desilication of black liquor pilot plant tests

Settling and filtration characteristics of carbonated ...

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

get price

Pulp & Paper – NORAM Engineering and Constructors Ltd.

Pulp & Paper. NORAM offers a broad range of specialty technologies to the forest products industry. Our P&P Division has two key focus areas: the downstream beneficiation of forest products to extract increased value, and in System Closure methodologies, targeting chemical recovery and …

get price

Black Liquor - an overview | ScienceDirect Topics

The solubilities are also temperature dependent. In pilot plant tests, involving several species of nonwood plants, careful carbonation (with a bubble reactor) of black liquor containing 6 g/L silica followed by filtering in a filter press resulted in 90% of the silica being removed as …

get price

Comparison of Gas Quality from Black Liquor and Wood ...

Tel.: +46-21-151768 E-mail address: [email protected] The 8th International Conference on Applied Energy â€" ICAE2016 Comparison of gas quality from black liquor and wood pellet gasification using Modelica simulation and pilot plant …

get price

Development of a Technology for Desilication of Bamboo ...

A full-size demonstration desilication plant was erected. The bamboo black liquor desilication process has been fully implemented. Environmental and Economic Benefits. The desilication technology will enable many mills with chemical recovery to install lime sludge reburning, with a reduction of 60-70% of their solid waste disposal.

get price

Mill Integration-Pulping, Stream Reforming and Direct ...

@article{osti_1001224, title = {Mill Integration-Pulping, Stream Reforming and Direct Causticization for Black Liquor Recovery}, author = {Heiningen, Adriaan van}, abstractNote = {MTCI/StoneChem developed a steam reforming, fluidized bed gasification technology for biomass. DOE supported the demonstration of this technology for gasification of spent wood pulping liquor (or 'black liquor…

get price

Eucalyptus black liquor – dEnsity, viscosity, solids and ...

Eucalyptus black liquor – dEnsity, viscosity, solids and sodium sulfatE contEnts rEvisitEd Authors*: Melissa Tatiana Andreuccetti1 Brenno Santos 2Leite José Vicente 1Hallak d´Angelo *Authors' …

get price

Desilication of agro based black liquor and green liquor ...

DESILICATION OF AGRO BASED LIQUORS USING JET LOOP REACTOR . 609. Fig. 4 ⎯ % Lignin removal versus retention time for black liquor . Fig. 5 ⎯ % Silica removal versus retention time for green liquor . Desilication of green liquor . The operation and control of carbonation of GL is easier because of absence of co-precipitation of lignin.

get price

Controlling emissions from a black liquor fluidized bed ...

@article{osti_625637, title = {Controlling emissions from a black liquor fluidized bed evaporator (Copeland reactor) using a regenerative thermal oxidizer and a prefilter}, author = {Grzanka, R}, abstractNote = {This paper reports on an intriguing pilot …

get price

Eucalyptus black liquor – dEnsity, viscosity, solids and ...

Eucalyptus black liquor – dEnsity, viscosity, solids and sodium sulfatE contEnts rEvisitEd Authors*: Melissa Tatiana Andreuccetti1 Brenno Santos 2Leite José Vicente 1Hallak d´Angelo *Authors' references: 1. Department of Chemical Engineering Systems, School of Chemical Engineering, University of …

get price

Desilication of agro based black liquor using bubble ...

Keywords: Bubble column reactor, Black liquor, Delignification, Desilication IPC Code: B01J19/02 Introduction To make paper industry economical, recovery of spent chemicals from black liquor (BL) is essential. Major difficulty in pulping of non-woody fiber is the recovery of heat and chemicals from the cooking liquor, which contains silica.

get price

Operational efficiency of black liquor concentrators

The simulations were followed by pilot trials in the pulp mill. The purpose of the pilot trials was to identify the chemical compound that causes scaling and define which operational parameters would reduce the scale formation. In addition, the effect on the addition of tall oil brine to the feed-in black liquor was studied in the pilot plant.

get price

Efficient desilication by adsorption with aluminum salt ...

Full Article. Efficient Desilication by Adsorption with Aluminum Salt-modified Bentonite from Green Liquor. Tao Lin, a, * Xue Li, a, * Yongjian Xu, a,b,c Xuefeng Yin, a Dingjun Zhang, c and Yong Tian c The objective of this work was to investigate the possibility of using Na-bentonite as a raw material to produce aluminum salt-modified bentonite (AlMB) for desilication of green liquor.

get price

From wood to wheel and from black liquor to diesel | RISI ...

In September 2005 Chemrec started up its black liquor gasification development plant in Piteå. The purpose was to further verify and optimise this process at commercial pressure of 30 bar during extended operation, which has now reached in excess of 12,000 hours in a large pilot scale.

get price

Black liquor - Wikipedia

In industrial chemistry, black liquor is the by-product from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose fibers.. The equivalent material in the sulfite process is usually called brown liquor, but the terms red liquor, thick liquor and sulfite liquor are also used.

get price

Scenarios for Development of BioDME Supplies

Chemrec development plant Pilot tests in Chicago at IGT Gasification Module Full sized plant Source: UPM, Andritz, Carbona BioDME plant under construction Source: EBTP Chemrec Projects a. BioDME ~3 MW t / DME / Start-Up Sept 2010 b. Domsjö Biofuels ~200 MW t / DME and Methanol / Start-Up 2013 UPM Project a. Pilot testing at IGT, Chicago ~5 MW

get price

Corrosion Issues In Black Liquor Gasifiers

Pilot plant in Skoghall, Sweden Capacity of 10 tons dry solids/day Operated between 1994 and 2000 Accumulated about 1000 hr operating on black liquor Used refractory brick lining Development plant …

get price

Mitigation of Process Heat Exchanger Fouling: an Integral ...

TEST APPARATUS AND EXPERIMENTALPROCEDURESimilar laboratory test rigs have been used to investigate the in¯ uence of operating conditions on the foulingbehaviour of both, Kraft black liquor and Bayer liquor. Asimpli® ed schematic of the test rigs is shown in Figure 6.Detailed information is given in the literature 4,5.

get price

STAR process: A new, highly productive method of propylene ...

In black liquor produced from rice straw, high silica contents have been a major obstacle against operating a recovery system. A pilot plant was set up in Egypt to continue research work on a semi ...

get price

(PDF) The potential for bagasse pulping in Australia

These stages are: absorption of CO//2; conditioning of treated black liquor; separation of silica sludge from black liquor. After modifications to the system, the pilot plant obtained desilication ...

get price

Desilication in alkaline pulp processes - Dorr-Oliver ...

May 25, 1982· Black Liquor--liquor comprising organics resulting from the digestion of raw cellulosic plant material together with residual caustic, Na 2 CO 3 and NaHS. Green Liquor--liquor comprising dissolved Na 2 CO 3 ; the Na 2 CO 3 being a product (smelt or pellets) of the combustion of black liquor.

get price

Advanced biofuels and chemicals from black liquor (and ...

Advanced biofuels and chemicals from black liquor (and renewable electricity) ... • Black liquor energy flow rate ≈ 200 –400 MW per plant. Black liquoris an excellent gasification fuel • Veryhighalkali content, 20-30% water ... The LTU Green Fuelsdemo plant Pilot gasification Pilot …

get price

Pilot scale recovery of lignin from black liquor and ...

In this work, the pilot scale recovery of lignin from a black liquor derived from a mild soda pulping process of Miscanthus x giganteus chips is studied with the aim to develop a straightforward procedure that yields a high quality final product. A first pilot …

get price

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 quantitative figures shown above are estimations based on the pilot test. This technology is a long way from commercialization as it was only a small scale pilot …

get price

Development of viscometers for kraft black liquor. Final ...

This project phase addresses the following workscope: Conduct bench-scale tests of a low temperature, partial combustion gasifier; Prepare a gasifier pilot-plant preliminary design and cost estimate and prepare a budgetary cost estimate of the balance of the program; Outline a test …

get price

US4331507A - Desilication in alkaline pulp processes ...

In the alkaline digestion of silica-contaminated paper pulp raw material, an addition of aluminum oxide in the form of bauxite ore is made to the liquor, the aluminum oxide being present in the bauxite as a hydrated oxide such as Al 2 O 3 .H 2 O or Al 2 O 3 .3H 2 O, to insolubilize silica as a sodalite precipitate, and thereby minimize scaling evaporation, avoid undesirable increase in the ...

get price

Mechanism of Silica Precipitation by lowering pH in Chemi ...

Black liquor is a complex colloidal system obtained by chemical pulping process.It comprises of lignin,nearly 50% of the total organic and Silica approx.2-3% (OD basis) of the total inorganic components.Black liquor is fed to chemical recovery plant where silica causes scales in the channels and concentrators. Mechanism of silica precipitation,

get price

Pulp & Paper – NORAM Engineering and Constructors Ltd.

Pulp & Paper. NORAM offers a broad range of specialty technologies to the forest products industry. Our P&P Division has two key focus areas: the downstream beneficiation of forest products to extract …

get price
#
#