Preparation of highly dispersed lignite-char-supported cobalt catalyst for stably steam reforming of biomass tar at low temperature. Author links open overlay panel Wen Tang a, Jing-Pei Cao a, Ze-Ying Wang a, Wei Jiang a, Xiao-Yan Zhao a, Zi-Meng He a, Zhi-Hao Wang a, Hong-Cun Bai b. Show more.
Lignite is a low-quality energy source which accounts for 13 % of China's coal reserves. It is imperative to improve the quality of lignite for large-scale utilization. …
2.1.1. Preparation of Simulated Dust. The simulated dust used in the experiment was lignite from Shaanxi Shenmu. The collected coal samples were pulverized and sieved to prepare 200-mesh dust for use. 2.1.2. Experimental Reagents. Experimental materials are shown in Table 1. Critical Micelle Concentration (CMC) is an important …
Lignite samples were obtained from Xinjiang Autonomous Region, China. The proximate analysis is shown in Table 1 [38]. The main raw materials in this study were WHPO, kerosene, octanol, methanol, and sodium hydroxide. ... Preparation of lignite-based activated carbon and its flue gas desulfurization performance. Mater Res …
Lignite rich in oxygen-containing species (OCSs) was employed as perfect ion-exchange material for high activity catalyst preparation. HCl treatment Shengli lignite (HSL) selectively removed the ...
Lignite Coal Preparation Date: 09/February/2009 Revision Date: 07/December/2015 Format: GHS Language: English (US) WHMIS, OSHA HCS 2012 Page 1 of 9.
DOI: 10.1016/J.FUEL.2018.10.085 Corpus ID: 105585772; Adsorption of ammonia nitrogen on lignite and its influence on coal water slurry preparation @article{Tu2019AdsorptionOA, title={Adsorption of ammonia nitrogen on lignite and its influence on coal water slurry preparation}, author={Yanan Tu and Ping Feng and …
Carrier based preparations of Azospirillum lipoferum (AZ 204) inoculant, developed using two different sources of biochar (acacia wood and coconut shell) were evaluated in comparison with lignite for their suitability as a best alternate to …
PDF | On Jan 1, 2020, Uugantsetseg Gombojav and others published Preparation of Activated Carbons from Mongolian Lignite and Sub-Bituminous Coal by a Physical Method | Find, read and cite all the ...
Abstract Carrier based preparations of Azospirillum lipoferum (AZ 204) inoculant, developed using two different sourcesof biochar (acacia wood and coconut shell) were evaluated in comparison with lignite for their suitability as abest alternate to lignite for commercial biofertilizer production. The survival of the microbial inoculant wasestimated over a …
Bituminous coal and lignite preparation plants performing such activities as cleaning, crushing, screening or sizing are included if operated in conjunction with a mine site, or if operated independently of any type of mine. Brown coal …
International Journal of Coal Preparation and Utilization Volume 39, 2019 - Issue 7. Submit an article Journal homepage. 215 Views 3 ... The results show that total moisture of lignite decreased significantly for both single-stage (23.9%) and dual-stage drying (11.7%) without any spontaneous combustion even at excessive temperature as …
Lignite preparation – which mostly rely on crushing and screening operations – dates back to 1800s (Arnold, Klima, and Bethell 2007). As industry …
The results show that the optimal preparation conditions of sulfhydryl modified lignite were determined by single factor test as follows: lignite particle size 0.18 mm (80 mesh), mass ratio of lignite to methanol 1∶3, reaction temperature of 40 ℃.
Ming Li a State Key Laboratory of Coking Coal Resources Green Exploitation, China University of Mining and Technology, Qinhuangdao, Hebei, China;b Chinese National Engineering Research Center of Coal Preparation and Purification, China University of Mining and Technology, Xuzhou, Jiangsu, China;c School of Chemical …
handling and preparation plant with 5,000 tonne per hour reclaimer and 5,000 tonne per hour train load out. TXU Engineering and supply for an air-jig beneficiation system for lignite projects in Texas, USA. Piast Mine - KWK 900 tonne per hour washery with fine coal jig, tabor screens, classifying cyclones, clean coal centrifuges,
Request PDF | Preparation of lignite-based activated carbon and its flue gas desulfurization performance | Activated carbon (AC) is a porous carbon material with a developed pore structure and ...
Bituminous coal and lignite preparation plants performing such activities as cleaning, crushing, screening or sizing are included if operated in conjunction with a mine site, or if operated independently of any type of mine. Brown coal mining: Preparation plants, bituminous coal or lignite:
Lignite was an inferior coal with the lowest degree of coalification (Li et al., 2019; Liu et al., ... fillers and modifiers road-base. Relevant review papers focused on the preparation of materials, reaction mechanisms, and the potential impact of the prepared materials on environmental pollution. Up to now, various research results have shown ...
2.2. Theoretical analysis. Fasctsage6.4 software is a powerful calculation software [16], [17], which has been used for proportions of the liquid and solid phases [18], predicting multiphase equilibrium [19], phase transitions in a specified atmosphere as well as temperature for the heterogeneous slag systems [20], [21].According to the elemental …
International Journal of Coal Preparation and Utilization Volume 37, 2017 - Issue 6. Submit an article Journal homepage. 387 Views 9 ... The present study investigated the extraction of humate from low-quality lignite samples acquired from Malkara and Yatagan coal deposits in Turkey. The experiments were conducted on …
Preparation of nFeS@Lignite. In previous studies, this research group optimized the preparation conditions of nFeS@Lignite through single-factor and …
In response to the insufficient supply of carbon sources and the toxicity of heavy metal ions when using sulfate reducing bacteria (SRB) to treat acid mine wastewater (AMD), the immobilized particles are prepared with Rhodopseudomonas, SRB and lignite as the main raw materials. And based on single f …
Coal-based activated carbon (CBAC) is prepared from lignite as raw material by the potassium-catalyzed steam activation method. The effect of various process …
Production of Lignite. In 2020, lignite production was 26.4 million tons. North Dakota's five lignite mines produce and sell coal to …
Weathered lignite typically contains 30–80% humic acid, with the specific content depending on the original characteristics of the coal and the conditions of the …
This study aimed to increase the ammonium nitrogen adsorption capacity of lignite using ultrafine grinding, aiming to reduce eutrophication in water bodies. Ammonium sulfate (NH4)2SO4 was employed as a stand-in for ammonium nitrogen in water solutions. The lignite sample for adsorption was processed with varying milling times. Adsorption …
The sorption efficiencies were higher for humin and lower for humic acid samples than for the original lignite. With its high sorption capacities of several mmol/g, particularly for Pb 2+ and Cd 2+, the South Moravian lignite can provide a cheap source material for preparation of sorbents utilizable in removal of toxic metals from wastewaters.
In this study, lignite-loaded nano-FeS (nFeS@Lignite) was successfully prepared by ultrasonic precipitation, and its potential for treating acid Cr(VI)-containing wastewater was explored. The results showed that the 40--80-nm rod-shaped nFeS was successfully loaded onto lignite particles, and the ma …
Saskatchewan lignite was used as a precursor to prepare carbonaceous adsorbents for use as SO 2 adsorbent from flue gases. The lignite was carbonized producing char in a fixed bed microreactor system at different temperatures from 350 to 550 ° C in nitrogen atmosphere. The chars obtained at 475 ° C for 120 min exhibited the …
The proximate and ultimate analyses of corncob and Shengli lignite (SL) were listed in Table S2, which are consistent with our previous data [37], [38]. Catalysts preparation and characterization. As we reported previously [35], [37], the ion-exchange ability of lignite increased when it is modified by acid. Textual properties