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Characteristics of red mud slurry flow in carbonation reactor

The fluid characteristics of red mud slurry in carbonation reactor were studied. • Experimental measurements were performed. • Studies are on the effects of gas/liquid velocity and height-to-diameter ratio. • The maximum CO 2 utilization rate (η) was achieved, i.e., η = 83.3%.

Increasing Productivity in Slurry Hydrogenation Processes

4 1: Reactor Options Two popular reactor configurations for slurry hydrogenation are illustrated in Figures 1.1 and 1.2. The traditional batch stirred tank design, Figure 1.1, is inexpensive, well known in the industry, easy to service

Calcium Carbonate Plant,Calcium Hydroxide Plant,Calcium .

The line slurry is then further processed to reach at designed process conditions, required in reactor for carbonation. The CO2 gas from lime kiln is cooled and washed in a vertical washer and then it is charged to the batch reactor. The required conditions are maintained in reactor to obtain different grade of precipitated calcium carbonate.

phosphoric acid plant reactor agitator design

The phosphoric acid reactor had a lot of small vertical agitators, resulting in a rather homogeneous slurry. 2. Vertical side agitators (Plenty) are used in a local refinery without leakage, so I suppose suspended gypsum particles destroy the side agitator seal causing leakage from phosphoric acid tank.

Design of a Slurry-foam Reactor System for the Manufacture .

carbonation of hydrated lime in slurry in a semi-batch slurry-foam reactor. Surface coefficient values and the initial particle-size distributions of hydrated lime have been determined experimentally. A design chart has been presented in the form of a figure. Key words: Design, precipitated calcium carbonate, series reactors, slurry-foam reactor.

Carbonation of Steel Slag for CO2 Sequestration: Leaching .

Carbonation of basic oxygen furnace slag with metalworking wastewater in a slurry reactor. International Journal of Greenhouse Gas Control 2013, 12, 382-389. DOI: 10.1016/j.ijggc.2012.11.026. Marius Bodor, Rafael Santos, Tom Gerven, Maria Vlad.

Factors Influencing CO2 and Energy Penalties of CO2 .

It can be seen that carbonation reactor is the largest contributors to CO 2 penalty and this is due to the low (high) slurry concentration (water content). 5 Conclusions In this paper, we evaluate five scenarios for a direct aqueous pressure carbonation (DAC) process as described in published literature.

Continuous precipitation of calcium carbonate using .

The effect of various operating parameters such as Ca(OH)2 slurry concentration, CO2 flow rate and Ca(OH)2 slurry flow rate on the particle size of CaCO3 was investigated. The calcium carbonate particles were characterized by Fourier transform infrared (FTIR), wide angle X-ray diffraction (WXRD) and particle size.

Frontiers | Performance of Separation Processes for .

After carbonation, the slurry from the reactor was preliminarily filtered using an identical filtration system as described above for separating the PCC from the liquid. Both slurries were produced with identical parameters except for the carbonation reactor temperature, which was set to 20°C for precipitating rhombohedral calcite and 55°C .

CiteSeerX — Design of a Slurry-foam Reactor System for the .

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Design methodology for a system of slurry-foam reactors in series for the manufacture of precipitated calcium carbonate is presented. Contributions of both the storage and foam sections of the slurry-foam reactors, towards the conversion of reactants, have been taken into account in the development of the mathematical .

3000l reactor, 3000l reactor Suppliers and Manufacturers .

3000L slurry carbonator reactor. US 3000- 200000 / Set 1 Set (Min. Order) 10 YRS . Weihai Global Chemical Machinery Mfg Co., Ltd. 96.7%. Contact Supplier ··· Stirred tank reactor .

Chemical reactors - Essential Chemical Industry

Tubular reactors are used, for example, in the steam cracking of ethane, propane and butane and naphtha to produce alkenes. (b) Fixed bed reactors. A heterogeneous catalyst is used frequently in industry where gases flow through a solid catalyst (which .

Wet-Limestone Scrubbing Fundamentals | Power Engineering

A generic wet-limestone flow diagram is outlined in Figure 1. (The diagram also applies for systems using hydrated lime-Ca(OH 2)-as the reagent, where equipment and vessel sizes are smaller.)Wet .

Wastewater Carbon Supplement Comparison Study - Aquafix

Feb 11, 2019 · Samples of Mixed Liquor were removed from the reactor. The volume removed from the reactor was replaced with tap water to keep the 5L volume of the reactors consistent. Reactors were wasted as needed to keep MLSS at 1500 mg/L. Sludge Volume Index. 1L of the mixed liquor was removed from the reactor and allowed to settle for 30 minutes.

Investigation of a Two-Stage Aqueous Reactor Design for .

test, a sample of the slurry from reactor 1 was filtered, dried, and analyzed for fraction carbonation, as described previously.[3] Kinetic data from this earlier

Conceptual Process for Dimethyl Carbonate Synthesis

Conceptual Process for Dimethyl Carbonate Synthesis The synthesis of dimethyl carbonate (DMC) by oxidative carbonylation of methanol is typically carried out in one of two ways. ENIChem uses a liquid phase system with the reaction conducted in a slurry reactor, containing copper chloride "catalyst" suspended in liquid methanol.

phosphoric acid plant reactor agitator design

The phosphoric acid reactor had a lot of small vertical agitators, resulting in a rather homogeneous slurry. 2. Vertical side agitators (Plenty) are used in a local refinery without leakage, so I suppose suspended gypsum particles destroy the side agitator seal causing leakage from phosphoric acid tank.

Comparative Life-Cycle Assessment of Slurry and Wet .

CO 2 compression; mixing within the carbonation reactor. Besides, the treatment of the wastewater produced from the slurry phase reactor was also accounted for. For the simpler wet route the process modelled with LCA included again grinding of the residues to the desired size and CO 2 compression, whereas no heat recovery step was included.

(PDF) Comparison of the efficiencies of sulfur dioxide .

the pH-measuring point and the reactor (21), fresh slurry CcaCoI = 15 wt%. The SO,-removal efficiency changed tank (19), circulation slurry tank (18) low gas flow of from 67.3 to 89.1%.

Carbonation Kinetics of Waste Concrete

natural carbonation. Isothermal waste concrete dissolution experiments were performed in an in-house manufactured 140 ml PTFE batch reactor which was temperature controlled and stirred. Ultrapure de-ionized water was used as the solvent. While the liquid phase was in batch mode, simulated flue gas (CO 2 in N 2) of different compositions was bubbled

Integrated mineral carbonation reactor technology for Energy

mineralization reactions. For this reason, an autoclave reactor is a common tool to enhance slurry carbonation. However, traditional continuously tank stirred reactors (CSTRs) have a large energy demand (and resulting CO 2 emissions) that make mineral carbonation unattractive as .

A Novel Slurry-Based Biomass Reforming Process Final .

The final stage of the project was the construction and testing of a demonstration unit for H2 production. This continuous flow demonstration unit consisted of wood slurry and potassium carbonate feed pump systems, two reactors for hydrolysis and reforming, and a gas-liquid separation system.

Notes - INTRODUCTION TO SLURRY REACTORS | Altamira .

Many industrial processes involve multi-phase systems, and perhaps the most complex is the gas-liquid-solid or slurry reactor. The complexity of this system arises from the simultaneous presence of mass and heat transport involving all three phases in addition to reaction. Although the transport phenomena can often be theoretically evaluated .

(148i) Carboxylation of Propylene Oxide to Propylene .

to Propylene carbonate in slurry and trickle bed reactorS Pallavi Bobba, Xin Jin, Bala Subramaniam and Raghunath V. Chaudhari. Center for Environmentally Beneficial Catalysis, Department of Chemical & Petroleum Engineering, University of Kansas, 1501 Wakarusa Dr., Lawrence, KS 66047 CO 2 is naturally available carbon source and

CO2 Mineralization and Utilization using Steel Slag for .

Flue Gas CO 2 Mineralization via Accelerated Carbonation. Reaction time (i.e., hydraulic retention time), associated with slurry flow rate and rotating speed, is one of the important design parameters for accelerated carbonation in a rotating packed bed reactor, since it is significantly related to carbonation conversion of alkaline wastes, capacity of CO 2 mineralization and energy .

slurry reactor, slurry reactor Suppliers and Manufacturers .

WHGMC 3000l slurry carbonator reactor Automatic New Impeller Paddle Box Thermal Oil engineers available to service . US 3000- 200000 / Set 1 Set (Min. Order) 10 YRS . Weihai Global Chemical Machinery Mfg Co., Ltd. 93.8%. Contact Supplier .

A model for a foam‐bed slurry reactor - Asolekar - 1988 .

Susanta K. Jana, Ashok N. Bhaskarwar, Gas absorption accompanied by chemical reaction in a system of three-phase slurry-foam reactors in series, Chemical Engineering Research and Design, 10.1016/j.cherd.2010.09.011, 89, 6, (793-810), (2011).

Wet-Limestone Scrubbing Fundamentals | Power Engineering

A generic wet-limestone flow diagram is outlined in Figure 1. (The diagram also applies for systems using hydrated lime-Ca(OH 2)-as the reagent, where equipment and vessel sizes are smaller.)Wet .

Frontiers | Accelerated Carbonation of Steel Slags Using .

In the carbonation reactor, the slurry is contacted with carbon dioxide, already pressurized in a multi-stage compressor (unit G) to the desired pressure, and the carbonation reaction takes place. The slurry leaving the reactor passes through unit D to heat recovery and finally is separated (unit H) producing a solid product and a liquid stream.

Synthesis of Dimethyl Carbonate from Methanol, Carbon .

Production of diethyl carbonate from ethanol and carbon monoxide over a heterogeneous catalytic flow reactor. Fuel Processing Technology 2003, 83 (1-3), 27-38. DOI: 10.1016/S0378-3820(03)00079-1.