MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Organic components of lignite
Characterization of organic substances in lignite before and
2018年1月2日 A lignite sample was collected from the middle Miocene coalbearing Soya Formation in the Tempoku Coalfield in Horonobe, northern Hokkaido, Japan Total organic 2024年5月1日 The structure of lignite is commonly believed to consist of fused aromatic rings (FARs) with 1 and 2 rings and short methylene chains, with few FARs with 3 or more rings and Novel insights into the molecular structure of lignite and its 2024年6月11日 The results showed that cyclohexane, due to its low boiling point, low viscosity, stable chemical properties, and nonreactivity with the coal sample during thermal dissolution, effectively extracted the organic Composition Distribution of the Thermal Soluble 2024年6月11日 With cyclohexane (CH), benzene (BE), and ethyl acetate (EA) as solvents, Naomaohu lignite (NL, a typical oilrich, lowrank coal) from Hami, Xinjiang, was thermally (PDF) Composition Distribution of the Thermal Soluble
Study on the Formation Mechanism of the
2021年12月15日 The organic compounds in lignite are composed of various aromatic units with alkyl side chains and OCFGs such as hydroxyl, methoxy, carbonyl, and carboxyl groups, which are usually connected by oxygen bridges2024年1月1日 The studies on the structures of OM in lignite are oriented to evaluate the molecular structural features such as functional group and heteroatom distributions, bond Investigation on Compositional Structures of the Organic 2023年9月2日 From the point view of the macromolecular structure of organic matter (OM), the aromatic rings in lignite (ca 1−3 rings) are mainly connected by C−O and C−C bridged bonds, Investigation on Compositional Structures of the In this paper, the molecular composition of molecules extracted from a lignite was characterized by GC−MS and FT ICR MS By comparing the results from various coal particle sizes, Molecular Characterization of Soluble Components in
The biotic effects of lignite on humic acid components
2024年4月1日 In summary, lignite addition can achieve the objective of increasing the C4 component by the biotic pathways, ie, the manner of microbial and enzymatic action on HA In the Lusatian mining district, in the eastern part of the Federal Republic of Germany, organic matter of reclaimed mine soils consists of a mixture of lignite and recently formed soil organic matter (recent carbon) The aim of the study was to investigate the recent carbon accumulation and the degree of humification of a chronosequence of young mine soils under forest The Organic matter composition and degree of humification in lignite 2024年9月24日 This research work presents an examination of the concentrations and modes of occurrence of environmentally sensitive elements within lignite deposits, located in Neyveli, within the Cauvery Basin of India Coal is one of the most complex geologically formed materials, consisting of organic and inorganic matter The inorganic mineral matter including the Geochemical and mineralogical assessment of 2024年6月11日 The results showed that cyclohexane, due to its low boiling point, low viscosity, stable chemical properties, and nonreactivity with the coal sample during thermal dissolution, effectively extracted the organic Composition Distribution of the Thermal Soluble
Chemistry and geology of coal: nature, composition, coking
2023年1月19日 Coking Coking coal is an essential raw material for the production of iron and steel Coke is a solid carbonaceous residue formed from coking coal (a lowash, lowsulphur bituminous coal, also known as metallurgical coal), which is used in make steel and other iron products []Coke is produced by burning coal at temperatures up to 1000 °C in the absence of 2018年1月2日 Characterization of organic substances in lignite before and after hydrogen peroxide treatment: Implications for microbially enhanced coalbed methane Before H 2 O 2 treatment, the functional groups are almost exclusively contained in humin, because humin is the dominant component (~ 85%) of lignite (Fig 3) However, Characterization of organic substances in lignite before and 2022年12月5日 Ethanolysis of lignite is an effective approach for converting organic matter of lignite to liquid coal derivatives Xilinguole lignite (XL) was reacted with ethanol at 320 °C(PDF) Insight into the Compositional Features of Organic 2021年11月1日 To study the effect of multicomponent inorganicorganic acid solutions on the pore structure of lignite, acidtreated coal samples were analyzed by the liquid nitrogen adsorption method, scanning electron microscopy, energy dispersive spectrometry and molecular dynamics simulation The results show that different components of acid solution Experimental investigation for effect of multicomponent
Codegradation enhances the fermentation of degradable components
DOI: 101016/jjece2024 Corpus ID: ; Codegradation enhances the fermentation of degradable components instead of refractory organics in lignite and rice straw2022年12月5日 Ethanolysis of lignite is an effective approach for converting organic matter of lignite to liquid coal derivatives Xilinguole lignite (XL) was reacted with ethanol at 320 °C Then ethanol and isometric carbon disulfide/acetone mixture were used to extract the reaction mixture in a modified Soxhlet extractor to afford extractable portion 1 (EP1) and extractable portion 2 Insight into the Compositional Features of Organic Matter in 2023年10月15日 However, the lignite component did not play a significant role in spring wheat biomass production The findings of Baumann et al (2005) were similar: lignite added to sandy soil had no impact on the dry weight of pine shoots (Pinus sylvestris L), but it increased the dry weight of roots The researchers observed that the roots tended to grow Effect of organic/inorganic composites as soil amendments 2023年11月15日 Microorganisms are the key engines to drive the degradation of organic components and help HS synthesis in composting (Wu et al, 2021b)Xi et al (2015) reported that inoculation enhanced the decomposition of organic fractions and accelerated the composting process For example, the transformation of organic components into smaller molecules like Bacillus licheniformis inoculation promoted humification
Organic associations of nonmineral elements in coal: A review
2020年2月1日 Coal is a complex material formed by diagenesis of organic matter and incorporating a broad range of minerals (Finkelman et al, 2019) and chemical elements (Swaine, 1990; Ketris and Yudovich, 2009) (also see Fig 1)Coal formed from algal remains or spores is referred to as sapropelic coal and that from the decomposition of higher plants, humic coal; the 2001年1月1日 This chapter discusses the organic structural features of lignites, beginning with the lithologic layering in lignite seams, proceeding to characteristics of lithotypes and macerals, and then to details of structure at the molecular level The chapter presents the coalification of plant matter Attrital lignites are mainly composed of plant Chapter 3 The organic structure of lignites ScienceDirect2022年8月15日 Among the various nonenergy use of lignite, oxidative depolymerization is an important route for producing chemicals such as valuable organic acids (VOAs) from lignite under moderate reaction conditions, which has attracted increasing research interests [11], [12], [13]Through the oxidation depolymerization process, the macromolecular structures in lignite Alkaline earth metal ions mediated coordination separation 2023年12月5日 32 Effects of organic fertilizer DOM components on soil nitrogen transformation properties To further investigate whether the changes in nitrogen supply characteristics were caused by the differences in carbon availability in DOM hydrophilic and hydrophobic treatments, and if more nitrogen is conserved in the microbiomass, the mineral nitrogen contents and DOM hydrophilic components of organic fertilizers increased
The biotic effects of lignite on humic acid components
2024年4月1日 The Parallel factor analysis revealed that lignite can significantly increase the complexity of highly humified components The lignite addition improved phenol oxidase activity, particularly laccase, during the thermophilic and cooling phases the organic waste underwent a chain of intricate biochemical reactions to generate humic acid (Wu 2020年1月27日 Lignite is formed from lignin, a natural phenolic compound that forms the main component of wood []According to Barkhorn (cited in [], p 117), “the breakdown of plant tissues is accompanied by the rapid disappearance of cellulose and the retention of lignites and other stable complexes”It is important to note that the decomposition of woody tissues is an oxidative Concentration of Germanium in Lignite Deposits2023年10月1日 Mechanistic insight into the adsorption and interaction of lignite, organic ingredients, and dispersant in coal wastewater slurry Author links open overlay panel Suqian Gu a 1 It could be observed that the MSD slopes of various components in CWWS were in the order of quinoline > pyridine > oCresol > mCresol > phenol > NNO > dodecane Mechanistic insight into the adsorption and interaction of lignite 2015年3月15日 During lignite pyrolysis, the emission of volatiles was unhindered and the char surface was smooth, so the pores of the lignite char were well developed Rather, organic components present in DLR can provide active hydrogen for free radicals released by lignite pyrolysis and thereby reduce the amount of polycondensation reactions between Copyrolysis of lignite and Shendong coal direct liquefaction residue
Organic oxygen transformation during pyrolysis of Baiyinhua lignite
2016年1月1日 Organic oxygen species (OOSs) in coal can be categorized into carboxyl, hydroxyl, carbonyl, and ether functionalities Around 50 percent of the oxygen in lignite (ligniteO) exists in carboxyl and hydroxyl groups [1], [2]The number of OOSs in lignite is thought to play a significant role in the coal–water interactions by providing binding sites for the water molecules 2022年3月1日 Results It was discovered that the addition of organic fertilizer DOM components (H and P) slowed nitrification rate and increased protease activity resulting in a higher NH 4 ⁺ N content Effects of the lignite bioorganic fertilizer on greenhouse gas 2015年1月14日 The proposed transport pathway of the Pliocene lignite hypothesis for organic compound exposure from endemic area Pliocene lignite coals to well and spring drinking water, is likely(PDF) Organic contaminants in the groundwaters of a lignite 2024年8月1日 Lignite holds significance not only as an important fossil fuel, but also as a versatile chemical raw material Almost all coal conversion technologies necessitate the application of heat treatment to coal This is consistent with the results of the thermal evolution of organic components of coal rock [33] Download: Download highres image Evolution mechanism of organic macromolecular structure during lignite
Correlations of composition and structural characteristics
2023年5月1日 During pyrolysis, the intrinsic organic species in coals play an important role on the formation of tar but the relationship between them has not been elucidated in detailIn this study, the composition and structural characteristics of pyrolysis tars and soluble portions (SPs) via thermal dissolution from Baoqing lignite were analyzed with Fourier transform infrared 2006年9月1日 The lignite HA has been especially interesting in respect to, eg, structural chemistry and different technical applications The HA content is usually the highest in naturally oxidized lignite derivatives (eg, leonardite), and thus several processes have been developed to synthetically oxidize other common low rank coals with a view to increase the content of Aspects of structural features in lignite and lignite humic acidsRequest PDF On Jan 1, 2016, XiaoBo Feng and others published Organic oxygen transformation during pyrolysis of Baiyinhua lignite Find, read and cite all the research you need on ResearchGateOrganic oxygen transformation during pyrolysis of Baiyinhua lignite 2024年2月1日 Therefore, it is suitable to use GC × GC/TOF MS to reveal detailed molecular characteristics of organic matter in coal, especially for the minor components undetected by other methods Compared with GC/MS, GC × GC/TOF MS can detect more compounds in complex mixtures due to its stronger abilities of separation and identification [9]Molecular and geochemical characteristics of lignite in
Table 2 Petrographic and chemical components of the lignite
The stable carbon isotopic composition of bulk organic matter (−3066 to −2551‰) and total carbon to organic nitrogen ratio (2662–13112) may suggest that the organic matter was sourced 2021年11月1日 Lignite is a solid combustible organic rock composed of a complex mixture of organic matter and inorganic minerals, which mainly divided into three components: aliphatic carbon (0–90 ppm), aromatic carbon (90–150 ppm), and carboxy/carbonyl carbon (150–240 ppm), respectively The most obvious feature of the two coal samples is the high Molecular structural characteristics of late Jurassic Shengli lignite 2024年2月15日 It could be observed that density separation can effectively separate a large number of organic components from lignite After calcination, the proportion of heavy density fraction increased, indicating a decrease in the percentage of organic components Download: Download highres image (273KB) Download: Download fullsize image; Fig 1Chemical species of Ge/W/Ga in lignite and theirIn the Lusatian mining district, in the eastern part of the Federal Republic of Germany, organic matter of reclaimed mine soils consists of a mixture of lignite and recently formed soil organic matter (recent carbon) The aim of the study was to investigate the recent carbon accumulation and the degree of humification of a chronosequence of young mine soils under forest The Organic matter composition and degree of humification in lignite
Geochemical and mineralogical assessment of
2024年9月24日 This research work presents an examination of the concentrations and modes of occurrence of environmentally sensitive elements within lignite deposits, located in Neyveli, within the Cauvery Basin of India Coal is one of the most complex geologically formed materials, consisting of organic and inorganic matter The inorganic mineral matter including the 2024年6月11日 The results showed that cyclohexane, due to its low boiling point, low viscosity, stable chemical properties, and nonreactivity with the coal sample during thermal dissolution, effectively extracted the organic Composition Distribution of the Thermal Soluble 2023年1月19日 Coking Coking coal is an essential raw material for the production of iron and steel Coke is a solid carbonaceous residue formed from coking coal (a lowash, lowsulphur bituminous coal, also known as metallurgical coal), which is used in make steel and other iron products []Coke is produced by burning coal at temperatures up to 1000 °C in the absence of Chemistry and geology of coal: nature, composition, coking 2018年1月2日 Characterization of organic substances in lignite before and after hydrogen peroxide treatment: Implications for microbially enhanced coalbed methane Before H 2 O 2 treatment, the functional groups are almost exclusively contained in humin, because humin is the dominant component (~ 85%) of lignite (Fig 3) However, Characterization of organic substances in lignite before and
(PDF) Insight into the Compositional Features of Organic
2022年12月5日 Ethanolysis of lignite is an effective approach for converting organic matter of lignite to liquid coal derivatives Xilinguole lignite (XL) was reacted with ethanol at 320 °C2021年11月1日 To study the effect of multicomponent inorganicorganic acid solutions on the pore structure of lignite, acidtreated coal samples were analyzed by the liquid nitrogen adsorption method, scanning electron microscopy, energy dispersive spectrometry and molecular dynamics simulation The results show that different components of acid solution Experimental investigation for effect of multicomponent DOI: 101016/jjece2024 Corpus ID: ; Codegradation enhances the fermentation of degradable components instead of refractory organics in lignite and rice strawCodegradation enhances the fermentation of degradable components 2022年12月5日 Ethanolysis of lignite is an effective approach for converting organic matter of lignite to liquid coal derivatives Xilinguole lignite (XL) was reacted with ethanol at 320 °C Then ethanol and isometric carbon disulfide/acetone mixture were used to extract the reaction mixture in a modified Soxhlet extractor to afford extractable portion 1 (EP1) and extractable portion 2 Insight into the Compositional Features of Organic Matter in
Effect of organic/inorganic composites as soil amendments
2023年10月15日 However, the lignite component did not play a significant role in spring wheat biomass production The findings of Baumann et al (2005) were similar: lignite added to sandy soil had no impact on the dry weight of pine shoots (Pinus sylvestris L), but it increased the dry weight of roots The researchers observed that the roots tended to grow