Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)最新文献_第2页

Investigation on Characterization and Pyrolysis of Some Coals from Mongolia 蒙古部分煤的表征及热解研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.017

P. Barnasan, Batkhishig Damdin, B. Sanjaa, Battsetseg Munkhtaivan, Ankhtuya Ariunbold, Jargalmaa Soninkhuu, Avid Budeebazar, A. Aleksandr, P. Kuznetsov

{"title":"Investigation on Characterization and Pyrolysis of Some Coals from Mongolia","authors":"P. Barnasan, Batkhishig Damdin, B. Sanjaa, Battsetseg Munkhtaivan, Ankhtuya Ariunbold, Jargalmaa Soninkhuu, Avid Budeebazar, A. Aleksandr, P. Kuznetsov","doi":"10.2991/ahcps.k.211004.017","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.017","url":null,"abstract":"This study reports the technical characteristics, the organic elemental composition of coal, and the inorganic elemental composition of coal ashes from four selected coals including Tavan tolgoi, Nariin sukhait, Baganuur and Shivee-Ovoo deposits in Mongolia. The thermal stability analyses of the organic mass in coal samples were also conducted with thermogravimetric analysis and discussed with the detailed mechanisms of the thermal decomposition of the coal organic mass. Furthermore, the coal samples were processed by pyrolysis at different heating temperatures and determined the yields of pyrolysis products such as hard residue, condensed liquid (tar and pyrolysis water), and uncondensed gas products. The coal ashes from the selected coals were also studied in detail and report that the ashes of high-rank coals of Tavan tolgoi and Nariin sukhait deposits have acidic character and ashes of low-rank coals of Baganuur and Shivee-Ovoo deposits have alkaline character. In addition, the coals samples from Tavan tolgoi, Nariin sukhait, Shivee-Ovoo, and Baganuur deposits were processed by pyrolysis at different heating temperatures and determined with the yields of pyrolysis products such as hard residue, condensed liquid (tar and pyrolysis water), and uncondensed gas products. The yields of hard residue from high-rank coals of Tavan tolgoi and Nariin sukhait were higher than that of low-rank coals of Baganuur and Shivee-Ovoo coal. The dewatered tar products of pyrolysis were investigated for chemical composition analysis.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74194253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Study on the Effect of Oil Recovery and Transportability Through the Rock Core Using SiO2 Nanoparticles Fluid for Sandstone SiO2纳米流体对砂岩岩心采收率和可输运性影响的实验研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.001

K. Abe, Taisuke Inomata, S. Naganawa, Hikari Fujii

引用次数: 0

Vertical Profile of Water and Sediment in Lake Oigon 奥贡湖水沙垂直剖面

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.011

Byambadulam Enkhee, B. Chuluun, Bayanmunkh Baatar, S. Nyamdorj, Sen-Lin Tang, B. Oyuntsetseg

{"title":"Vertical Profile of Water and Sediment in Lake Oigon","authors":"Byambadulam Enkhee, B. Chuluun, Bayanmunkh Baatar, S. Nyamdorj, Sen-Lin Tang, B. Oyuntsetseg","doi":"10.2991/ahcps.k.211004.011","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.011","url":null,"abstract":"Determining vertical variation of water quality parameters is contributed to a better understanding of the true nature of lakes. Lakes are classified into holomictic and meromictic lakes by their mixing mode; the former occurs physicochemical mixing between the surface and deep waters, while the latter layers of lake water occur unmixed for years, decades, or centuries. Lake Oigon is the only Meromictic Lake identified in Mongolia. Few Mongolian lakes have been studied in different seasons but not in the vertical directions. Therefore, we studied the vertical profile of water and sediment parameters in Lake Oigon for two years. Physico-chemical parameters in water were measured on-site, while sediment parameters were determined off-site. Salinity in lake water ranged from 21.3 to 65.9 g/L which represented mesosaline to hypersaline. In oxic, sub-oxic, and anoxic zones, the physico-chemical parameters of Lake Oigon were varied a lot in longitudinal ways lake and seasonal variation observed as well. However, most parameters were stable in the anoxic zone, regardless of seasons, indicating that no water movement was at the bottom of the lake. Layered sediments with salt indicating hardly exchange with lake water at the anoxic zone. The statistical correlation and principal component analysis between the various physico-chemical parameters of lake water and lake sediment were computed. This study provides the basic information for future research on the characteristic of the vertical profile, impact on the ecosystem, and environmental assessment for Lake Oigon.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91375530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

First-Principles Study of Adsorption of Hazardous Atoms on the Silica Surface 二氧化硅表面吸附有害原子的第一性原理研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.003

Ankhzaya Ganbaatar, Namsrai Tsogbadrakh, Ochirkhuyag Baynjargal, T. Ganbold

引用次数: 0

Chemical Composition of Peloid from Lake Khyargas 喀尔加斯湖泥球的化学成分

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.009

Bayaraa Batnasan, Ganzaya Gankhurel, Dolmaa Gania

引用次数: 0

A Technological Study of Reduced Iron from Standard Concentrate 标准精矿中还原铁的工艺研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.023

Unursaikhan Buyannasan, Sukhbat Sandag-Ochir, Sugir-Erdene Namsrai, Soyolmaa Tsolkhuu, Orgilbayar Batkhuyag, Baasanjav Dashtseren, Zagarzusem Tsedendamba, Khasbaatar Dashkhuu, Otgonjargal Enkhtur

引用次数: 0

Chlorophyll Catabolites in Senescent Leaves of Lima Bean (Phaseolus Lunatus) and in the Frass of Spodoptera Littoralis After Defecation 青豆(Phaseolus Lunatus)衰老叶片和滨夜蛾(Spodoptera Littoralis)粪便后叶片中叶绿素分解物的研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.010

Amarsanaa Badgaa, Axel Mithoefer, Khureldavaa Otgonbayar, C. Paetz, W. Boland

{"title":"Chlorophyll Catabolites in Senescent Leaves of Lima Bean (Phaseolus Lunatus) and in the Frass of Spodoptera Littoralis After Defecation","authors":"Amarsanaa Badgaa, Axel Mithoefer, Khureldavaa Otgonbayar, C. Paetz, W. Boland","doi":"10.2991/ahcps.k.211004.010","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.010","url":null,"abstract":"Chlorophylls (Chls), the green pigments responsible for photosynthesis in plants, algae and bacteria, are also part of the daily diet of herbivorous feeders. Chl degradation occurs during leaf senescence and fruit ripening but is also noticed as a response to biotic and abiotic stresses. Besides the programmed degradation during senescence different factors such as high temperature, extreme pH values, enzymatic actions, molecular oxygen, and light initiate the degradation of Chl. To gain more information on Chl degradation in the gut of plant-feeding insects, regurgitate and frass of Spodoptera littoralis caterpillars were analysed for late Chl catabolites by using LC-MS, UV, Fluorescence and NMR spectroscopy. The major metabolites were determined in fresh leaves of the food plant lima bean (Phaseoluslunatus), and were compared with digestive products. The observed spectrum of metabolites can be attributed to the combined action of esterolytic gut enzymes and the strongly alkaline milieu in the digestive tract. Interestingly, linear Chl catabolites were not detected in the gut of the larvae of S. littoralis. Substantial amounts of Chl catabolites were found to be macrocyclic rings opened in the senescent food plants, but also in the aged frass. We studied two primary fluorescent chlorophyll catabolites in senescent leaves of lima bean. One of the primary fluorescent chlorophyll catabolites that have been found in the frass of S. littoralis might be generating opened tetrapyrroles of Chl, only after being exposed to the air and light.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89743594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Screening for Superoxide Dismutase Activity in Certain Food and Medicinal Plants of Mongolia 蒙古某些食用和药用植物超氧化物歧化酶活性的筛选

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.005

Bayarmaa Jambalsuren, Purev Dondog

引用次数: 0

Biochemical Composition, Amino Acid and Fatty Acid Contents of Muskrat (Ondatra zibethicus) Meat 麝鼠肉的生化组成、氨基酸和脂肪酸含量

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.006

Sukhdolgor Jigmed, Enkhsukh Lkhamkhuu, Oyunjargal Tumurbaatar, S. Shar, Suvdmaa Tuvaanjav

引用次数: 0

Corrigendum to “Waterflooding Technique to the Kashkari Oilfield in the North Part of Afghanistan” “阿富汗北部Kashkari油田注水技术”勘误表

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.025

Zabihullah Mahdi, Kazunori Abe, Khwaja Naweed Seddiqi, Hikari Fujii

引用次数: 0