tshuaj ntoo pulping koom nrog kev rho tawm ntawm cellulose los ntawm ntoo los ntawm dissolving lignin uas khi cov cellulose fibers ua ke. Cov txheej txheem 4 feem ntau siv hauv tshuaj pulping yog kraft, sulfite, nruab nrab sulfite semichemical (NSSC), thiab dej qab zib.
txhais tau li cas los ntawm chemical pulp?
Tshuaj pulping yog hais txog cov txheej txheem sib txawv los ntawm cov ntoo lossis lwm cov khoom noj fiber ntau tau hloov mus rau hauv cov khoom lag luam nrog cov fibers liberated los ntawm kev yaj cov lignin uas khi cov cellulose fibers ua ke. Los ntawm: Muaj Biorefineries & Dawb Biotechnology, 2015.
Dab tsi yog qhov sib txawv ntawm cov txheej txheem tshuab thiab tshuaj lom neeg pulping?
Mechanical pulping siv feem ntau txhua yam zog los cais cov fibers thiab tsim cov khoom siv pulp. Cov tshuaj pulping siv cov tshuaj siv zog feem ntau, (los ntawm cov tshuaj tiv thaiv), cais cov fibers thiab tsim cov khoom siv pulp.
Dab tsi yog tshuaj lom neeg pulping?
Txoj kev hloov cov ntoo chips rau daim ntawv pulp rau papermaking siv kev sib xyaw ntawm cov tshuaj thiab cov tshuab txhais tau tias. Pulp yields hauv cov txheej txheem semichemical feem ntau yog los ntawm 60: 80% ntawm cov ntoo qub, thiab feem ntau ntawm cov seem lignin tseem nyob. …
Cov txheej txheem tshuaj ntawm ntawv yog dab tsi?
Cov neeg ua ntawv yuav tsum tshem cov lignin ntawm cov ntoo. Yuav kom ua tiav qhov no, ib qho ntawm cov tshuaj tiv thaiv tseem ceeb siv hauv kev lag luam yog Kraft txheej txheem, hauvuas cov ntoo chips tau ua ke nrog kev sib xyaw ntawm sodium hydroxide thiab sodium sulfide hauv dej ntawm qhov kub thiab txias.
