Pretreatment of kawayan tinik (Bambusa blumeana J.A. & J.H. Schultes) using steam explosion for pulp and paper production

Date

7-2015

Degree

Bachelor of Science in Chemical Engineering

Major Course

Major in Pulp and Paper Technology

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Ramon A. Razal

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

The main objective of the study is to evaluate the effect of steam explosion pretreatment of the properties of pulp and handsheets made from kawayan tinik ( Bambusa blumeana J. A. & J. H. Schultes). KAwayan tinik was tretreated at steam temperatures of 180ºC , and 220ºC and retention time of 480 s to correspond to severity factors 3.3, 3.9, and 4.4. The control condition was made with kawayan tinik matchsticks that underwent pulping without being subjected to steam explosion pretreatment. Sulfate pulping was done at 25% sulfidity, 16% active alkali, with liquid to kawayan tinik ratio of 12:1. This was followed by two-stage bleaching process at mass fraction of 0.5% calcium hypochlorite for the first stage and volume fraction of 5% hydrogen peroxide for the second stage. Fiber analysis was done and kappa number of pulp was determined. Physical properties, such as burst index, tensile index, folding endurance, tearing index, brightness of ten handsheets for each condition were tested. The results showed that steam explosion preatment was able to improve the properties of handsheets up to a severity factor of 3.9. A decrease in the value of properties of the handsheets was observed at severity factor of 4.4. The best value for properties of pulp and handsheets was observed at severity factor 3.9. Statistical significance of the results was determined using ANOVA.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2015 E62 /O55

Document Type

Thesis

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