A Comprehensive Study on Proximate Chemical Composition of Melocanna baccifera (Muli Bamboo) and it's Suitability for Pulp and Paper Production

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Chaurasia SK ◽  
Singh SP
Keyword(s):  
Chemical Composition ◽  
Pulp And Paper ◽  
Paper Production ◽  
Proximate Chemical Composition ◽  
Comprehensive Study

scholarly journals Nitrate-Alkaline Pulp from Non-Wood Plants

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3673
Author(s):  
Kateřina Hájková ◽  
Jiří Bouček ◽  
Petr Procházka ◽  
Petr Kalous ◽  
Dominik Budský
Keyword(s):  
Czech Republic ◽  
Chemical Composition ◽  
Camelina Sativa ◽  
Agricultural Residues ◽  
Kappa Number ◽  
Pulp And Paper ◽  
The Czech Republic ◽  
Paper Production ◽  
Breaking Length ◽  
Black Mustard

Because there is a lack of wood resources in many countries, this work focused on pulp and paper production from the waste and agricultural residues of non-wood plants. The work aimed to pulp the nitrate-alkaline of black mustard (Brassica Nigra L.) and camelina (Camelina Sativa L.). The black mustard and the camelina were selected due to the expanding planted areas of these crops in the Czech Republic. To characterize the chemical composition of black mustard and camelina, cellulose, lignin, ash, and extractives were determined. Raw alpha-cellulose, beta-cellulose, and gamma-cellulose were also measured. The results showed that the content of lignin in non-wood plants is lower than that in softwoods. The cooked pulp was characterized by the delignification degree–Kappa number. Additionally, handsheet papers were made for selected samples of pulp. The handsheet papers were characterized by tensile index, breaking length, and smoothness and compared with commonly available papers.

scholarly journals WOOD QUALITY OF Pinus patula Schltdl & Cham FOR THE PULP PRODUCTION

2019 ◽  
Vol 43 (2) ◽  
Author(s):  
Karina Soares Modes ◽  
Raquel Lúcia Ludwig ◽  
Magnos Alan Vivian ◽  
Joni Stolberg
Keyword(s):  
Chemical Composition ◽  
Wood Quality ◽  
Basic Density ◽  
Morphological Characteristics ◽  
Pulp And Paper ◽  
Raw Material ◽  
Pinus Patula ◽  
Traditional Use ◽  
Paper Production

ABSTRACT The softwood pulp industry is based on the supply of Pinus taeda and P. elliottii woods, and competes for this raw material with other timber sectors. The study aimed to evaluate the wood quality of Pinus patula for pulp and paper production. Trees aged 14 years were obtained from a plantation located in Ponte Alta do Norte, State of Santa Catarina/Brazil. Discs were collected along the commercial height for determining the weighted basic density and its longitudinal variation in the trees, and the chemical composition. For the anatomical characterization, a disc was extracted from the base of each tree to determine the radial variation of tracheids morphological characteristics, and their quality indexes for the production of kraft pulp. The weighted basic density (365 kg.m-3) of the wood was low when compared with other species of the same genus. Regarding the tracheids morphology, a mean length of 2.37 mm; wall thickness of 5.49 µm; width of 40.32 µm and a lumen diameter of 29.09 µm were observed. The chemical composition of the species showed low contents of lignin (25.06%) and ashes (0.27%), compatible content of holocellulose (70.76%), and high content of extractives (6.24%) compared with conifers of traditional use. In general, P. patula species shows characteristics compatible with those traditionally used for the pulp and paper production, and it should be considered in more advanced studies with this species in this segment.

Lignin chemistry and topochemistry during kraft delignification of Eucalyptus globulus genotypes with contrasting pulpwood characteristics

Holzforschung ◽  
2014 ◽  
Vol 68 (6) ◽  
pp. 623-629 ◽  
Author(s):  
María Graciela Aguayo ◽  
André Ferraz ◽  
Juan Pedro Elissetche ◽  
Fernando Masarin ◽  
Regis Teixeira Mendonça
Keyword(s):  
Chemical Composition ◽  
Eucalyptus Globulus ◽  
Lignin Content ◽  
Middle Lamella ◽  
Kraft Pulping ◽  
Pulp And Paper ◽  
Wood Chips ◽  
Short Fibre ◽  
Paper Production ◽  
Cell Corner

Abstract Eucalyptus globulus Labill. is a short-fibre resource for pulp and paper production. Ten different E. globulus genotypes with varied pulpwood quality and chemical composition were evaluated under kraft pulping conditions. Characterisation of the wood and pulp samples by thioacidolysis indicated that the content of syringyl units in β-O-4 linkages (S-β-O-4) was distinct for the studied genotypes. The highest S-β-O-4 levels were detected in the samples with the lowest original lignin and highest glucan levels. This group of samples provided the pulps with the lowest final lignin content at higher yields. UV microspectrophotometric (UMSP) evaluation of the wood chips revealed that the samples with the lowest lignin levels have the lowest UV absorbances at 278 nm (A278 nm) in the secondary walls (S2). During kraft pulping, lignin from the S2 was dissolved, whereas lignins from the middle lamella and cell corner lignin was not removed not even for prolonged reaction periods, independently of the evaluated genotype. The A278 nm values of the S2 were significantly lower in the pulps from the genotypes with less original lignin content.

scholarly journals Waste management from pulp and paper production in the European Union

2009 ◽  
Vol 29 (1) ◽  
pp. 293-308 ◽  
Author(s):  
M.C. Monte ◽  
E. Fuente ◽  
A. Blanco ◽  
C. Negro
Keyword(s):  
European Union ◽  
Waste Management ◽  
Pulp And Paper ◽  
The European Union ◽  
Paper Production

scholarly journals Assessment of the possibility of using the method of sludge-lignin dehydration of the Baikal Pulp and Paper Mill by the freeze-thaw method

2018 ◽  
Vol 7 (2.23) ◽  
pp. 114 ◽  
Author(s):  
DI Stom ◽  
GO Zhdanova ◽  
SA Potekhin ◽  
AE Balayan ◽  
MN Saksonov Saksonov ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Physicochemical Properties ◽  
Water Solution ◽  
Organic Fertilizer ◽  
Paper Mill ◽  
Pulp And Paper ◽  
Eisenia Foetida ◽  
Pulp And Paper Mill ◽  
Freeze Thaw ◽  
Principal Possibility

An estimation of the possibility of dehydration of sludge-lignin of the Baikal Pulp and Paper Mill by the freeze-thaw method was carried out. Change of sludge-lignin structure, physicochemical properties and chemical composition after freeze-thaw are shown. Toxicity and chemical composition of the water solution separated from the sludge-lignin during its freeze-thaw is estimated. An increase in the rate of germination of seeds of the cress in the soil with the addition of the frozen-out sludge-lignin in the ratio "sludge-lignin-soil" 1:3-1:4 is shown. Possibility of application and recommendations for the use of freezed out sludge-lignin as an organic fertilizer is considered. Principal possibility of the worm transformation of sludge-lignin, previously dehydrated by the freeze-thaw method, by red Californian worms Eisenia foetida Andrei Bouche (1972) is shown. The issue of prospects for processing this waste in a fertile bio-soil is discussed. The latter can later be used for recultivation of the territory of the sludge accumulator plots of the Baikal Pulp and Paper Mill.  

scholarly journals Deriving Wealth from the Dry Matter of Some Under-Utilised Plant Parts

2020 ◽  
Vol 8 (02) ◽  
pp. 293-299
Author(s):  
Otoide J. E.* ◽  
Ihinmikaiye, S. O. ◽  
Otoide, T. F.
Keyword(s):  
Carica Papaya ◽  
Raw Materials ◽  
Slenderness Ratio ◽  
Pulp And Paper ◽  
Panicum Maximum ◽  
Wealth Creation ◽  
Plant Materials ◽  
Suitable Alternative ◽  
Paper Production ◽  
Production Industry

The possibility of creating wealth in pulp and paper industry from the underutilized dry matters of the leaf sheaths of the pseudostem (Musa paradisiaca and M. sapientum), leaf stalk (Carica papaya) and stems (Panicum maximum and Andropogon tectorum) have been established from the anatomical parameters and indexes (fibre lengths and diameters, lumen width, cell wall thickness, Runkels ratio, flexibility coefficient (%) and slenderness ratio) of the fibres using standard procedures. Results obtained revealed that the Runkels ratio of the fibres in the five dry matters were 0.60, 0.44, 0.40, 0.87 and 0.93 for Musa sapientum, M. paradisiaca, Carica papaya, Panicum maximum and Andropogon tectorum respectively. These values, each been less than 1 (˂ 1) recommends each of the dry matters as suitable alternative source of raw materials for pulp and paper production industry. It was recommended that these dry plant materials be henceforth harnessed as alternative sources of raw materials for pulp and paper production industry as another means of wealth creation instead of allowing them to waste and cause environmental nuisance.

scholarly journals INFLUENCES OF LOCAL RESISTANCES OF TECHNOLOGICAL CHANNELS OF PULP AND PAPER PRODUCTION ON THE OPERATION OF VORTEX FLOW METERS OF WATER AND WATER SUSPENSIONS OF LOW CONCEN-TRATIONS

2019 ◽  
pp. 307-314
Author(s):  
Iuriy Davydovich Alashkevich ◽  
Mikhail Semenovich Lur’e ◽  
Ol'ga Mikhaylovna Lur’e ◽  
Aleksandr Sergeyevich Frolov
Keyword(s):  
Strouhal Number ◽  
Measurement Range ◽  
Pulp And Paper ◽  
Hydrodynamic Resistance ◽  
Experiment Planning ◽  
Straight Section ◽  
Local Resistance ◽  
Paper Production ◽  
Water Suspensions ◽  
Low Concentrations

The question of the features of operation of submersible vortex flowmeters of water and water suspensions of low concentrations in pulp and paper production, which are installed in process pipelines with local hydraulic resistance, is considered. It is shown that with an insufficient straight section after local resistance, an additional error appears, which appears due to the influence of local resistance (transition or retraction) on the symmetry of the velocity diagram in front of the device. This error arises due to a change in the Strouhal number (Sh) and is related to the measurement method. The Strouhal number begins to depend on both the distance to the local resistance and the fluid flow rate. Identify this relationship and is dedicated to this work. Recommendations on the length of straight pipeline sections in front of the flow meter have been developed, which can be significantly reduced by limiting the range of operating flow rates. The studies were carried out by the method of numerical simulation of hydrodynamic processes with subsequent processing of the results by the method of experiment planning. The dependence of the number Sh on the length of the relative diameter of the pipeline L/ for hydrodynamic resistance in the form of a transition is presented. This error shows that the measurement error is within 2% already with a straight section in front of the flowmeter equal to 5–7 diameters. The response surface for pipe bends (rotations) is considered at 90º from which it follows that while maintaining the length of the straight section within 5–7 pipe diameters, it is necessary to narrow the measurement range of the instruments 2.5 times.

A Study on Fiber Characteristics of Melocanna baccifera (Roxb.) Kurz for the Suitability of Pulp and Paper Production

2016 ◽  
Vol 39 (1) ◽  
pp. 27-30
Author(s):  
Shardesh Chaurasia ◽  
Satya Singh ◽  
Sanjay Naithani
Keyword(s):  
Pulp And Paper ◽  
Paper Production ◽  
Fiber Dimensions

Fiber dimensions of Melocanna baccifera was examined to assess their suitability for pulp and paper production. Fifty mature culms of M. baccifera were obtained from Forest of Silchar, Cachar District of Assam, India. Samples taken from the top, middle and basal portions were thoroughly mixed and used in the study.

A Study on Slag Composition inside Biomass Boiler System

2020 ◽  
Vol 901 ◽  
pp. 113-117
Author(s):  
Jirasak Tharajak ◽  
Noppakun Sanpo
Keyword(s):  
High Temperature ◽  
Chemical Composition ◽  
Slag Composition ◽  
Pulp And Paper ◽  
Critical Factors ◽  
Temperature Zone ◽  
Biomass Boiler ◽  
Factors Influencing ◽  
Steel Industries ◽  
Reliability And Availability

It was found that slagging in high temperature zone is one of the major problems in the refinery, petrochemical, pulp and paper, and steel industries; especially in biomass and coal pulverized power plant. Slagging conditions are critical factors influencing reliability and availability on a biomass utility boiler. In this study, several types of slagging were collected for chemical analysis. It was revealed that the chemical composition and other properties of received slagging showed unique results based on the type of feedstock fuel materials.

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