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 ...
Presentation of a dry black liquor gasification process …
ried out pilot plant tests in a fluid bed reactor processing 1 kg of dry solids per hour [17].Thelliander has done comple- ... favored in the future in many countries, which could make green power produc-tion profitable in plants with black liquor gasification. As an alternative, chemicals like DME,methanol,and ammonia may be produced using the ...
A new chemical recovery system based on indirect …
The results of pilot-scale test performed on jute black liquor from an Indian mill is reported in this Paper. Steady-slate chemica I recovery and gas production during the test are also discussed. • Introduction : The classical method of recovering chemical from the black liquor generated from chemical put ping of bamboo and hard wood ...
Effects of added materials on black liquor combustion
white liquor, is used to adjust the black liquor viscosity, mak - ing the liquor easy to pump and spray into the boiler. Because of its high heating value, tall oil soap (a byproduct from the black liquor evaporation plant) is burned with black liquor to increase the boiler steam production capacity and to recover the sodium and sulfur [2].
Pilot scale recovery of lignin from black liquor and …
Pilot scale experiments were performed at the Bio Base Europe Pilot Plant using the setup shown in Scheme 1. ... During the test, no additional sample was placed on the filter. ... To identify potential stumbling blocks in the recovery of lignin from pulp mill black liquor, a preliminary pilot scale experiment was performed.
(PDF) Utilization of black liquor as concrete admixture and …
The utilization of black liquor, produced by the pulp and paper industry in Egypt, as a workability aid and set retarder admixture has been investigated. This approach may help eliminate the ...
Physical properties of kraft black liquor. Final report. Phase I
A strategy for pulping to supply test liquors was developed, and a statistically designed pulping experiment was specified for a Southern softwood species. Arrangements were made for …
Design and construction of a pilot plant to extract lignin …
In mills limited by the recovery boiler capacity, the extraction of lignin from the black liquor allows to increase the cellulose production by reducing the heat load of the boiler. The lignin could be …
CHARACTERIZATION OF EUCALYPTUS BLACK LIQUOR
In this work, 13 sets of black liquor samples were collected in the evaporation plant of an industrial mill recovery unit. Each set contains samples of three different process streams:
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 by carbonation …
Effect of Lignin Separation to Black Liquor and Recovery …
Table 3, Black liquor composition at various lignin removal rates. Lignin removal 0 % 5 % 10 % 15 % 20 % 25 % 30 % Heating value of BLDS kJ/kg 14148 13974 13795 13610 13419 13222 13018
(PDF) A comprehensive review on pilot plant scale up and …
A tiny, basic lab scale formula will be tested on a replica of the intended plant in the pilot plant before spending a significant amount of money on a production unit.
What are the properties of black liquor?
Solubility of inorganic substances in black liquor – The inorganic substances in the black liquor are mostly bound to the dissolved organic compounds. A minor portion of the inorganic substances such as NaOH, Na 2 …
The role of pilot and demonstration plants in technology …
A demonstration plant is defined as a plant that can be operated continuously over an extended period of time; it also demonstrates the entire production process and is embedded in a value chain. 1 These definitions, however, say little about what the actor networks at and around the plants accomplish and how learning processes can be strengthened.
Pilot Plant Testing
Every pilot plant test begins with an in-depth engineering evaluation, including feasibility lab scale testing, process simulation, equipment configuration, and preparation of a preliminary test protocol. Utilizing the data provided in a pilot plant questionnaire, our team of experts conducts thorough pre-test planning to ensure that every ...
Lignin Prepared by Ultrafiltration of Black …
The ultra-filtrated lignin was prepared on CleanFlow Black´s pilot plant located on a Swedish kraft mill pulping m ixed softwood ( Picea abies and Pinus sylvestris ). The black
Properties, Composition, and Analysis of Black Liquor
As explained by Barlianti et al., (2016), black liquor had pH of 13.09, COD reached 145,000 mg/L, and Total Suspended Solid (TSS) up to 36,550 mg/L. Black liquor characteristics contained 78% of ...
Pilot-scale nanofiltration and techno-economic evaluation of …
The membrane was chosen based on the results of previous screening tests on laboratory scale. ... a MWCO of 1 kDa. Filtration took place in a membrane pilot plant at the evaporation plant of a pulp mill in northern Sweden. The feed was a mixture of 70% softwood and 30% hardwood KBL. The KBL used was a mixed black liquor with a dry solids ...
Desiliion Of Black Liquor Pilot Plant Tests
This paper reports on pilot plant data obtained from a prototype ser-pentine pipeline reactor used to study the effects of operating vari-ables on the complete oxidation of white liquor.
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 JOURNAL …
Performance of a Pilot-Scale Entrained-Flow Black Liquor …
Pilot-scale entrained flow gasification experiments were carried out at the 3 MWth LTU Green Fuels black liquor gasification (BLG) plant using approximately 140 tons of Kraft black liquor (BL ...
(PDF) Utilization of black liquor as concrete admixture and …
The black liquor from the Edfu pulp mill was diluted using distilled water to reach 27% total solid content to be comparable with Quena black liquor, while that of Rakta was taken from the effluent of the concentrating pilot plant with 10% total solid content.
Biofuels: Is black liquor the key to a brighter future for the pulp
The raw material input is black liquor from Smurfit Kappa, amounting to about 1% of the mill's total black liquor or 20 tons per day of dry solids. It is important to note that, today, this line is only making raw syngas that now is simply burned in a flare above the plant.
RECENT ADVANCES IN THE UNDERSTANDING OF …
pilot plant (called DP-1) that gasifies the ... was tested in a standard sedimentation test for green liquor, it was observed that the rate of sedimentation and filterability was on par ... Black liquor ultimate analysis (on dry sample) C 33.8 31.3 %wt H 3.6 3.4 %wt O 35.1 37.3 %wt ...
Assessment of scaling risk in a pressurized black liquor …
The behaviour of non-process elements (NPEs) and the formation of deposits in a pressurized chemical recovery system with a black liquor gasifier are in many ways different from those of a ...
Evaporation of lignin-lean black liquor
in the black liquor evaporation plant. By removing the organ - ic lignin, the viscosity of the black liquor will change. Viscos - ity is the single most important parameter determining the heat transfer in black liquor evaporators, and thus, the heat transferred will be largely affected by removing lignin from the black liquor.
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 ...
State of the Art in Black Liquor Gasification Technology
Black liquor, a biomass-based fuel formed in the paper making process, has traditionally been burned in recovery boilers to generate energy and recover the inorganic chemicals that comprise about ...
(PDF) Eucalyptus black liquor
Eucalyptus black liquor viscosity versus spindle rotational speed for each set analyzed, at 293.15 K, using Brookfield viscometer with UL adapter, for EPI samples.
Pilot scale recovery of lignin from black liquor and advanced
A pilot scale procedure for the mild soda pulping of Miscanthus x giganteus chips and, the subsequent lignin recovery from the black liquor, has been developed. In a first pilot …