Αποτελέσματα Αναζήτησης
15 Μαΐ 2016 · Measurements to determine coal quality as fuel include proximate analysis, ultimate analysis and calorific value. The latter is an attribute taking non-negative real values, so a simple transformation is sufficient for its spatial modeling applying geostatistics.
3 Ιαν 2022 · To compare the behavior of the two coal ranks (lignite and bituminous coals), the results of the TGA experiment of the mid-size fraction from each type of the treated coal (250–350 μm of BA coal and the 200–500 μm of HA coal) in the different gas atmospheres are shown in Figure 3.
15 Μαΐ 2016 · Mapping of coal quality using stochastic simulation and isometric logratio transformation with an application to a Texas lignite. International Journal of Coal Geology, 152, 80–93. View Abstract
1 Μαΐ 2016 · Drill hole datasets ranging from widespread exploration drilling to detailed development drilling from a lignite deposit in Texas were used to illustrate the modeling.
24 Ιουν 2020 · The distinguishing of high- and low-quality lignite coal with high performance will benefit the investor while also benefiting lignite coal users in terms of health. The highlights of the proposed method in this article are as follows.
Statistical analysis of chemical data on Texas Eocene coals revealed startigraphic and geographic trends in lignite quality. Chemical data on near-surface coals wre obtained from various private and public sources. Seams from deep-basin coals were compared.
15 Οκτ 2022 · Combining the analysis of the supercritical ethanolysis products of Huolinhe lignite and enzymatic lignin, we found the structural units of enzymatic lignin contained more methoxy, phenolic hydroxyl groups, and C-O ether bonds, but fewer methylene chains than those of Huolinhe lignite.
