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51篇 您的检索式:作者名="Xiujin Li"
    题名 作者 年代 出处 被引量
1Wheat straw pretreatment with KOH for enhancing biomethane production and fertilizer value in anaerobic digestion显示文摘Wheat straw biodegradability during anaerobic digestion was improved by treatment with potassium hydroxide(KOH)to decrease digestion time and enhance biomethane production and fertility value.KOH concentrations of1%(K1),3%(K2),6%(K3)and 9%(K4)were tested for wheat straw pretreatment at ambient temperature with a C:N ratio of 25:1.86% of total solids(TS),89% of volatile solids(VS)and 22% of lignocellulose,cellulose and hemicellulose(LCH)(22%)were decomposed effectively with the wheat straw pretreated by 6% KOH.Enhanced biogas production and cumulative biomethane yield of 258 ml·(g VS)^(-1)were obtained increased by 45% and 41%respectively,compared with untreated wheat straw.Pretreated wheat straw digestion also yielded a digestate with higher fertilizer values potassium(138%),calcium(22%)and magnesium(16%).These results show that TS,VS and LCH can be effectively removed from wheat straw pretreated with KOH,improving biodegradability biomethane production and fertilizer value.Muhammad Jaffar Yunzhi Pang Hairong Yuan Dexun Zou Yanping Liu Baoning Zhu Rashid Mustafa Korai Xiujin Li 2016Chinese Journal of Chemical Engineering2016,24,3:11
2Effect of Ni Loading and Ce_(x)Zr_(1-x)O_(2) Promoter on Ni-Based SBA-15 Catalysts for Steam Reforming of Methane显示文摘有象 10wt%Ni/10wt%CexZr1_x:O2/SBA-15 一样从 5wt%到 20wt% 的镍内容的一系列 Ni/SBA-15 催化剂(x=0, 0.5, 1 ) 被准备。催化剂的结构用 XR.D, TPR, TEM 和赌注技术被描绘。为甲烷改过的蒸气的催化剂的催化活在连续流动被评估微反应堆。结果显示了那 Ni/SBA-15 和 Ni/CexZr1_x; O2/SBA-15 催化剂在气压有好催化活。10wt%Ni/SBA-15 催化剂在 800 点展出了优秀稳定性 ?? 在 740 h 的溪流上的时间的 6 号元素碳的化学符号。在反应以后,碳沉积没在催化剂的表面上被形成。在那里存在一常规六角形我在 Ni/SBA-15 和 Ni/CexZr1_x 的酣睡的结构; O2/SBA-15 催化剂。镍种类和 CexZr1_x; O2 部件都在 SBA-15 中央毛孔被限制。CexZr1_x; O2 能在 Ni/CexZr1_x 支持镍种类的分散; O2/SBA-15 催化剂。给词调音:基于 Ni 的催化剂;SBA-15;甲烷;冒热气改过;Huijun Wan Xiujin Li Shengfu Ji Bingyao Huang Kai Wang Chengyue Li 2007Journal of Natural Gas Chemistry2007,16,2:6
3Combined pretreatment using CaO and liquid fraction of digestate of rice straw: Anaerobic digestion performance and electron transfer显示文摘To improve anaerobic digestion(AD)efficiency of rice straw,solid alkaline CaO and the liquid fraction of digestate(LFD)were used as pretreatment agents of rice straw.The results showed that AD performance of rice straw with CaOLFD pretreatment was optimal in different pretreatment methods of the CaO+LFD,CaOLFD,LFD+CaO,CaO,and LFD.The maximum methane yield(314 ml(g VS)^(-1))and the highest VFAs concentration(14851 mg·L^(-1) on day 3)of the CaOLFD pretreatment group were 81%and 118%higher than that of the control group,respectively.Under the action of solid alkaline CaO,the bacteria of Clostridium,Atopostipes,Sphaerochaeta,Tissierella,Thiopseudomonas,Rikenellaceae,and Sedimentibacter could build up co-cultures with the archaeal of Methanosaeta,Methanobacterium,and Methanosarcina performing direct interspecies electron transfer(DIET)and improving AD performance of rice straw.Therefore,the combined pretreatment using CaO and LFD could not only pretreat rice straw but also stimulate co-cultures of microorganism to establish DIET enhancing AD efficiency.Ruolin Guan Hairong Yuan Liang Zhang Xiaoyu Zuo Xiujin Li 2021Chinese Journal of Chemical Engineering2021,34,8:5
4Effect of Cu promoter on Ni-based SBA-15 catalysts for partial oxidation of methane to syngas显示文摘A series of Ni/SBA-15 catalysts with 5wt% to 15wt% Ni content as well as a series of 12.5%Ni/Cu/SBA-15 catalysts with 1% to 10% copper content were prepared by the impregnation method. The catalytic performance for partial oxidation of methane was investigated in a continuous flow microreactor under atmospheric pressure. The textural and chemical properties of the catalysts were characterized by XRD,TEM,BET and H 2-TPR techniques. The results indicated that the catalysts modified with Cu promoter showed better performance than those without modification. For the 12.5%Ni/2.5%/Cu/SBA-15 catalyst,at 850 C the conversion of CH 4 reached 97.9% and the selectivity of CO and H 2 reached 98.0% and 96.0%,respectively. In XRD patterns of the Ni/Cu/SBA-15 catalyst with 7.5 to 10% Cu contents there were CuO characteristic peaks beside NiO characteristic peaks. The mesoporous structure of SBA-15 was retained in all of the catalysts. TPR analysis of the catalysts revealed that a strong interaction between Ni,Cu promoter and SBA-15 support may be existed. This interaction enhanced significantly the redox properties of the catalysts resulting in the higher catalytic activity.Fabien Habimana Xiujin Li Shengfu Ji Bao Lang Daoan Sun Chengyue Li 2009Journal of Natural Gas Chemistry2009,18,4:4
5The impact of genomic relatedness between populations on the genomic estimated breeding values显示文摘In genomic selection, prediction accuracy is highly driven by the size of animals in the reference population(RP).Combining related populations from different countries and regions or using a related population with large size of RP has been considered to be viable strategies in cattle breeding. The genetic relationship between related populations is important for improving the genomic predictive ability. In this study, we used 122 French bulls as test individuals. The genomic estimated breeding values(GEBVs) evaluated using French RP, America RP and Chinese RP were compared.The results showed that the GEBVs were in higher concordance using French RP and American RP compared with using Chinese population. The persistence analysis, kinship analysis and the principal component analysis(PCA) were performed for 270 French bulls, 270 American bulls and 270 Chinese bulls to interpret the results. All the analyses illustrated that the genetic relationship between French bulls and American bulls was closer compared with Chinese bulls. Another reason could be the size of RP in China was smaller than the other two RPs. In conclusion, using RP of a related population to predict GEBVs of the animals in a target population is feasible when these two populations have a close genetic relationship and the related population is large.Peipei Ma Ju Huang Weijia Gong Xiujin Li Hongding Gao Qin Zhang Xiangdong Ding Chonglong Wang 2018Journal of Animal Science and Biotechnology2018,9,4:3
6Effect of MgO promoter on Ni-based SBA-15 catalysts for combined steam and carbon dioxide reforming of methane显示文摘A series of Ni/SBA-15 catalysts with Ni contents ranging from 5 wt% to 15 wt%, as well as another series of 10%Ni/MgO/SBA-15 catalysts, in which the range of the MgO content was from 1 wt% to 7 wt%, were prepared, and their catalytic performances for the reaction of combined steam and carbon dioxide reforming of methane were investigated in a continuous flow microreactor. The structures of the catalysts were characterized using the XRD, H2-TPR and CO2-TPD techniques. The results indicated that the CO selectivity for this reaction was very close to 100%, and the H2/CO ratio of the product gas could be controlled by changing the H2O/CO2 molar ratio of the feed gas. The simultaneous and plentiful existing of steam and CO2 had a significant influence on the catalytic performance of the 10%Ni/SBA-15 catalyst without modification. After reacting at 850 °C for 120 h over this catalyst, the CH4 conversion dropped from 98% to 85%, and the CO2 conversion decreased from 86% to 53%. However, the 10%Ni/3%MgO/SBA-15 catalyst exhibited a much better catalytic performance, and after reacting for 620 h, the CO2 conversion over this catalyst dropped from 92% to around 77%, while the CH4 conversion was not decreased. Oxidation of the Ni0 species as well as carbon deposition during the reaction were the main reasons for the deactivation of the catalyst without modification. On the other hand, modification by the MgO promoter improved the dispersion of the Ni0 species, and enhanced the CO2 adsorption affinity which in turn depressed the occurring of carbon deposition, and thus retarded the deactivation process.Bingyao Huang Xiujin Li Shengfu Ji Bao Lang Fabien Habimana Chengyue Li 2008Journal of Natural Gas Chemistry2008,17,3:3
7Effect on anaerobic digestion performance of corn stover by freezing–thawing with ammonia pretreatment显示文摘In order to enhance the biomethane production from corn stover, choosing effective pretreatment is one of the necessary steps before starting anaerobic digestion(AD).This study was aimed to analyze the effectiveness of freezing–thawing with ammonia pretreatment on substance degradation and AD performance of corn stover.Three ammonia concentrations(2%, 4%, and 6%) with two different moisture contents(50% and 70%) were used to pretreat the corn stover at two temperatures(-20 ℃ and 20 ℃).The result showed that an optimum pretreatment condition for corn stover was at the temperature of -20 ℃, moisture content of 70% and ammonia concentration of 2%.Under the optimum pretreatment condition, the maximum biomethane yield reached 261 ml·(g VS)^(-1), which was 41.08% higher than that of the untreated.Under different pretreatment conditions,the highest loss of lignin at -20 ℃ with 2% ammonia concentration was 63.36% compared with the untreated.The buffer capacity of AD system was also improved after the freezing–thawing with ammonia pretreatment.Therefore, the freezing–thawing with ammonia pretreatment can be used to improve AD performance for corn stover.This study provides further insight for exploring an efficient freezing–thawing with ammonia pretreatment strategy to enhance AD performance for the practical application.Hairong Yuan Yanyan Lan Jialin Zhu Akiber Chufo Wachemo Xiujin Li Liang Yu 2019Chinese Journal of Chemical Engineering2019,27,1:3
8Enhancing anaerobic biogasification of corn stover through wet state NaOH pretreatment显示文摘Mingxia Zheng Xiujin Li Laiqing Li Xiaojin Yang Yanfeng He 2009Bioresource Technology2009,,21:2
9Performance of landfill leachate treatment system with disc-tube reverse osmosis units显示文摘Reverse osmosis system with the disc-tube mod-ule(DT-RO)was applied to treat landfill leachate on full scale at the Changshengqiao Sanitary Landfill,Chongqing City,China.In the first six-mouth operation phase,the treatment performance of DT-RO system had been excel-lent and stable.The removal rate of chemical oxygen demand(COD),total organic carbon(TOC),electrical con-ductivity(EC),and ammonia nitrogen(NH 3-N)reached 99.2–99.7%,99.2%,99.6%,and over 98%,respectively.The rejection of Ca^(2+),Ba^(2+),and Mg^(2+)was over 99.9%,respectively.Suspended solid(SS)was not detectedin prod-uct water.Effective methods had been adopted to control membrane fouling,of which chemical cleaning is of utmost importance to guarantee the long smooth operation of the DT-ROsystem.The DT-ROsystemiscleanedinturnswith Cleaner A and Cleaner C.At present,the 1st stage cleaning cycle by Cleaner A and Cleaner C is conducted every 100 and500 h,respectively,dependingonrawthewaterquality.Yanping LIU Xiujin LI Baozhen WANG Shuo LIU 2008Frontiers of Environmental Science & Engineering2008,2,1:2
10Effect of O_2 and H_2O on the tri-reforming of the simulated biogas to syngas over Ni-based SBA-15 catalysts显示文摘A series of Ni/SBA-15 catalysts with Ni contents from 7.5 wt% to 15 wt% were prepared by impregnation method.The effect of O2 and H2O on the combined reforming of the simulated biogas to syngas was investigated in a continuous flow fixed-bed micro-reactor.The stability of the catalyst was tested at 800 ?C.The results indicated that 10wt%Ni/SBA-15 catalyst exhibited the highest catalytic activities for the combined reforming of the simulated biogas to syngas.Under the reaction conditions of the feed gas molar ratios CH4/CO2/O2/H2O = 2/1/0.6/0.6,GHSV = 24000 ml gc?a1t h?1 and the reaction temperature T = 800 ?C,the conversions of CH4 and CO2 were 92.8% and 76.3%,respectively,and the yields of CO and H2 were 99.0% and 82.0%,respectively.The catalytic activities of the catalyst did not decrease obviously after 100 h reaction time on stream.Daoan Sun Xiujin Li Shengfu Ji Lingyan Cao 2010Journal of Natural Gas Chemistry2010,19,4:2
11Compositional changes of cottonseed hull substrate during P. ostreatus growth and the effects on the feeding value of the spent substrate显示文摘Xiujin Li Yunzhi Pang Ruihong Zhang 2001Bioresource Technology2001,,2:1
12Effects of different heating methods on the production of protein–lipid film显示文摘Long Lei Han Zhi Zhang Xiujin Ishitani Takasuke Li Zaigui 2007Journal of Food Engineering2007,,3:1
13Bortezomib in combination with dexamethasone and subsequent thalidomide for newly-diagnosed multiple myeloma: A Chinese experience显示文摘Weiyan Zheng Guoqing Wei Xiujin Ye Jingsong He Li Li Wenjun Wu Jimin Shi Jie Zhang Weijia Huang Wanzhuo Xie Yi Luo Xingkui Xue Maofang Lin He Huang Zhen Cai 2009Leukemia Research2009,,12:1
14Enhancing anaerobic biogasification of corn stover through wet state NaOH pretreatment 显示文摘MINGXIA ZHENG XIUJIN LI 2009Bioresource Technology2009,100,21:1
15Characteristics of dairy manure composting with rice straw显示文摘Li Xiujin Zhang Ruihong Pang Yunzhi 2008Bioresource Technology2008,99,:1
16Enhancing anaerobic biogasification of corn stover through wet stateNaOH pretreatment显示文摘Zheng Mingxia Li Xiujin Li Laiqing 2009Bioresource Technology2009,100,21:1
17Lower temperature hydrothermal pretreatment improves the anaerobic digestion performance of spent cow bedding显示文摘The anaerobic digestion(AD)performance of spent cow bedding was investigated with different hydrothermal pretreatment(HP)conditions.Spent cow bedding was pretreated with low temperatures(50,70,and 90℃)and different pretreatment times(2-72 h)with ammonia and without ammonia.The results showed that spent cow bedding was a good raw material for AD.After pretreatment,the concentration of volatile fatty acids(VFAs)in the group of hydrothermal pretreatments with ammonia(HPA)was higher than that in the HP group at the same pretreatment temperature and time.The optimal pretreatment condition was achieved with an HPA of 50℃ holding for 72 h.At the optimal condition,the highest concentration of VFAs was 1.58-10.85 times higher than that of the other pretreated groups.The highest hemicellulose and lignin removal rates were 58.07%and 10.32%,respectively.The highest methane yield was 163.0 ml(g· VS)^(-1),which was 48.9%higher than that of the untreated group.The VFAs,pH,and reducing sugars showed positive relationships with the methane yield.Therefore,HP at low temperature can enhance the AD performance of spent cow bedding.Xitong Wang Hairong Yuan Xiaocong Song Xiujin Li Xiaoyu Zuo 2021Chinese Journal of Chemical Engineering2021,34,11:1
18En- hancing anaerobic biogasification of corn stover through wet state NaOH pretreatment显示文摘MINGXIA ZHENG XIUJIN LI LAIQING LI l 2009Bioresource Technol- ogy2009,100,21:1
19CO2 reforming of methane to syngas over Ni/SBA- 15/FeCrAl 显示文摘Kai Wang Xiujin Li Shengfu Ji 2007Studies in Surface Science and Catalysis2007,167,:1
20Improving biodegradability and biogas production of corn stover through sodium hydroxide solid state pretreatment 显示文摘PANG YUNZHI LIU YANPING LI XIUJIN 2008Energy & Fuels2008,22,4:1
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