COMPARISON OF REFRACTORY PERFORMANCE IN …

The first black liquor gasifier was a Swedish demonstration plant, Frövi, that processed 80 tons of dry solids/day between 1991-1996 built by Kvaerner Chemrec. A HPHT pilot …

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Desilication of Wheat Straw Black Liquor

Pilot plant trial on a capacity of 1-3 m 3 extracted black liquor/h, which roughly corresponding to 3 tons pulp/day. This technology is in the pilot plant stage, the …

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Utilization of black liquor as concrete admixture and set retarder …

Slump test. The slump test was carried out as a measure of the workability of the fresh concrete. The fresh test sample was taken from the pan mixer immediately after the mixing procedure was completed and poured into a metal slump cone with a bottom diameter of 200 mm and a top diameter of 100 mm and a height of 300 mm.The …

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Presentation of a dry black liquor gasification process with …

CONCLUSIONS The feasibility of the new process has been substantiated in a pilot plant, and the dry solids black liquor gasification process should be feasible on a large scale.Approximately 65% of the sulfide is evaporated after sulfate reduction without TiO2 addition, and significantly more sulfide is evaporated with TiO2 added.

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Settling and filtration characteristics of carbonated black …

11 Passinen B K, Lignin recovery from black liquor, Proc Symp Recovery of Chemicals, Helsinik, 1968. 12 Kopfmann K & Hudeczek W, Desilication of black liquor: Pilot plant tests, TAPPI J, 71 (1988) 140-177. 13 Chemical recovery plant for small pulp mills using non-wood raw materials, UNIDO/CPPRI Terminal Report Project

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Black liquor gasification pilot plant in Vasteras, Sweden.

Download scientific diagram | Black liquor gasification pilot plant in Vasteras, Sweden. from publication: A combined physical and statistical simulation model for Black Liquor Gasification | In ...

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Desilication of Black Liquor

1. Status of Commercial Commercial Semi pilot Semi pilot process demonstration scale scale scale 2. Initial silica in the black liquor. gil 3.7 3.7 12.3 3.7 3. Final silica in the …

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Concerning operational aspects in supercritical water gasification …

At 600 °C tests were interrupted due to precipitation of salts and consequent clogging. Abstract. Kraft Black Liquor (KBL) is an aqueous solution of lignin residues, ... al. [18] investigated the gasification of rejects and de-inking sludge in a circulating fluidized bed (CFB) gasifier pilot plant, Marklund et al. [19] proposed a computational ...

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Stirred cell ultrafiltration of lignin from black liquor …

The study was concluded with the recommendation of conducting additional experiments using a pilot plant in a continuous mode. SIGNIFICANCE: • The extraction of lignin from black liquor was successfully carried out and extraction efficiencies as high as 86% were obtained. The results can be used to extend the ultrafiltration of black liquor ...

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(PDF) Desilication of agro based black liquor using bubble …

Black liquor, obtained from paper production using agricultural residues, contains additional silica, removal of which or desilication is complex process. ... 1972, 89. 8 Kopfmann K & Hudeczek W, Desilication of black liquor: pilot plant tests, TAPPI J, 71 (1988) 139. 9 Chemical recovery plant for small pulp mills using non-wood raw materials ...

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Bio-refinery system in a pulp mill for methanol production …

Black liquor gasification (BLG) for bio-fuel or electricity production at the modern pulp mills is a field in continuous evolution and the efforts are considerably driven by the climate change, fuel security, and renewable energy.This paper evaluates and compares two BLG systems for methanol production: (i) oxygen blown pressurized …

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GitHub

{"payload":{"allShortcutsEnabled":false,"fileTree":{"116":{"items":[{"name":"0 wet grinders.md","path":"116/0 wet grinders.md","contentType":"file"},{"name":"00 by ...

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Desilication of black liquor: pilot plant tests

Desilication of agro based black liquor using bubble column reactor. S. Mandavgane G. Paradkar D. Subramanian. Agricultural and Food Sciences, Environmental Science. 2006. Black liquor, obtained from paper production using agricultural residues, contains …

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Initial black liquor properties from bioethanol pilot plant

Download Table | Initial black liquor properties from bioethanol pilot plant from publication: The Enhancement of Black Liquor Treatment by Applying a Natural Flocculant and Converting Its Sludge ...

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LignoForce System

The technical feasibility of producing lignin from black liquor using the LignoForce TM system can be evaluated initially with small amounts of black liquor at the laboratory and pilot plant levels at our facilities in Pointe-Claire, Quebec. Further investigations can then be conducted on a larger scale at FPInnovations' Thunder Bay demo plant.

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MODELLING AND DESIGN OF A DRY BLACK LIQUOR GASIFICATION PROCESS

The bag house worked very well during the pilot plant tests, but then the solids and the gas had to be cooled to approximately 130 oC before the bag house. ... driedTiO2 ST Reactor Filter GT TiO2 dryer HEX Condensor Scrubber Lignin Dissolution of Na2O*TiO2 Filter Press Figure1 Black Liquor Gasification plant with direct caustization …

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Alkaline twin-screw extrusion pretreatment of

The continuous twin-screw extrusion pretreatment system was established in collaboration with Changhae Engineering Co., Ltd. (Korea) based on a previous study [17].The system consisted of seven units: a hopper, catalyst supply tank, twin-screw extruder, screw-type separator, BL tank, centrifuge, and BL recycling tank (Fig. 1), and …

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Kinetics of reed black liquor (RBL) pyrolysis from thermogravimetric

Thermal decomposition of straw black liquor seemed to happen in two different steps which temperature ranges were 200 to 550 o C and 550 to 900 o C (Gea et al. 2002). The pyrolysis of black liquor from the mixture of bamboo and hardwood included 3 stages (Wu et al. 2007). But there was only one weight loss stage during wheat straw pyrolysis ...

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Field Validation of a Pilot-Scale Black Liquor Membrane …

Concentrating black liquor is an energy-intensive step in recovering pulping chemicals and generating high-pressure steam from dissolved wood solids. About 7% of pulp and paper energy usage, or nearly 164 trillion British thermal units (Btu), is used to remove water from black liquor in U.S. kraft pulp mills per year. The black liquor membrane

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3-7 Tall Oil Soap Recovery

Pilot Plant Mill Figure 4.3.3 Impact of soap content in liquor on ... Impact of Black Liquor Soap Content on Pilot Evaporator Overall Heat Transfer 0 3 6 9 12 15 18 21 24 27 30 …

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Operating Experience of Black Liquor Desilication at …

Prior to the installation of the plant in depth pilot plant trials were conducted by CPPRI for finding out critical input parameters using their Pilot plant. The de-silication is achieved …

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Black liquor gasification phase 2D final report

The U.S. Department of Energy's Office of Scientific and Technical Information

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Black liquor gasification integrated in pulp and paper mills: A

The simulation models were based on tests in a pilot plant with a capacity of 1 tonne DS per day. The pilot plant was full scale in height, but with a diameter of 0.17 …

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Differential evolution-based optimization of corn stalks black liquor …

Introduction. Black liquor (BL) is one the most known by-products of the pulp and paper industry. It is highly appreciated for its caloric value as industrial fuel and correspondingly unattractive from the environmental point of view 1.Due to their environmental toxicity, both the chemical content and the colour of the black liquor …

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Modeling of Black Liquor Gasification

(CFBG). The CFBG process was tested at a demo-plant in Vasteras in a 0.5 m inner diameter reactor with 20 m height. LURGI built a number of coal gasification plants and ASEA became ABB and afterwards ABB acquired the American company Combustion Engineering in 1990. Then, black liquor gasification (BLG) became

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Co-gasification of black liquor and pyrolysis oil at high temperature

For black liquor, the combination of entrained flow technology and the catalytic effect of alkali in the black liquor has been shown to lead to low concentrations of methane and very low concentrations of tar (Landälv et al., 2014; Bach-Oller et al., 2017; Bach-Oller et al., 2017; Umeki et al., 2017).

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Figure 3 from Desilication of agro based black liquor using …

Desilication of black liquor: pilot plant tests. K. Kopfmann W. Hudeczek. Engineering. 1988; Les essais ont permis la conception et la construction d'une installation industrielle de traitement de la paille de riz et de la bagasse par le procede a la soude. 8. Save. Related Papers. Showing 1 through 3 of 0 Related Papers.

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CFD modelling of black liquor gasification: Identification of …

The black liquor load was set to 20 tons BLS/24h with a dry solids content of 75.2%. The rate of oxygen supply was set to 223 Nm 3 h −1, corresponding to an oxygen equivalence ratio (λ) of 0.38. The inlet temperature of the black liquor and oxygen were both set to 120 °C and the gasifier pressure was 30 bar. The black liquor was fed …

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Black-liquor gasification: Results from laboratory research and rig tests

Bioresource Technology 46 (1993) 145-151 BLACK-LIQUOR GASIFICATION: RESULTS FROM LABORATORY RESEARCH AND RIG TESTS Karl Saviharju Technicul Research Centre of l:Tnland (VTT), Laboratory of Fuel and t'rocess 1"echnology, PO Box 205, klN 02151 Espoo, l~Tnland Abstract Th& paper describes the …

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Remediation of the black-odor water body by aquatic plants with plant

For the first time, this study applied four aquatic plants to remediate the heavily polluted water from a black-odor water body in Daqing City, China, considering the impacts of the addition of PGPR. To demonstrate the operational feasibility, lab and pilot tests were performed. 2. Materials and methods2.1. Samples collection

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Desilication of black liquor: pilot plant tests, TAPPI …

Desilication of black liquor: pilot plant tests, TAPPI JOURNAL October 1988 Author: K. Kopfmann and W. Hudeczek Subject: TAPPI JOURNAL October 1988 Keywords: TAPPI …

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Black-liquor gasification: Theoretical and experimental …

Pilot-scale black-liquor-gasification tests at Tampella Power Inc. started early in 1991 and are con- tinuing. The main emphasis of these tests is to study the feasibility of the gasification process and to investigate the most important technical aspects related to black- liquor gasification and product-gas clean-up.

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Biofuels: Is black liquor the key to a brighter future for the pulp

In black liquor gasification (fig. 4 ), black liquor is injected in an atomized form into a high pressure, high temperature reactor with either oxygen or air as the combustion medium. The organic materials are gasified into raw synthetic gas (syngas) while the inorganic solids such as sodium and potassium fall to the bottom to be returned to ...

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