Moisture Absorption Characteristics of Porous Calcium Oxide Powders Produced by Calcination of Pulverized Limestone with Inorganic Salts Using a Powder-Particle Fluidized Bed
スポンサーリンク
概要
- 論文の詳細を見る
Small amounts of inorganic salts like sodium carbonate and calcium acetate were used as impregnants to pulverized limestone, which was then calcined in a powder-particle fluidized bed (PPFB) in nitrogen atmosphere at ambient pressure. Impregnation of 6-μm limestone with 1 mass% sodium carbonate and 1 mass% calcium acetate lowered the decomposition temperature by 30 K, making a 10% increase of calcination conversion at 1073 K. Additive impregnation involving calcium acetate produced macropores of larger than 50 nm in the reactant powders. Calcination with additive impregnation at 1073 K broadened the size of pores of the calcines to larger ones, newly producing 10-100 nm pores. These changes enhanced the ultimate moisture absorptivity by up to 20% as compared to the case without additive impregnation. However, calcination at 1173 K improved only the initial absorption rate.
- 社団法人 日本セラミックス協会の論文
著者
-
NAKAGAWA Nobuyoshi
Department of Biological and Chemical Engineering, Gunma University
-
Nakazato Tsutomu
Department Of Applied Chemistry And Chemical Engineering Kagoshima University
-
Nakagawa Nobuyoshi
Department of Biological & Chemical Engineering, Gunma University
-
YANO Fumiaki
Department of Biological and Chemical Engineering, Gunma University
-
OHYAMA Kaneto
Imaging & Information Media Division, Dynic Corporation
-
UCHIBORI Teruo
Imaging & Information Media Division, Dynic Corporation
-
OHYAMA Kaneto
Imaging & Information Media Division, Dynic Corporation
-
UCHIBORI Teruo
Imaging & Information Media Division, Dynic Corporation
関連論文
- Dynamic Evaluation of Membrane-Electrode Assembly in Operation of a Direct Methanol Fuel Cell by Simultaneous Measurements of Crossovers of Methanol and CO_2
- Relationship of the frequency scale for symptoms of gastroesophageal reflux disease with endoscopic findings of cardiac sphincter morphology
- Therapeutic Effects of Laparoscopic Fundoplication for Nonerosive Gastroesophageal Reflux Disease
- Therapeutic Effects of a Laparoscopic Heller Myotomy and Dor Fundoplication on the Chest Pain Associated with Achalasia
- Effects of ecabet sodium on experimentally induced reflex esophagitis
- Semi-dry Process for Production of Very Fine Calcium Carbonate Powder by a Powder-Particle Spouted Bed
- Total Solid Entrainment Rate in a Circulating Powder-Particle Fluidized Bed
- Entrainment Rates and Elutriation Rate Constants of Bed Particles and Group C Fine Powder in a Fluidized Bed and in a Circulating Fluidized Bed
- Optimization of Reaction Conditions of Two-Step Batch Operation for Biodiesel Fuel Production Using KOH Catalyst
- EFFECTIVE DRY DESULFURIZATION BY A POWDER-PARTICLE FLUIDIZED BED
- AXIAL DISTRIBUTION OF SOLID HOLDUPS IN BINARY SOLIDS CIRCULATING FLUIDIZED BEDS
- SEGREGATION OF PARTICLES IN BINARY SOLIDS CIRCULATING FLUIDIZED BEDS
- PARTICLE HOLD-UP AND ELUTRIATION RATE IN THE FREEBOARD OF FLUID BEDS
- OPERATIONAL RANGE FOR CONTINUOUS DRYING OF FINE-PARTICLE SLURRY AND FORMATION OF AGGLOMERATES IN A POWDER-PARTICLE FLUIDIZED BED
- CONTINUOUS DRYING OF A FINE PARTICLES-WATER SLURRY IN A POWDER-PARTICLE FLUIDIZED BED
- Removal Efficiency of the Combined Desulfurization/Denitration Process Using Powder-Particle Fluidized Bed
- Characteristics of Pressure with Respect to Heterogeneous Flow Structure in Fluidized Beds
- Hold-Up of Fine Particles in a Powder-Particle Spouted Bed
- THERMAL ANALYSIS IN A CHANNEL BETWEEN VERTICAL ELECTRONIC CIRCUIT BOARDS COOLED BY FORCED CONVECTION
- FORCED CONVECTIVE HEAT TRANSFER FROM A CHANNEL BETWEEN VERTICAL ELECTRONIC CIRCUIT BOARDS
- ELUTRIATION OF FINE POWDERS FROM A FLUIDIZED BED OF A BINARY PARTICLE-MIXTURE
- Minimum Fluidization Velocity of Binary Particle Mixtures with Adhesive Fine Powder
- Laparoscopic Heller Myotomy and Dor Fundoplication Combined with Laparoscopic Diverticular Introversion Suturing for Achalasia Complicated by Epiphrenic Diverticulum : Report of a Case
- Penetration of fine cohesive powders through a powder-particle fluidized bed
- Methanol Diffusion through a Porous Plate in Anode Backing of a Passive Direct Methanol Fuel Cell under Closed Circuit Conditions
- Relationship between manometric findings and reported symptoms in nutcracker esophagus : insights gained from a review of 313 patients
- Elimination of Defluidization Caused by Reactions Involving a Volume Reduction in a Fluidized Catalyst Bed and Improvement of Fluidization by Two-Stage Feeding
- Single-incision laparoscopic Heller myotomy and Dor fundoplication for achalasia : report of a case
- Continuous Production of N–F-Codoped Titanium Oxide Photocatalyst Powders via Drip Pyrolysis in a Fluidized Bed under Reduction Conditions
- Preparation of Pt-Ru Nanoparticles with a Uniform Size Distribution on a Mesoporous Carbon and their Activity towards Methanol Electro-oxidation
- Catalytic activity of yeast extract in biofuel cell(BIOCHEMICAL ENGINEERING)
- Reoperations for esophageal achalasia
- Heat transfer in a channel between vertical electronic circuit boards cooled by natural air convection.
- Moisture Absorption Characteristics of Porous Calcium Oxide Powders Produced by Calcination of Pulverized Limestone with Inorganic Salts Using a Powder-Particle Fluidized Bed
- Continuous production of hydroxyapatite powder by drip pyrolysis in a fluidized bed
- Effects of Increase in Gas Volume on the Fluidization Properties in Fluidized Bed Reactors
- Catalytic activity of yeast extract in biofuel cell