignite pyrolysis peak from TG-DTG curves, which meant more interaction between lignite and sugarcane bagasse during the pyrolysis process. The difference between the experimental and calculated values of pyrolysis products yield, tar components, DTG values and kinetics analysis indicated the synergetic effect between lignite and sugarcane bagasse.
( Ya-min Lai ),( Wei-yan Yao ),( Yao He ),( Xuan Jiang ),( Yu-bei Gu ),( Min-hu Chen ),( Yu-lan Liu ),( Yao-zong Yuan ),( Jia-ming Qian ) 대한소화기학회 2017 Gut and Liver Vol.11 No.2
Background/Aims: Patients with active ulcerative colitis (UC) have elevated levels of activated myeloid-derived leukocytes as a source of inflammatory cytokines. The selective deple-tion of these leukocytes by adsorptive granulocyte/monocyte apheresis (GMA) with an Adacolumn should alleviate inflammation, promote remission and enhance drug efficacy. However, studies have reported contrasting efficacy out-comes based on patients` baseline demographic variables. This study was undertaken to understand the demographic features of GMA responders and nonresponders. Methods: This was a multicenter study in China involving four institutions and 34 patients with active UC. Baseline conventional medications were continued without changing the dosage. The treatment efficacy was evaluated based on the endo-scopic activity index and the Mayo score. Results: Thirty of the 34 patients completed all 10 GMA treatment sessions. The overall efficacy rate was 70.59%. The receiver operating characteristic analysis showed that the area under the curve was approximately 0.766 for a Mayo score of ≤5.5 with 0.273 specificity and 0.857 sensitivity (Youden index, 0.584) for GMA responders. No GMA-related serious adverse events were observed. Conclusions: The overall efficacy of GMA in patients with active UC who were taking first-line medications or were corticosteroid refractory was encouraging. Addition-ally, GMA was well tolerated and had a good safety profile. (Gut Liver 2017;11:216-225)