Local structures of metals dispersed on coal. 4. Local structure of calcium species on coal after heat treatment and carbon dioxide gasification

1992 ◽  
Vol 6 (5) ◽  
pp. 656-661 ◽  
Author(s):  
Hiromi Yamashita ◽  
Masaharu Nomura ◽  
Akira Tomita
Keyword(s):  
Carbon Dioxide ◽  
Heat Treatment ◽  
Local Structure ◽  
Local Structures ◽  
Carbon Dioxide Gasification

Local structures of metals dispersed on coal. 1. Change of local structure of iron species on brown coal during heat treatment

1989 ◽  
Vol 3 (6) ◽  
pp. 686-692 ◽  
Author(s):  
Hiromi Yamashita ◽  
Yasuo Ohtsuka ◽  
Satohiro Yoshida ◽  
Akira Tomita
Keyword(s):  
Heat Treatment ◽  
Brown Coal ◽  
Local Structure ◽  
Iron Species ◽  
Local Structures

Does Local Structure Bias How a Crystal Nucleus Evolves?

2018 ◽  
Author(s):  
Kyle Hall ◽  
Zhengcai Zhang ◽  
Christian Burnham ◽  
Guang-Jun Guo ◽  
Sheelagh Carpendale ◽  
...  
Keyword(s):  
Local Structure ◽  
Molecular Level ◽  
Hydrate Formation ◽  
Mixed Gas ◽  
Local Structures ◽  
Surrounding Environment ◽  
Gas Hydrate Formation ◽  
Significant Research ◽  
Crystal Phases ◽  
Recent Experimental Work

<p>The broad scientific and technological importance of crystallization has led to significant research probing and rationalizing crystallization processes, particularly how nascent</p> <p>crystal phases appear. Previous work has generally neglected the possibility of the molecular-level dynamics of individual nuclei coupling to local structures (e.g., that of the nucleus and its</p> <p>surrounding environment). However, recent experimental work has conjectured that this can occur. Therefore, to address a deficiency in scientific understanding of crystallization, we have</p> <p>probed the nucleation of prototypical single and multi-component crystals (specifically, ice and mixed gas hydrates). Here, we establish that local structures can bias the evolution of nascent</p> <p>crystal phases on a nanosecond timescale by, for example, promoting the appearance or disappearance of specific crystal motifs, and thus reveal a new facet of crystallization behaviour.</p> <p>Analysis of the crystallization literature confirms that structural biases are likely present during crystallization processes beyond ice and gas hydrate formation. Moreover, we demonstrate that</p> <p>structurally-biased dynamics are a lens for understanding existing computational and experimental results while pointing to future opportunities.</p>

Does Local Structure Bias How a Crystal Nucleus Evolves?

2018 ◽  
Author(s):  
Kyle Hall ◽  
Zhengcai Zhang ◽  
Christian Burnham ◽  
Guang-Jun Guo ◽  
Sheelagh Carpendale ◽  
...  
Keyword(s):  
Local Structure ◽  
Molecular Level ◽  
Hydrate Formation ◽  
Mixed Gas ◽  
Local Structures ◽  
Surrounding Environment ◽  
Gas Hydrate Formation ◽  
Significant Research ◽  
Crystal Phases ◽  
Recent Experimental Work

<p>The broad scientific and technological importance of crystallization has led to significant research probing and rationalizing crystallization processes, particularly how nascent</p> <p>crystal phases appear. Previous work has generally neglected the possibility of the molecular-level dynamics of individual nuclei coupling to local structures (e.g., that of the nucleus and its</p> <p>surrounding environment). However, recent experimental work has conjectured that this can occur. Therefore, to address a deficiency in scientific understanding of crystallization, we have</p> <p>probed the nucleation of prototypical single and multi-component crystals (specifically, ice and mixed gas hydrates). Here, we establish that local structures can bias the evolution of nascent</p> <p>crystal phases on a nanosecond timescale by, for example, promoting the appearance or disappearance of specific crystal motifs, and thus reveal a new facet of crystallization behaviour.</p> <p>Analysis of the crystallization literature confirms that structural biases are likely present during crystallization processes beyond ice and gas hydrate formation. Moreover, we demonstrate that</p> <p>structurally-biased dynamics are a lens for understanding existing computational and experimental results while pointing to future opportunities.</p>

Alkali metal catalyzed carbon dioxide gasification of carbon

1992 ◽  
Vol 6 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Toshimitsu Suzuki ◽  
Hiroyuki Ohme ◽  
Yoshihisa Watanabe
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metal ◽  
Gasification Of Carbon ◽  
Metal Catalyzed ◽  
Carbon Dioxide Gasification

Effects of heat treatment on microstructure, hardness and local structure in a compositionally complex alloy

2021 ◽  
pp. 125432
Author(s):  
A. Fantin ◽  
C.T. Cakir ◽  
S. Kasatikov ◽  
G. Schumacher ◽  
A.M. Manzoni
Keyword(s):  
Heat Treatment ◽  
Local Structure ◽  
Complex Alloy

The Local Structure Research on the Nanpu 5th Construct

2015 ◽  
Vol 733 ◽  
pp. 80-83
Author(s):  
Chun Qiu ◽  
Ming Xue Zhang ◽  
Xiao Yan Lv
Keyword(s):  
Seismic Data ◽  
Local Structure ◽  
Oil And Gas ◽  
Structural Characteristics ◽  
Bohai Bay ◽  
Hydrocarbon Accumulation ◽  
Local Structures ◽  
Huanghua Depression ◽  
Exploration Area ◽  
Structure Research

The Nanpu 5th construct is in the western part of Huanghua Depression Nanpu Sag of Bohai Bay Basin, was a complicated anticline belt that develops between Jian Dong fault and the downthrown side of the southwestern Zhuang fault and the favorable exploration area is 120km2. On the basis of the region's large number of multi-channel seismic data analysis and interpretation, the trap types, structural characteristics and distribution of local structures between the layers of the region are researched. Interlayer local structures in the area are mainly divided into nose structure and small anticline. The fault zone is a structural high in the region, to promote oil and gas to migrate and accumulate to the low-potential zones that become favorable zones for hydrocarbon accumulation, but the real decisive construct parts of the hydrocarbon accumulation is positive local structure in favorable zones which point out the region for hydrocarbon accumulation.

The carbon dioxide gasification characteristics of biomass char samples and their effect on coal gasification reactivity during co-gasification

2018 ◽  
Vol 258 ◽  
pp. 70-78 ◽  
Author(s):  
Lihle D. Mafu ◽  
Hein W.J.P. Neomagus ◽  
Raymond C. Everson ◽  
Gregory N. Okolo ◽  
Christien A. Strydom ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Coal Gasification ◽  
Gasification Reactivity ◽  
Biomass Char ◽  
Carbon Dioxide Gasification

Stable Syngas Production by Concurrent Methane Decomposition and Carbon Dioxide Gasification with Activated Carbon

2016 ◽  
Vol 8 (1) ◽  
pp. 205-211 ◽  
Author(s):  
Seung Chul Lee ◽  
Jong Tak Jang ◽  
Jimin Kim ◽  
Jong Wook Bae ◽  
Ki June Yoon ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Activated Carbon ◽  
Methane Decomposition ◽  
Syngas Production ◽  
Carbon Dioxide Gasification
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