Hydrogen conversion using gasification of tea factory wastes

Creative Commons License

Akyuz A., AKYÜREK Z., Naz M. Y., Sulaiman S. A., GÜNGÖR A.

JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, cilt.85, sa.7, ss.967-977, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 85 Sayı: 7
  • Basım Tarihi: 2020
  • Doi Numarası: 10.2298/jsc190215013a
  • Dergi Adı: JOURNAL OF THE SERBIAN CHEMICAL SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Central & Eastern European Academic Source (CEEAS), Chemical Abstracts Core, Communication Abstracts, Food Science & Technology Abstracts, Metadex, Directory of Open Access Journals, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.967-977
  • Anahtar Kelimeler: biomass, environment, conversion, syngas, thermodynamic, equilibrium, GAS SHIFT REACTION, BIOMASS GASIFICATION, FIXED-BED, STEAM, GENERATION, PARAMETERS, GASIFIER, CATALYST, YIELD, MODEL
  • Akdeniz Üniversitesi Adresli: Evet

Özet

In this study, gasification performance and importance of hydrogen production using waste of a tea factory were evaluated. A mathematical model was developed for the gasification system, which includes a water gas shift reactor used for hydrogen purification. The gasifier temperature was 877 degrees C for the developed model. The model has been validated against experimental data from an 80 kW th cylindrical downdraft gasifier, given in the literature for syngas composition for three different air-to-fuel ratios. With the developed model, hydrogen production from tea wastes was achieved to yield a higher level by additionally using a water gas shift reactor. Tea waste (1000 kg) was gasified and after the hydrogen purification process, a total of 4.1 kmol hydrogen was achieved, whereas the amount would be 2.8 kmol gas hydrogen if a normal gasification method were used. The validity of the developed model was verified by comparing the experimental results obtained from the literature with the results of the model under the same conditions. After verification of the developed model, the effect of the moisture content of the biomass and the air/fuel ratio on the composition of the product gas were investigated. These investigations were also confirmed by experimental data. The results show that it is important to convert biomass waste into a clean energy source of hydrogen to minimize its environmental impact.