the innovation process in pulp and paper making 1980 1995

... English and Vietnamese They are mainly taken from the following popular newspapers in English such as the Guardian, the BBC, the NYTimes, the Independent The data in Vietnamese are mainly taken ... utterance: initial, medial and final in the MenP Most MAs in English and Vietnamese can assume the initial position as thematic mood adjuncts expressing probability, certainty and intensity and a ... claims and they use and distinguish MAs in the three-type MenP 5.3 LIMITATION OF THE THESIS AND FURTHER STUDY The study has just addressed the issues of MAs in the MenP but has not stressed on other...

Ngày tải lên: 26/11/2013, 13:17

... dismantling the entire rotating unit of the pressure-grinding machine (shaft, grinding stone, bearings and seal), resulting in at least three days of lost production, including shutting down and ... for the individual setting and monitoring of pressure and flow rate at the seal 16 The costs of water and sealing water management have become increasingly important issues in the paper and pulp ... improving the surface quality and printability of the paper is coating In this operation a coating paste comprised of pigments and binding agents is applied to the surface of the raw paper In terms...

Ngày tải lên: 22/02/2014, 09:20

... contributing in some degree to the overall process fluctuation Finding the origins of process fluctuations involves determining the mutual significance of the various fluctuation sources in the process ... experience from pulp and paper industries were recruited They had been trained during a eight week time period, half day in the simulator, while the other half being out in the mill looking at the real ... of the Action is to promote the development and application of modelling and simulation techniques in pulp and paper manufacturing processes The main benefit will be a better understanding of the...

Ngày tải lên: 09/03/2014, 01:20

... itself along pulping process lines: chemical pulping (e.g., kraft chemical pulping), mechanical pulping, and semichemical pulping The pulping process affects the strength, appearance, and intended ... PULP AND PAPER MANUFACTURING MILL IN INDIA Growth Pattern The pulp and paper mill sector in India is one of the oldest industries The first paper manufacturing mill was commissioned in 1812 in ... of the resultant paper product Pulping processes are the major source of environmental impacts in the pulp and paper industry; each pulping process has its own set of process inputs, outputs, and...

Ngày tải lên: 24/03/2014, 05:20

... years now in the Netherlands In planning investments in the pulp and paper industry, including investments in innovation, the question is no longer only in what to invest, but increasingly also ... sector in more detail Innovation dynamics in pulp and paper Technical and Environmental Innovation In the pulp and paper industry, as in other industries, it is useful to make a distinction ... drawing-up individual innovation plans on the basis of this agenda Innovation dynamics in pulp and paper 13 ogy in the Dutch paper industry has been retarded by increasing uncertainty in the...

Ngày tải lên: 01/04/2014, 00:20

... roughly, the energy used in the PPI corresponds to 4% of the total energy use and 14% of the industrial energy use (Eurostat 2009) In Sweden and Finland, two of the main pulp and paper producers in ... paper) industry Introduction Paper VIII Excellent knowledge regarding the processes within the pulp and paper industry Model Paper III Research theme The papers are based on data for a typical Scandinavian ... describing the technologies and system solutions which are included in the pathways analysed in the latter part of the thesis As stated in the introduction to this thesis, the PPI and especially the...

Ngày tải lên: 22/02/2014, 09:20

... pulping and the paper making In the pulping phase the cellulose raw material must be processed to free fibers with suitable properties for paper product The paper making is the continuous process ... volume of output The sources of the wastewater in the pulp and paper industry come from chipping, pulping, rinsing, chemical recovery, bleaching and paper making process ( STOLL, 1995) NEMEROW (1978) ... consisting of forming slurried pulp in sheet form then pressing, drying, calendering The simplified flow diagram of pulp and paper production process is shown in Figure 2.1 2.1.1 Pulping The pulping...

Ngày tải lên: 09/03/2014, 01:20

... energy demand in mechanical pulping First EcoPaperTech, an International Conference on Papermaking and Paper- Machine Technology: 303-314 (1995) 14 Energy Cost Reduction in the Pulp and Paper Industry, ... Existing mills frequently consist of several pulping and papermaking production lines, installed at 10- or 20-year intervals since construction of the original mill In many cases the original ... segments of the Canadian pulp S:\25784\English\Energybk-e imega.vp 14 mars, 2003 11:34:26 Energy Cost Reduction in the Pulp and Paper Industry Energy Cost Reduction in the Pulp and Paper Industry...

Ngày tải lên: 18/03/2014, 02:20

... cooking liquor clarification operations, in the maintenance of the plant and also in the treatment of fresh water and wastewater 4.2 Papermaking using virgin fibre The waste generated in a paper ... content is used and the ash resulting from incineration of the sludge remains in the product The inorganic substance of the ash of the incinerated sludge is also a compound of the cement clinker This ... when the paper mill and the brick cement (or brick) manufacturing industry are in the neighbouring area and the latter has the capacity to use the sludge in its process (IPPC, 2001) In the case...

Ngày tải lên: 18/03/2014, 02:20

... manufacturing, some bleaching of pulp and paper, and other industrial processes involving chlorine and other halogens In the U.S., municipal and medical waste incineration are the dominant known ... Dioxin from Pulp and Paper and Lead in Soil at Mining Sites i Abstract This paper discusses EPA’s acquisition and use of science in addressing dioxins (and other organochlorines) from the pulp and ... furans, and other organochlorines in the pulp and paper manufacturing process The technology-based approach proposed by the agency involves: 1) substituting elemental chlorine with chlorine dioxin...

Ngày tải lên: 24/03/2014, 05:20

... say, the activities involved in pulping and recovered paper processing and those involved in papermaking may be undertaken separately or in combination on the same site Both pulp mills and paper ... refiners The characteristics of the pulp can be affected by increasing the process temperature and, in the case of refining, by the chemical pre-treatment of the wood chips The pulping process in ... covers the processes involved in the production of pulp and paper in integrated pulp and paper mills as well as for non-integrated pulp mills (market pulp) and non-integrated papermills using purchased...

Ngày tải lên: 01/04/2014, 00:20

... • On the other hand, for the pulp and paper industry the best available techniques cannot be defined solely by describing unit processes Instead, the whole installations must be examined and dealt ... de-inking Recovered paper processing systems vary mainly according to the paper grade to be produced e.g packaging paper, newsprint, testliner, or tissue paper Generally, recovered paper processes ... Industry The pulp for paper making may be produced from virgin fibre (wood) by chemical or mechanical means or may be produced by the re-pulping of recovered paper In the pulping process the raw cellulose-bearing...

Ngày tải lên: 01/04/2014, 00:20

... Ripasa and International paper are integrated producers of the writing and printing paper By calculating the average of the three Brazilian companies and comparing with the international Paper ... According to the empirical findings, the hypothesis H.1 is valid for some spillovers channels that are the forward linkages and the demonstration effect, being indefinite for the indicator of innovation ... are linked to the pulp production We tried to choose the indicators that better express the environmental problems of the pulp and paper industry in the industrial phase such as: the high demand...

Ngày tải lên: 22/02/2014, 09:20

... The input boundary is the wood receiving facility The output boundary is the inlet of the chip bin The area includes chip piles and chip screening 43 Kraft and sulphite pulping The chemical pulping ... Calendering: On-line, Off-line, None • Coating: On-line, Off-line, None Printing and Writing Papers Kraft Papers Tissue and Specialty Papers Building Paper Board Machines • Wet end: Cylinder former, ... the TMP and paper machine areas minus the thermal energy produced in the TMP area BENCHMARKING ENERGY USE IN CANADIAN PULP AND PAPER MILLS INTERPRETATION OF THE RESULTS INTERPRETATION OF THE RESULTS...

Ngày tải lên: 09/03/2014, 00:20

... study and the pulp and paper industry the positioning school and the configuration school are the most relevant – they deal with factors determining intensity of competition and the value chain, ... Finns The scope of the study is therefore the following: (1) Pulp, paper and packaging boards (2) North America, Europe, Asia and South America – from the viewpoint of the European pulp and paper ... Analysis of the profitability of the biggest pulp and paper companies of the world and the main participants of the paper value chain of selected pulp and paper firms This is intended for answering research...

Ngày tải lên: 18/03/2014, 02:20

... digesters in the pulping area of the mill Pulp Drying/Papermaking After pulping and bleaching, the pulp is processed into the stock used for papermaking At non-integrated mills, market pulp is ... paper or paperboard products (EPA 2010b) Some integrated pulp and paper mills perform multiple operations (e.g., chemical pulping, bleaching, and papermaking; pulping and unbleached papermaking; ... stock in pulping and papermaking operations) The pulp slurry is put through a paper machine and then passed through a press section, where the whitewater is drained and the sheet forming process...

Ngày tải lên: 18/03/2014, 02:20

... Sawmill Residue Pulping Chemicals Recovery Debarking Chipping Pulping Washing Waste Treatment Screening Chemicals Bleaching Cleaning Paper Machine or Pulp Dryer Pulp and Paper Mill Eco-industrial ... during chlorine bleaching Chlorination of dibenzodioxin (DBD) and dibenzofuran (DBF) DBD and DBF were found in de-foaming agents used in unbleached pulp preparation at that time 22 Dioxins and ... and screen rejects - no waste 12 Bleaching in the Pulp & Paper Industry What is Bleaching? Turns brown pulp Unbleached wood fibers Raw material for brown paper bags, cardboard Into bleached pulp...

Ngày tải lên: 18/03/2014, 02:20

... Chemical Pulp Bleaching Papermaking Paper Refining & Screening Newspaper Forming, Pressing, Finishing Linerboard Forming, Pressing, Finishing Tissue Forming, Pressing, Finishing Drying Chemical ... Newsprint Forming, Pressing, Finishing Newsprint Drying Tissue Forming, Pressing, Finishing Tissue Paper Drying Uncoated Paper Forming, Pressing, Finishing Uncoated Paper Drying Coated Paper Forming, ... Energy and Environmental Profile of the U.S Pulp and Paper Industry 14 Pulp and Paper Mills 2.1 Overview of the Pulp and Paper Mill Pulp and Paper Mills are Complex and Capital-Intensive The pulp and...

Ngày tải lên: 18/03/2014, 02:20

... the major industrial processes within the pulp and paper industry, including the materials and equipment used, and the processes employed The section is designed for those interested in gaining ... pulp and paper industry Processes in the manufacture of paper and paperboard can, in general terms, be split into three steps: pulp making, pulp processing, and paper/ paperboard production Paperboard ... and the papermaking stage of the pulp and paper process is de-emphasized The specific industry components covered in this industry are the following: SIC 2611 Pulp mills Pulp mills separate the...

Ngày tải lên: 18/03/2014, 02:20

... for process and machinery suppliers in the global pulp and paper industry At the same time, Metso has set a goal of growing in the biomass sector These are two of the key reasons behind the investment ... producing uncoated and coated fine papers Ozone bleaching, the most advanced technology, has been installed in the fiber lines at the pulp mill The fine paper line is in the final adjustment period ... Mills at Dandeli in the Karnataka State in India has recently expanded its pulp and paper capacity For the pulp production, they have installed the largest single pulp line in India, a SuperBatch...

Ngày tải lên: 24/03/2014, 05:20