Sökning: onr:"swepub:oai:DiVA.org:ri-37837" > Consequences in a s...
Fältnamn | Indikatorer | Metadata |
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000 | 03521naa a2200469 4500 | |
001 | oai:DiVA.org:ri-37837 | |
003 | SwePub | |
008 | 190228s2019 | |||||||||||000 ||eng| | |
009 | oai:DiVA.org:ri-50065 | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-378372 URI |
024 | 7 | a https://doi.org/10.1515/npprj-2018-00262 DOI |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-500652 URI |
040 | a (SwePub)ri | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Brännvall, Elisabetu RISE,Bioraffinaderi och energi,Massa, papper och förpackningar4 aut0 (Swepub:ri)elisabet.brannvall@ri.se |
245 | 1 0 | a Consequences in a softwood kraft pulp mill of initial high alkali concentration in the impregnation stage |
264 | c 2019-02-13 | |
264 | 1 | b Walter de Gruyter GmbH,c 2019 |
338 | a electronic2 rdacarrier | |
520 | a Impregnation with high initial concentration is fast and efficient, leading to a homogeneous delignification in the subsequent cook, resulting in improved screened pulp yield. To obtain high initial alkali concentration, the white liquor flow needs to be significantly increased. The moisture content of the wood chips and the alkali concentration of the white liquor limit the initial alkali concentration of the impregnation liquor that can be reached. It is therefore of interest to evaluate the possibility to implement high alkali impregnation (HAI) industrially and the consequences this would have on the mill system. The effect of HAI on mass and energy balances in a kraft pulp mill has been studied using mill model simulations. The sensitivity to disturbances in important parameters for process control has been compared to impregnation scenarios used industrially. It was shown that high initial alkali concentration can be achieved on industrial scale by increased white liquor flow. HAI has a positive effect on recovery flows and reduces the need for make-up chemicals. The HAI concept is less sensitive to variations in process parameters, such as chip moisture and white liquor concentration, thus diminishing the risk of alkali depletion in chip cores. © 2019 Brännvall and Kulander. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Materialteknikx Pappers-, massa- och fiberteknik0 (SwePub)205032 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Materials Engineeringx Paper, Pulp and Fiber Technology0 (SwePub)205032 hsv//eng |
653 | a Delignification | |
653 | a Impregnation | |
653 | a Softwood | |
653 | a effective alkali | |
653 | a kraft cooking | |
653 | a simulation model; pulp mill | |
653 | a yield | |
700 | 1 | a Kulander, Idau RISE,Bioraffinaderi och energi4 aut |
710 | 2 | a RISEb Bioraffinaderi och energi4 org |
773 | 0 | t Nordic Pulp & Paper Research Journald : Walter de Gruyter GmbHg 34:1, s. 28-35q 34:1<28-35x 0283-2631x 2000-0669 |
856 | 4 | u https://doi.org/10.1515/npprj-2018-0026y Fulltext |
856 | 4 | u https://www.degruyter.com/view/j/npprj.ahead-of-print/npprj-2018-0026/npprj-2018-0026.xml |
856 | 4 | u https://ri.diva-portal.org/smash/get/diva2:1292556/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print |
856 | 4 | u https://www.degruyter.com/downloadpdf/journals/npprj/34/1/article-p28.pdf |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-37837 |
856 | 4 8 | u https://doi.org/10.1515/npprj-2018-0026 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-50065 |
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