Enhanced bioaromatics synthesis via catalytic co-pyrolysis of cellulose and spent coffee ground over microporous HZSM-5 and HY

Lee HW 1 , Farooq A 1 , Jang SH 2 , Kwon EE 3 , Jae J 4 , Lam SS 5 Show all authors , Jung SC 6 , Park YK 7

Affiliations 

  • 1 School of Environmental Engineering, University of Seoul, Seoul, 02504, South Korea
  • 2 Department of BioEnvironmental Energy, Pusan National University, Miryang, 50463, South Korea
  • 3 Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
  • 4 School of Chemical and Biomolecular Engineering, Pusan National University, Busan, 46241, South Korea
  • 5 Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP) & Institute of Tropical Biodiversity and Sustainable Development (Bio-D Tropika), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
  • 6 Department of Environmental Engineering, Sunchon National University, Suncheon, 57922, South Korea
  • 7 School of Environmental Engineering, University of Seoul, Seoul, 02504, South Korea. Electronic address: catalica@uos.ac.kr
Environ Res, 2020 May;184:109311.
PMID: 32145550 DOI: 10.1016/j.envres.2020.109311

Abstract

Catalytic co-pyrolysis (CCP) of spent coffee ground (SCG) and cellulose over HZSM-5 and HY was characterized thermogravimetrically, and a catalytic pyrolysis of two samples was conducted using a tandem micro reactor that directly connected with gas chromatography-mass spectrometry. To access the more fundamental investigations on CCP, the effects of the zeolite pore structure, reaction temperature, in-situ/ex-situ reaction mode, catalyst to feedstock ratio, and the SCG and cellulose mixing ratio were experimentally evaluated. The temperature showing the highest thermal degradation rate of cellulose with SCG slightly delayed due to the interactions during the thermolysis of two samples. HZSM-5 in reference to HY produced more aromatic hydrocarbons from CCP. With respect to the reaction temperature, the formation of aromatic hydrocarbons increased with the pyrolytic temperature. Moreover, the in-situ/ex-situ reaction mode, catalyst/feedstock, and cellulose/SCG ratio were optimized to improve the aromatic hydrocarbon yield.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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