نتایج جستجو برای: eval vi pyrolysis

تعداد نتایج: 55702  

Journal: :International Journal of Earth Sciences 2023

Abstract In this study, we combined the geochemical characteristics based on Rock-Eval pyrolysis and gas chromatography – mass spectrometry (GC–MS) results with facies analysis. These surveys were conducted within grey to black claystones/mudstones intervals of Podil’tsi Kokhanivka formations, related Pliensbachian Toarcian–Bathonian ages, respectively. The revealed that Formation contains mixe...

Journal: :Minerals 2023

The Taranaki Basin in New Zealand presents the most promising territory for strategies of hydrocarbon exploration and development. This basin contains multiple source rock levels its sedimentary successions formed during syn- post-rift periods. deepest rocks, found Rakopi Formation, were deposited deltaic to deep marine environments consist gas-prone coal organic-rich mudstone lithofacies. Howe...

Journal: :Waste Management 2021

Sulfur (S) is an abundant and redox-active element in urban wastewater systems plays a critical role both the sludge treatment processes. This study comparatively characterized transformation of S several closely associated metals (Cu, Zn, Fe) during pyrolysis (250 to 750 °C) hydrothermal carbonization (HTC, 150 275 treatments sewage sludge. S, Fe, Cu K-edge X-ray absorption spectroscopy was ap...

2014
Chih-Chun Kung Bruce A. McCarl Chi-Chung Chen

Taiwan suffers from energy insecurity and the threat of potential damage from global climate changes. Finding ways to alleviate these forces is the key to Taiwan's future social and economic development. This study examines the economic and environmental impacts when ethanol, conventional electricity and pyrolysis-based electricity are available alternatives. Biochar, as one of the most importa...

2015
JOANNA CZARNOCKA Joanna Czarnocka

The method of processing biomass of various kinds by microwave-assisted pyrolysis has been presented. The fast pyrolysis process, characterized by rapid heating of the feedstock in the absence of oxygen and rapid cooling of the volatile intermediate reaction products, is one of attractive liquid biofuel production methods. However, the pyrolysis still requires improvements as regards the proces...

2017
Aïda Ben Hassen Trabelsi Amina Ghrib Kaouther Zaafouri Athar Friaa Aymen Ouerghi Slim Naoui Habib Belayouni

Solar dried sewage sludge (SS) conversion by pyrolysis and gasification processes has been performed, separately, using two laboratory-scale reactors, a fixed-bed pyrolyzer and a downdraft gasifier, to produce mainly hydrogen-rich syngas. Prior to SS conversion, solar drying has been conducted in order to reduce moisture content (up to 10%). SS characterization reveals that these biosolids coul...

Journal: :Bioresource technology 2014
Andrei Veksha Waheed Zaman David B Layzell Josephine M Hill

The influence of KOH addition and air pretreatment on co-pyrolysis (600 °C) of a mixture of bio-oil and biomass (aspen wood) was investigated with the goal of increasing biochar yield. The bio-oil was produced as a byproduct of the pyrolysis of biomass and recycled in subsequent runs. Co-pyrolysis of the biomass with the recycled bio-oil resulted in a 16% mass increase in produced biochar. The ...

2015
Qiyu Chen Takumi Endo Qingyue Wang

Microcrystalline cellulose (MCC) samples pretreated by ionic liquid (ILs)H2O mixtures were studied for application in a pyrolysis process. A 1-ethyl3-methylimidazolium methanesulfonate [Emim][MeSO3]-H2O mixture with solid acid catalyst NafionNR50 was used in the pretreatment process. A lower amount of hydrogen bonding between neighboring pretreated MCC chains resulted from a less ordered cellul...

2012
C. SAIZ-JIMENEZ

In a previous study, selective degradation of carbohydrates versus lignin in buried woods was demonstrated by non-destructive spectroscopy (C NMR) and destructive wet chemical methods (acid hydrolysis and alkaline CuO oxidation). In this paper, spruce, alder and oak woods deposited in coastal sediments and their recent equivalents are characterized by pyrolysis-mass spectrometry and pyrolysis-g...

Journal: :Pakistan journal of scientific and industrial research 2021

By using total organic carbon (TOC) and Rock-Eval pyrolysis analysis measurements, the hydrocarbon source rock potential of Chichali Samana Suk formations found in subsurface Panjpir oilfield Punjab platform located eastern part middle Indus Basin was investigated. Twenty two core samples were collected from producing well. The analysed formation contains TOC ranging between 0.99-4.61 wt.% havi...

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