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Influence of HS and NH on biogas dry reforming using Ni catalyst: a study on single and synergetic effect

《环境科学与工程前沿（英文）》 2023年 第17卷 第3期 doi: 10.1007/s11783-023-1632-1

摘要：

● NH3 in biogas had a slight inhibitory effect on dry reforming.

关键词： Biogas     Dry reforming     Sulfur poisoning     Ammonia     Synergetic effect     Hydrogen    

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An efficient technique for improving methanol yield using dual CO

Yang Su, Liping Lü, Weifeng Shen, Shun’an Wei

《化学科学与工程前沿（英文）》 2020年 第14卷 第4期   页码 614-628 doi: 10.1007/s11705-019-1849-5

摘要： Abstract Steam methane reforming (SMR)-based methanol synthesis plants utilizing a single CO2 feed represent one of the predominant technologies for improving methanol yield and CO2 utilization. However, SMR alone cannot achieve full CO2 utilization, and a high water content accumulates if CO2 is only fed into the methanol reactor. In this study, a process integrating SMR with dry methane reforming to improve the conversion of both methane and CO2 is proposed. We also propose an innovative methanol production approach in which captured CO2 is introduced into both the SMR process and the recycle gas of the methanol synthesis loop. This dual CO2 feed approach aims to optimize the stoichiometric ratio of the reactants. Comparative evaluations are carried out from a techno-economic point of view, and the proposed process is demonstrated to be more efficient in terms of both methanol productivity and CO2 utilization than the existing stand-alone natural gas-based methanol process.

关键词： methanol synthesis     CO2 utilization     dry methane reforming     steam methane reforming     process design    

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FeNi/Al-Ce-O催化剂上的乙烷干重整——组成诱导的金属-载体强相互作用 Article

张涛, 刘志成, 叶迎春, 王毓, 杨贺勤, 高焕新, 杨为民

《工程（英文）》 2022年 第18卷 第11期   页码 173-185 doi: 10.1016/j.eng.2021.11.027

摘要：

在页岩气革命的背景下，乙烷干重整因在化学原料生产和碳减排方面的潜力而备受关注。本研究通过X射线光电子能谱、H2程序升温还原和能量散射X射线谱等手段，揭示了一种组成诱导的金属-载体强相互作用。氧化铈中Al的引入增强了金属与载体之间的相互作用，显著影响了Al-Ce-O载体表面FeNi活性组分的分散度，从而提升了FeNi/Al-Ce-O催化剂的乙烷干重整反应性能。随着载体中Al含量的增加，负载FeNi催化剂的乙烷和二氧化碳的转化率与转换频率（TOF）以及一氧化碳选择性和产率都呈现先增大后减小的趋势，与载体的理论有效表面积（TESA）的变化趋势相同。其中，Al含量为50%的FeNi/Ce-Al0.5催化剂在873 K下具有最好的乙烷干重整反应性能。结合原位傅里叶变换红外光谱（FTIR）分析观察到，Al的引入不仅增加了表面Ce3+和氧空位的含量，同时也促进了表面活性组分的分散，提升了负载FeNi催化剂的乙烷干重整性能。

关键词： 乙烷干重整     金属-载体强相互作用     二氧化碳     氧化铈     氧空位     反应机理    

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Stability of Ni/SiO

Bettina Stolze,Juliane Titus,Stephan A. Schunk,Andrian Milanov,Ekkehard Schwab,Roger Gläser

《化学科学与工程前沿（英文）》 2016年 第10卷 第2期   页码 281-293 doi: 10.1007/s11705-016-1568-0

摘要： Ni/SiO -ZrO catalysts with Ni loadings of 1 to 13 wt-% were prepared, characterized by elemental analysis, X-ray diffraction, N sorption, temperature programmed oxidation, temperature programmed reduction, and tested for their activity and stability in the dry reforming of methane with carbon dioxide at 850 °C, gas hourly space velocity of 6000 and 1800 h and atmospheric pressure. The SiO -ZrO support as obtained through a simple and efficient sol-gel synthesis is highly porous ( = 90 m ·g , = 4.4 nm) with a homogeneously distributed Si-content of 3 wt-%. No loss of Si or formation of monoclinic ZrO , even after steaming at 850 °C for 160 h, was detectable. The catalyst with 5 wt-% Ni loading in its fully reduced state is stable over 15?h on-stream in the dry reforming reaction. If the catalyst was not fully reduced, a reduction during the early stages of dry reforming is accompanied by the deposition of up to 44 mg·g carbon as shown by experiments in a magnetic suspension balance. Rapid coking occurs for increased residence times and times-on-stream starting at 50 h. The Ni loading of 5 wt-% on SiO -ZrO was shown to provide an optimal balance between activity and coking tendency.

关键词： Ni/SiO2-ZrO2     synthesis gas     dry reforming     coking     steaming    

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南海富碳天然气直接利用技术发展研究

吴青,于广欣,汤晓玲,张亮亮,郑裕国

《中国工程科学》 2021年 第23卷 第4期   页码 172-181 doi: 10.15302/J-SSCAE-2021.04.020

摘要：

我国南海富碳天然气具有 CO2 含量高的特点，高效开发和精准利用南海富碳天然气资源，有助于积极应对气候变化，实现“碳达峰、碳中和”目标。本文分析了南海富碳天然气直接利用的需求和价值，概括了富碳天然气直接利用的发展现状；重点论述了富碳天然气 CO2-CH4 干重整技术、富碳天然气制甲醇一体化技术、富碳天然气 CO2 加氢制液体燃料技术、富碳天然气直接制精细化工品技术等的实施过程与应用特征。研究建议，南海富碳天然气资源有其特殊性，应加强研究并实施重点攻关，建立海洋富碳天然气综合利用技术工程化平台，与非化石能源风能、太阳能及核能紧密融合发展，推进南海富碳天然气产业的可持续发展；针对性布局南海富碳天然气产业，加强富碳天然气的开发与利用力度，尽快实现转型升级；建立“产学研用”战略联盟，保障产业与技术合作需求。

关键词： 南海     富碳天然气     干重整     CO2 加氢     液体燃料     精细化工    

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Application of cable-supported spatial grid in dry coal shed

XING Haidong, HAO Jiping, XU Guobin

《结构与土木工程前沿（英文）》 2008年 第2卷 第1期   页码 26-29 doi: 10.1007/s11709-008-0008-8

摘要： This paper presented a new structural style cable-supported spatial grid, which was applied in large span dry coal sheds. The influence of configuration of cable on the force of cable and beam, the ratio of beam force to cable force and the deflection of span was investigated, and a rational configuration of cable was obtained. The results show that the cable-supported spatial grid can maximize the use of material strength, and have the advantages of low usage of steel, large span and sufficient headroom.

关键词： dry     material strength     low     rational configuration     influence    

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promotes macrophage pyroptosis by driving the glycolytic reprogramming of corneal epithelial cells in dry

《医学前沿（英文）》 2023年 第17卷 第4期   页码 781-795 doi: 10.1007/s11684-023-0986-x

摘要： Tear film hyperosmolarity plays a core role in the development of dry eye disease (DED) by mediating the disruption of ocular surface homeostasis and triggering inflammation in ocular surface epithelium. In this study, the mechanisms involving the hyperosmolar microenvironment, glycolysis mediating metabolic reprogramming, and pyroptosis were explored clinically, in vitro, and in vivo. Data from DED clinical samples indicated that the expression of glycolysis and pyroptosis-related genes, including PKM2 and GSDMD, was significantly upregulated and that the secretion of IL-1β significantly increased. In vitro, the indirect coculture of macrophages derived from THP-1 and human corneal epithelial cells (HCECs) was used to discuss the interaction among cells. The hyperosmolar environment was found to greatly induce HCECs’ metabolic reprogramming, which may be the primary cause of the subsequent inflammation in macrophages upon the activation of the related gene and protein expression. 2-Deoxy-d-glucose (2-DG) could inhibit the glycolysis of HCECs and subsequently suppress the pyroptosis of macrophages. In vivo, 2-DG showed potential efficacy in relieving DED activity and could significantly reduce the overexpression of genes and proteins related to glycolysis and pyroptosis. In summary, our findings suggested that hyperosmolar-induced glycolytic reprogramming played an active role in promoting DED inflammation by mediating pyroptosis.

关键词： dry eye disease     glycolytic reprogramming     pyroptosis     inflammation     2-DG    

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Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 649-657 doi: 10.1007/s11783-012-0426-7

摘要： A stormwater wetland treating non-point source pollution (NPS) from a 64 ha agricultural watershed was monitored over a period of five months. The results indicated that pH and dissolved oxygen (DO) were increased in the wetland due to the algal growth. The highest total suspended solids (TSS) concentration was observed in the aeration pond due to the resuspension of solids, decreased in the wetland. The respective decreases in total nitrogen (TN) and total kjeldahl nitrogen (TKN) were 15.9% and 28.7% on passing through the wetland. The nitrate and ammonia were increased by 45.4% and decreased by 79.9%, respectively. These variations provided strong evidence for the existence of nitrification. The total phosphorus (TP) and phosphate had respective reductions of 52.3% and 58.2% over the wetland. The total chemical oxygen demand (TCOD) and soluble chemical oxygen demand (SCOD) were also decreased. Generally, the TN, TP and phosphate removal efficiencies were positive. These positive removal efficiencies were mainly due to microbial activities, uptake by plants, and chemical precipitation at high pH. Negative removal efficiencies can be caused by continuous rainfall activities, with short antecedent dry days (ADDs) and unstable hydraulic conditions, some other biogeochemical transformations and algal growth also being important parameters.

关键词： constructed stormwater wetland     dry days     nitrification and denitrification     pollutants characteristic    

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Acupuncture for the management of dry eye disease

《医学前沿（英文）》 2022年 第16卷 第6期   页码 975-983 doi: 10.1007/s11684-022-0923-4

摘要： The effectiveness of using acupuncture for dry eye disease (DED) is controversial. Thus, this systematic review investigated the effectiveness and feasibility of using acupuncture for DED in accordance with the 2020 PRISMA statement. The outcomes of interests were (1) to evaluate the efficacy of acupuncture in improving the ocular surface disease index (OSDI), Schirmer I test score, and tear breakup time from baseline to the last follow-up; (2) to determine possible complications of using acupuncture; and (3) to investigate the superiority of acupuncture over other commonly used treatments for DED. Data from 394 patients were collected. Results showed that acupuncture significantly prolonged the tear breakup time (P < 0.0001), significantly increased the Schirmer I test score ( P < 0.0001), and significantly reduced the OSDI ( P < 0.0001) from baseline to the last follow-up. Compared with the control group, the acupuncture group had significantly greater Schirmer I test score ( P < 0.0001), significantly longer tear breakup time ( P = 0.0004), and significantly lower OSDI (P = 0.002). These results suggest that acupuncture is effective and feasible in improving symptoms and signs of DED. No severe adverse effects of acupuncture were observed.

关键词： dry eye disease     xerophthalmus     acupuncture    

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Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

《结构与土木工程前沿（英文）》 2020年 第14卷 第3期   页码 690-705 doi: 10.1007/s11709-020-0615-6

摘要： The embedded cantilever retaining walls are often required for excavation to construct the underground facilities. Significant numbers of numerical and experimental studies have been performed to understand the behavior of embedded cantilever retaining walls under static condition. However, very limited studies have been conducted on the behavior of embedded retaining walls under seismic condition. In this paper, the behavior of a small scale model embedded cantilever retaining wall in dry and saturated sand under seismic loading condition is investigated by shake table tests in the laboratory and numerically using software FLAC2D. The embedded cantilever walls are subjected to sinusoidal dynamic motions. The behaviors of the cantilever walls in terms of lateral displacement and bending moment are studied with the variation of the two important design parameters, peak amplitude of the base motions and excavation depth. The variation of the pore water pressures within the sand is also observed in the cases of saturated sand. The maximum lateral displacement of a cantilever wall due to seismic loading is below 1% of the total height of the wall in dry sand, but in case of saturated sand, it can go up to 12.75% of the total height of the wall.

关键词： embedded cantilever wall     shake table test     FLAC2D     seismic loading     saturated and dry sand    

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Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

《化学科学与工程前沿（英文）》 2021年 第15卷 第1期   页码 60-71 doi: 10.1007/s11705-020-1975-0

摘要： Thermodynamic chemical equilibrium analysis of steam reforming of glycerol (SRG) for selective hydrogen production was performed based on the Gibbs free energy minimisation method. The ideal SRG reaction (C H O +3H O→3CO +7H ) and a comprehensive set of side reactions during SRG are considered for the formation of a wide range of products. Specifically, this work focused on the analysis of formation of H CO , CO and CH in the gas phase and determination of the carbon free region in SRG under the conditions at atmospheric pressure, 600€K–1100€K and 1.013 × 10 –1.013 × 10 Pa with the steam-to-glycerol feed ratios (SGFR) of 1:5–10. The reaction conditions which favoured SRG for H production with minimum coke formation were identifies as: atmospheric pressure, temperatures of 900€K–1050€K and SGFR of 10:1. The influence of using the inert carrier gas (i.e., N ) in SRG was studied as well at atmospheric pressure. Although the presence of N in the stream decreased the partial pressure of reactants, it was beneficial to improve the equilibrium yield of H . Under both conditions of SRG (with/without inert gas), the CH production is minimised, and carbon formation was thermodynamically unfavoured at steam rich conditions of SGFR>5:1.

关键词： steam reforming of glycerol     H2     N2     carbon deposition     thermodynamic analysis     Gibbs free energy minimisation    

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Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

《化学科学与工程前沿（英文）》 2015年 第9卷 第3期   页码 381-385 doi: 10.1007/s11705-015-1534-2

摘要： Dry yeast cells (DYC) were used as a cheap nitrogen source to replace expensive yeast extract (YE) for L-lactic acid production by thermophilic . Cassava starch (200 g·L ) was converted to L-lactic acid by simultaneous saccharification and fermentation using WCP10-4 at 50 °C in the presence of 20 g·L of DYC, giving 148.1 g·L of L-lactic acid at 27 h with a productivity of 5.5 g·L ·h and a yield of 92%. In contrast, 154.4 g·L of lactic acid was produced at 24 h with a productivity of 6.4 g·L ·h and a yield of 96% when equal amount of YE was used under the same conditions. Use of pre-autolyzed DYC at 50 °C for overnight slightly improved the lactic acid titer (154.5 g·L ) and productivity (7.7 g·L ·h ) but gave the same yield (96%).

关键词： L-lactic acid     thermophilic strain     Bacillus coagulans     dry yeast cells     autolysis     fermentation    

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Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

《能源前沿（英文）》 2022年 第16卷 第3期   页码 492-501 doi: 10.1007/s11708-021-0721-8

摘要： Catalytic steam reforming is a promising route for tar conversion to high energy syngas in the process of biomass gasification. However, the catalyst deactivation caused by the deposition of residual carbon is still a major challenge. In this paper, a modified Ni-based Ni-Co/Al O -CaO (Ni-Co/AC) catalyst and a conventional Ni/Al O (Ni/A) catalyst were prepared and tested for tar catalytic removal in which toluene was selected as the model component. Experiments were conducted to reveal the influences of the reaction temperature and the ratio between steam to carbon on the toluene conversion and the hydrogen yield. The physicochemical properties of the modified Ni-based catalyst were determined by a series of characterization methods. The results indicated that the Ni-Co alloy was determined over the Ni-Co/AC catalyst. The doping of CaO and the presence of Ni-Co alloy promoted the performance of toluene catalytic dissociation over Ni-Co/AC catalyst compared with that over Ni/A catalyst. After testing in steam for 40 h, the carbon conversion over Ni-Co/AC maintained above 86% and its resistance to carbon deposition was superior to Ni/A catalyst.

关键词： catalytic steam reforming     tar model compound     Ni-based catalyst     carbon resistance    

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Current status of municipal wastewater treatment plants in North-east China: implications for reforming

《环境科学与工程前沿（英文）》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1673-5

摘要：

● The performance and costs of 20 municipal WWTPs were analyzed.

关键词： Low temperature     Municipal WWTPs     Cold region     Electricity consumption     Nitrogen removal    

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Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

《环境科学与工程前沿（英文）》 2014年 第8卷 第6期   页码 863-870 doi: 10.1007/s11783-013-0618-9

摘要： Combustion-generated hydrogen chloride (HCl) is considered to be a very hazardous acid gaseous pollutant. This paper presents a laboratory study on the dry adsorption of HCl. The experiments were conducted in a dual-layer granular bed filter, at gas temperatures of 500°C–700°C and (Ca)/ (Cl)molar ratios of 1.0–5.0 using the silver nitrate titration method by dry adsorbent powders Ca(OH) . Mainly, the adsorption efficiency of HCl and utilization efficiency of Calcium were studied, by varying relevant factors including (Ca)/ (Cl), temperature, feeding method, water vapor and CO . With a relatively higher HCl concentration of 1000 ppm, the experimental results revealed that 600°C may be the optimum temperature for HCl adsorption when optimum (Ca)/ (Cl) was 2.5 in our tests. The results also demonstrated that the feeding at a constant pressure was more effective, and the HCl adsorption efficiency could rapidly reach over 90% with (Ca)/ (Cl) = 2.5 at 600°C. Furthermore, the HCl adsorption efficiency was found to be slightly promoted by water vapor, while could be impeded by CO , and the utilization efficiency of calcium could be up to 74.4% without CO , while was only 36.8% with CO when (Ca)/ (Cl) was 2.5 at 600°C.

关键词： acid gas HCl     Ca(OH)2     dry adsorption     high temperature     dual-layer granular bed filter    

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标题 作者 时间 类型 操作

Influence of HS and NH on biogas dry reforming using Ni catalyst: a study on single and synergetic effect

期刊论文

An efficient technique for improving methanol yield using dual CO

Yang Su, Liping Lü, Weifeng Shen, Shun’an Wei

期刊论文

FeNi/Al-Ce-O催化剂上的乙烷干重整——组成诱导的金属-载体强相互作用

张涛, 刘志成, 叶迎春, 王毓, 杨贺勤, 高焕新, 杨为民

期刊论文

Stability of Ni/SiO

Bettina Stolze,Juliane Titus,Stephan A. Schunk,Andrian Milanov,Ekkehard Schwab,Roger Gläser

期刊论文

南海富碳天然气直接利用技术发展研究

吴青,于广欣,汤晓玲,张亮亮,郑裕国

期刊论文

Application of cable-supported spatial grid in dry coal shed

XING Haidong, HAO Jiping, XU Guobin

期刊论文

promotes macrophage pyroptosis by driving the glycolytic reprogramming of corneal epithelial cells in dry

期刊论文

Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

期刊论文

Acupuncture for the management of dry eye disease

期刊论文

Seismic behavior of cantilever wall embedded in dry and saturated sand

Sanku KONAI, Aniruddha SENGUPTA, Kousik DEB

期刊论文

Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

期刊论文

Use of dry yeast cells as a cheap nitrogen source for lactic acid production by thermophilic

Kim Yng Ooi, Jin Chuan Wu

期刊论文

Steam reforming of toluene as a tar model compound with modified nickel-based catalyst

Omeralfaroug KHALIFA, Mingxin XU, Rongjun ZHANG, Tahir IQBAL, Mingfeng LI, Qiang LU

期刊论文

Current status of municipal wastewater treatment plants in North-east China: implications for reforming

期刊论文

Laboratory study on high-temperature adsorption of HCl by dry-injection of Ca(OH)

Junjun TAN,Guohua YANG,Jingqiao MAO,Huichao DAI

期刊论文