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Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 985-995 doi: 10.1007/s11705-021-2126-y

Abstract: The high contents of nitrogen-containing organic compounds in biocrude obtained from hydrothermal liquefactionIn summary, a brief reaction map was proposed to describe the nitrogen pathway during microalgae hydrothermalliquefaction.

Keywords: microalgae     hydrothermal liquefaction     biocrude     nitrogen distribution    

Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1719-8

Abstract: A two-step hydrothermal treatment method was adopted in this study to produce humic acid from corn stalksIn the first step of the process, hydrochar was prepared at different hydrothermal temperatures and pHchemical properties were then analyzed, and the hydrochar-derived humic acids were produced under alkaline hydrothermalwere as follows: 1) production in the hydrochar preparation stage, and 2) increment under the alkaline hydrothermalThis study provides an important reference for the preparation of suitable hydrochar with high hydrothermal

Keywords: Biowaste     Hydrochar     Humic acid     Hydrothermal parameter     Unsaturation    

Temporal changes in the characteristics of algae in Dianchi Lake, Yunnan Province, China

Ruixia SHEN,Chunyan TIAN,Zhidan LIU,Yuanhui ZHANG,Baoming LI,Haifeng LU,Na DUAN

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 266-275 doi: 10.15302/J-FASE-2015064

Abstract: Hydrothermal liquefaction allows a promising and direct conversion of algal biomass into biocrude oil

Keywords: algal blooms     temporal change     biochemical property     biodiversity     hydrothermal liquefaction    

A step forward towards a comprehensive framework for assessing liquefaction land damage vulnerability

Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD, Wen-Jing GU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1476-1491 doi: 10.1007/s11709-020-0670-z

Abstract: The unprecedented liquefaction-related land damage during earthquakes has highlighted the need to developa model that better interprets the liquefaction land damage vulnerability (LLDV) when determining whetherliquefaction is likely to cause damage at the ground’s surface.and liquefaction land damage potentials in one model.The BBN-based LLDV model is developed by integrating multi-related factors of seismic soil liquefaction

Keywords: Bayesian belief network     liquefaction-induced damage potential     cone penetration test     soil liquefaction    

Liquefaction prediction using support vector machine model based on cone penetration data

Pijush SAMUI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 72-82 doi: 10.1007/s11709-013-0185-y

Abstract: A support vector machine (SVM) model has been developed for the prediction of liquefaction susceptibilityThis paper examines the potential of SVM model in prediction of liquefaction using actual field coneUsing cone resistance ( ) and cyclic stress ratio ( ), model has been developed for prediction of liquefactionthe model, requiring only two parameters ( and maximum horizontal acceleration ), for prediction of liquefactionThe study shows that SVM can be used as a practical tool for prediction of liquefaction potential, based

Keywords: earthquake     cone penetration test     liquefaction     support vector machine (SVM)     prediction    

Evaluation of liquefaction-induced lateral displacement using Bayesian belief networks

Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 80-98 doi: 10.1007/s11709-021-0682-3

Abstract: Liquefaction-induced lateral displacement is responsible for considerable damage to engineered structuresTherefore, an accurate estimation of lateral displacement in liquefaction-prone regions is an essentialThis paper presents a novel probabilistic framework for evaluating liquefaction-induced lateral displacement

Keywords: Bayesian belief network     seismically induced soil liquefaction     interpretive structural modeling     lateral    

Liquefaction assessment using microtremor measurement, conventional method and artificial neural network

Sadegh REZAEI,Asskar Janalizadeh CHOOBBASTI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 3,   Pages 292-307 doi: 10.1007/s11709-014-0256-8

Abstract: Recent researchers have discovered microtremor applications for evaluating the liquefaction potentialIn the present research the liquefaction potential has been reviewed by utilization of microtremor measurementfundamental frequency and amplification factor, the value of vulnerability index ( ) was calculated and the liquefactionRegarding the results of these three methods, it was concluded that the threshold value of liquefactionanalysis performed in this research it is concluded that microtremors have the capability of assessing the liquefaction

Keywords: liquefaction     microtremor     vulnerability index     artificial neural networks (ANN)     microzonation    

Regulation of radicals by hydrogen-donor solvent in direct coal liquefaction

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1689-1699 doi: 10.1007/s11705-022-2186-7

Abstract: Radicals are important intermediates in direct coal liquefaction.

Keywords: direct coal liquefaction     hydrogen-donor solvent     induced pyrolysis     radical mechanism     density functional    

Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 605-613 doi: 10.1007/s11705-019-1841-0

Abstract: In the present work, ball milling was applied for the pretreatment of lignocellulose to obtain high conversion and bio-oil yield in supercritical ethanol. Ball milling substantially decreased the crystallinity and particle size of lignocellulose, thereby improving its accessibility in ethanol solvent. An increased bio-oil yield of 59.2% was obtained for the ball milled camphorwood sawdust at 300°C, compared with 39.6% for the original lignocellulose. Decreased crystallinity significantly benefited the conversion of the cellulose component from 60.8% to 91.7%, and decreased particle size was beneficial for the conversion of all components. The obtained bio-oil had a high phenolic content, as analyzed by gas chromatography-mass spectrometry. Methoxylation and retro-aldol condensation were observed during alcoholysis, and the reaction pathways of lignocellulose in supercritical ethanol were attributed to the action of free radicals.

Keywords: ball milling     lignocellulose     supercritical ethanol     liquefaction     bio-oil    

ASSESSMENT OF HEAVY METALS IN HYDROCHAR PRODUCED BY HYDROTHERMAL CARBONIZATION OF DAIRY MANURE

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 437-447 doi: 10.15302/J-FASE-2023507

Abstract:

● Content of heavy metals in hydrochar varies considerably, from 50% to 100%.

Keywords: heavy metals     dairy manure     hydrochar     hydrothermal carbonization     waste management    

Review on the design and optimization of hydrogen liquefaction processes

Liang YIN, Yonglin JU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 530-544 doi: 10.1007/s11708-019-0657-4

Abstract: However, hydrogen liquefaction is one of the most energy-intensive industrial processes.In this paper, the detailed progress of design and optimization for hydrogen liquefaction in recent yearsThen, based on the refrigeration cycles, the hydrogen liquefaction processes are divided into two parts, namely precooled liquefaction process and cascade liquefaction process.Among the existing technologies, the SEC of most hydrogen liquefaction processes is limited in the range

Keywords: hydrogen liquefaction     energy consumption     efficiency     optimization    

Research progress on hydrothermal dissolution and hydrolysis of lignocellulose and lignocellulosic waste

Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 2,   Pages 151-161 doi: 10.1007/s11783-013-0607-z

Abstract: Hydrothermal process is a promising technique because of its efficiency to break down the lignocellulosicThis paper critically reviewed the progress done in the research and development of the hydrothermal

Keywords: lignocellulosic waste     hydrothermal conversion     separate dissolution     asynchronous hydrolysis     mechanism    

Power-to-chemicals: sustainable liquefaction of food waste with plasma-electrolysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 594-605 doi: 10.1007/s11705-022-2255-y

Abstract: , we report a new and sustainable plasma electrolysis biorefinery route for the rapid and efficient liquefactionK elements was greater than 81%, which is significantly higher than using the traditional oil bath liquefaction

Keywords: plasma electrolysis     food waste     liquefaction     resource recovery    

Underlying mechanism of the hydrothermal instability of Cu

Nadeen Al-Janabi,Abdullatif Alfutimie,Flor R. Siperstein,Xiaolei Fan

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 103-107 doi: 10.1007/s11705-015-1552-0

Abstract: Water induced decomposition of Cu (BTC) (BTC= benzene-1,3,5-tricarboxylate) metal-organic framework (MOF) was studied using dynamic water vapour adsorption. Small-angle X-ray scattering, Fourier transform infrared spectroscopy and differential scanning calorimetry analyses revealed that the underlying mechanism of Cu (BTC) MOF decomposition under humid streams is the interpenetration of water molecules into Cu-BTC coordination to displace organic linkers (BTC) from Cu centres.

Keywords: hydrothermal stability     metal-organic framework (MOF)     open metal sites (OMSs)     dynamic water vapour adsorption    

Ti incorporation in MCM-41 mesoporous molecular sieves using hydrothermal synthesis

Shengping WANG, Changqing MA, Yun SHI, Xinbin MA

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 95-103 doi: 10.1007/s11705-014-1405-2

Abstract: Titanium-containing mesoporous materials (Ti-MCM-41) were obtained by hydrothermal synthesis.

Keywords: Ti-MCM-41     mesoporous molecular sieve     acid sites     transesterification     hydrothermal synthesis    

Title Author Date Type Operation

Nitrogen distribution in the products from the hydrothermal liquefaction of sp. and sp.

Journal Article

Two-step hydrothermal conversion of biomass waste to humic acid using hydrochar as intermediate

Journal Article

Temporal changes in the characteristics of algae in Dianchi Lake, Yunnan Province, China

Ruixia SHEN,Chunyan TIAN,Zhidan LIU,Yuanhui ZHANG,Baoming LI,Haifeng LU,Na DUAN

Journal Article

A step forward towards a comprehensive framework for assessing liquefaction land damage vulnerability

Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD, Wen-Jing GU

Journal Article

Liquefaction prediction using support vector machine model based on cone penetration data

Pijush SAMUI

Journal Article

Evaluation of liquefaction-induced lateral displacement using Bayesian belief networks

Mahmood AHMAD, Xiao-Wei TANG, Jiang-Nan QIU, Feezan AHMAD

Journal Article

Liquefaction assessment using microtremor measurement, conventional method and artificial neural network

Sadegh REZAEI,Asskar Janalizadeh CHOOBBASTI

Journal Article

Regulation of radicals by hydrogen-donor solvent in direct coal liquefaction

Journal Article

Ball milling promoted direct liquefaction of lignocellulosic biomass in supercritical ethanol

Chunyan Yang, Xiaoliang Yuan, Xueting Wang, Kejing Wu, Yingying Liu, Changjun Liu, Houfang Lu, Bin Liang

Journal Article

ASSESSMENT OF HEAVY METALS IN HYDROCHAR PRODUCED BY HYDROTHERMAL CARBONIZATION OF DAIRY MANURE

Journal Article

Review on the design and optimization of hydrogen liquefaction processes

Liang YIN, Yonglin JU

Journal Article

Research progress on hydrothermal dissolution and hydrolysis of lignocellulose and lignocellulosic waste

Yan ZHAO, Wenjing LU, Jiajun CHEN, Xiangfeng ZHANG, Hongtao WANG

Journal Article

Power-to-chemicals: sustainable liquefaction of food waste with plasma-electrolysis

Journal Article

Underlying mechanism of the hydrothermal instability of Cu

Nadeen Al-Janabi,Abdullatif Alfutimie,Flor R. Siperstein,Xiaolei Fan

Journal Article

Ti incorporation in MCM-41 mesoporous molecular sieves using hydrothermal synthesis

Shengping WANG, Changqing MA, Yun SHI, Xinbin MA

Journal Article