Results 91 to 100 of about 303,789 (306)

The Effect of Demineralization on Coal Functional Group Pyrolysis: Rank‐Dependent Dual Mechanisms of Structural Reorganization and Mineral Catalysis

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Coal pyrolysis, as a key thermochemical conversion process, is significantly influenced by inherent minerals, yet their role across different coal ranks remains inadequately understood. This study investigates the effect of acid‐washing (demineralization) on the thermal decomposition of six functional groups (aliphatic C–H, aromatic C–H/C=C, C=
Zhiyuan Niu, Guijian Liu, Hao Yin, Yang Song, Aifang Ding   +4 more
wiley   +1 more source

Characterization of Municipal Solid Waste as An Energy Source in The Gasification Process

Logic
Municipal solid waste (MSW) poses significant environmental challenges if not managed effectively. The composition and quantity of MSW are closely linked to the socioeconomic structure of a given area.
I Wayan Temaja, I Nyoman Suprapta Winaya, I Ketut Gede Wirawan, Made Sucipta, I Putu Angga Yuda Pratama   +4 more
doaj   +1 more source

Thematic Proximity in Content Analysis [PDF]

Sage Open, 2017
This article explains how to calculate thematic proximity within a mixed methods content analysis approach. Thematic proximity of two themes can indicate the presence of meta-themes. Meta-themes are themes which acquire their meaning through the systematic co-occurrence of two or more other themes.
openaire   +2 more sources

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo, Jianbo Li, Xiaofei Long, Quanhai Wang, Xiaofeng Lu   +4 more
wiley   +1 more source

Chemical composition of pine nut (Pinus pinea L.) grown in three geographical macrozones in Chile

CyTA - Journal of Food, 2017
Mediterranean pine nuts are recognized for their high nutritional value and healthy benefits. The aim of the study was to analyze the composition of pine nuts harvested from Pinus pinea L. across three different geographic macrozones in Chile.
Mariane Lutz, Katherine Álvarez, Verónica Loewe   +2 more
doaj   +1 more source

A Phragm\'en-Lindel\"of theorem via proximate orders, and the propagation of asymptotics

, 2017
We prove that, for asymptotically bounded holomorphic functions in a sector in $\mathbb{C}$, an asymptotic expansion in a single direction towards the vertex with constraints in terms of a logarithmically convex sequence admitting a nonzero proximate ...
Jiménez-Garrido, Javier, Sanz, Javier, Schindl, Gerhard   +2 more
core   +1 more source

Potassium Migration of Chestnut Shell Ashes Under Oxidizing Atmosphere and Its Modification Mechanism by Additives

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Biomass energy plays a critical role in alleviating environmental pressures. However, its relatively high content of alkali metals (especially for potassium) would cause ash‐related issues during combustion. To mitigate these issues, the potassium migration behaviors during chestnut shell (CS) conversion and the modification mechanisms of ...
Meijie Zhou, Weijie Guo, Fenghai Li, Xuefei Liu, Ziqiang Yang, Mingjie Ma, Yitian Fang   +6 more
wiley   +1 more source

The Effect of Sintering Flue Gas Composition on NO Reduction in Coke

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The strategy of substituting combustion air with sintering flue gas in circulating fluidized bed (CFB) systems provides a low‐cost and highly efficient approach for the purification of sintering off‐gas. In this work, coke was employed as the reducing agent, and a high‐temperature vertical tube furnace was used to simulate the dense‐phase ...
Canbin Huang, Tuo Zhou, Hao Xie, Jinjiang Zhao, Man Zhang, Hairui Yang   +5 more
wiley   +1 more source

Nutritional Quality of Edible Marine Bivalves from the Southern Coast of Italy, Mediterranean Sea

Polish Journal of Food and Nutrition Sciences, 2019
Nutritional quality parameters of eight commercially important bivalve species ( Arca noae, Flexopecten glaber, Limaria tuberculata, Mimachlamys varia, Modiolus barbatus, Mytilus galloprovincialis, Ostrea edulis and Solen marginatus ) from the Ionian Sea
Francesca Biandolino, Antonella Di Leo, Isabella Parlapiano, Loredana Papa, Santina Giandomenico, Lucia Spada, Ermelinda Prato   +6 more
doaj   +1 more source

Construction of Lean Coal Molecular Structure Model Based on Spectroscopic Characterization

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The chemical structure of coal exerts a profound influence on its properties and utilization pathways. A comprehensive analysis of coal's molecular structure is crucial for mitigating environmental pollution arising from coal combustion and improving the efficiency of coal utilization.
Song Liu, Hao Xia, Tao Ge, Yaling Bai, Shoulan Wang, Yunfang Liu   +5 more
wiley   +1 more source