Design, fabrication and preliminary testing of an annular fluidized bed reactor

Date

6-2015

Degree

Bachelor of Science in Chemical Engineering

Major Course

Major in Sugar Technology

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Marilyn C. Del Barrio

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 fabricated fluidized bed reactor used two concentric plexiglass tubes, with diameters 5.08cm (2in) and 10.16cm (4in) and a total length of about 140cm, the reactor was designed to process about 7 liters of water in a semi-batch, recirculating operation. Commercially available dehydrated tapioca balls, with diameters 0.2cm and 0.7cm, were used as the solid phase and tested for fluidization. Comparing the results with theoretical values: for the 0.2cm particles, minimum fluidization and terminal velocities occurred at 3.33cm/s (74.80% difference) and 16.97 cm/s(22.97% difference), respectively. For 0.7cm particles, the minimum fluidization was observed at 7.9cm/s(62.15% difference) and terminal velocity was not reached (theoretically occurs at 62cm/s) due to system limitations. It was also determined that trends on particle size to liquid velocity, bed height to superficial velocity and bed porosity to superficial velocity relationships follow the expected trends for the specified system. Based on actual data, the system can sustain the required theoretical operating conditions in terms of the operating velocity ranges for 0.2cm/s and 0.7cm/s, which are 2.52-4.47cm/s and 8.96-14.95cm/s, respectively.

Language

English

Location

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

Call Number

LG 993.5 2015 E62 /E58

Document Type

Thesis

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