Production of Low-carbon Light Olefins from Catalytic Cracking of Crude Bio-oil

Yuan, Yanni; Wang, Zhihui; Li, Quanxin

doi:10.1063/1674-0068/26/02/237-244

Cited by 7 publications

(4 citation statements)

References 33 publications

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“…The HZSM‐5(80) zeolite was made to order by Nankai University catalyst Co., Ltd. (Tianjin, China). The metal oxide‐modified HZSM‐5(80) catalysts, including La 2 O 3 /HZSM‐5(80), MgO/HZSM‐5(80), CeO 2 /HZSM‐5(80) and ZnO/HZSM‐5(80), were prepared by the impregnation method . Briefly, the zeolite was impregnated in the corresponding metal nitrate solution for a night, followed by rotary‐evaporation at 80 °C for 6 h. Then, the dried sample was calcined at 550 °C for 5 h, and crushed to 40–60 mesh before use.…”

Section: Methodsmentioning

confidence: 99%

“…The metal oxide-modified HZSM-5(80) catalysts, including La 2 O 3 /HZSM-5(80), MgO/HZSM-5(80), CeO 2 /HZSM-5(80) and ZnO/HZSM-5(80), were prepared by the impregnation method. 31 Briefly, the zeolite was impregnated in the corresponding metal nitrate solution for a night, followed by rotary-evaporation at 80 ∘ C for 6 h. Then, the dried sample was calcined at 550 ∘ C for 5 h, and crushed to 40-60 mesh before use. For the characterization of the catalysts, X-ray diffraction (XRD) was performed on an X'pert Pro Philips diffractrometer (Philips, Amsterdam, Netherlands).…”

Section: Preparation and Characterization Of Catalystsmentioning

confidence: 99%

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Production of bio‐based p‐xylene via catalytic pyrolysis of biomass over metal oxide‐modified HZSM‐5 zeolites

Chang

Zhu

Jin

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND p‐Xylene is an important bulk chemical in the petrochemical industry, and the production of bio‐based p‐xylene is of great significance in both academic and industrial arenas. However, the biggest challenge for the production of p‐xylene from biomass is how to increase the yield and selectivity of p‐xylene. RESULTS The highest p‐xylene yield of 20.7 C‐mol% with a p‐xylene/xylenes ratio of 91.6% was obtained by the co‐catalytic pyrolysis of sawdust with 50 wt% methanol over the 20%La2O3/HZSM‐5(80) catalyst. Adding a La, Mg, Ce or Zn element into HZSM‐5 promoted the alkylation of benzene and toluene to form xylenes, and the isomerization of m/o‐xylenes to p‐xylene. CONCLUSION This work developed a one‐pot process in which lignocellulosic biomass (sawdust) was directionally converted into p‐xylene by coupling the catalytic pyrolysis of biomass into aromatic monomers, the alkylation of light aromatics to xylenes and the isomerization of m/o‐xylenes to p‐xylene over the metal oxide‐modified HZSM‐5 catalysts. The selectivity and yield of p‐xylene strongly depended on the acidity of the catalysts, reaction temperature and methanol additive during the catalytic pyrolysis of sawdust. © 2018 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Section: Preparation and Characterization Of Catalystsmentioning

confidence: 99%

Production of bio‐based p‐xylene via catalytic pyrolysis of biomass over metal oxide‐modified HZSM‐5 zeolites

Chang

Zhu

Jin

et al. 2018

J of Chemical Tech & Biotech

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“…Light olefins (i.e. acetylene, ethylene, propylene and butylene) are important building blocks for the production of chemicals, plastics, synthetic fuels and fibres [1] [2]. Light olefins are produced through a well-established industrial process, the steam reforming of crude-oil derivatives.…”

Section: Introductionmentioning

confidence: 99%

The panorama of plasma-assisted non-oxidative methane reforming

Scapinello

Delikonstantis

Stefanidis

2017

Chemical Engineering and Processing: Process Intensification

142

151

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Methane is an important raw material for fuel and commodity chemicals production. Energyintensive steam methane catalytic reforming in gas-fired furnaces is the main industrial process for methane conversion to synthesis gas and further to other chemicals. Methane conversion by means of non-thermal plasma technologies has attracted attention in the last years, as no pre-heating of the feedstream at high temperatures is needed. Electric energy is consumed in producing energetic electrons for molecule bonds breaking, instead of gas heating, thereby overcoming the disadvantages of high operational temperatures. In this work, after introducing plasma classification and plasma chemistry, a comprehensive review of literature papers on non-thermal plasma-assisted methane coupling in the period 2010-2016 is presented and the best results that have been obtained with all different kinds of non-thermal plasma techniques are reported. Finally, as the energy cost is the main cost driver of the process after the raw material cost, comparison among all plasma techniques used for methane coupling is performed in terms of specific energy requirement to crack a mole of methane (SER, kJ/molCH4), efficiency (η %) and energy requirement to produce a mole of target product (ER, either kJ/molC2H2 or kJ/molC2H4). This is followed by a comparison between plasma-driven and thermal energy-driven methane coupling.

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“…Semakin tinggi suhu pirolisis maka dekomposisi semakin meningkat sehingga produk cairan dan gas semakin banyak, hal ini menyebabkan yield char semakin turun. Heating rate tinggi dan waktu tinggal yang lebih lama juga menyebabkan reaksi secondary cracking lebih aktif, maka yield char semakin turun [20,21,22]. Pada pirolisis tanpa katalis suhu 300 ℃ diperoleh yield char jauh lebih tinggi yakni 51,31% dibanding dengan katalis 39,92%.…”

Section: Yield Charunclassified

Pyrolysis of Spirulina platensis Residue: Effect of Temperature without and with Fe-oxide catalyst

Jamilatun

Kurniawan

Purnama

et al. 2021

CHEMICA: Jurnal Teknik Kimia

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Saat ini kebutuhan minyak bumi dan BBM dalam negeri dipenuhi dari produksi minyak bumi dalam negeri, impor minyak bumi dan impor BBM. Meskipun minyak bumi dengan spesifikasi kilang telah diproses di kilang minyak dalam negeri, namun tidak bertambahnya kapasitas kilang selama 20 tahun terakhir dan konsumsi BBM yang terus meningkat menyebabkan impor BBM semakin besar dari tahun ke tahun. Dalam kurun waktu dari 2017-2050 diperkirakan impor minyak bumi akan meningkat 5 kali lipat, meningkat dari 181,9 juta barel pada tahun 2017 menjadi 924,9 juta barel pada tahun 2050 dengan pertumbuhan 5,1% per tahun. Minyak bumi yang tidak dapat diproses di kilang akan diekspor dan jumlahnya terus menurun sampai tidak ada lagi ekspor pada tahun 2036. Bila ekspor ini dipertimbangkan maka net import minyak bumi dalam kurun waktu tersebut diperkirakan akan meningkat dari 79,2 juta barel pada tahun 2017 menjadi 924,9 juta barel pada tahun 2050 dengan tingkat pertumbuhan 7,7% per tahun [1].Menipisnya cadangan minyak bumi berbasis fosil dan peningkatan impor BBM mendesak untuk ditanggulangi dengan menyediakan bahan bakar terbarukan yang aman bagi lingkungan [2,3]. Salah

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Production of Low-carbon Light Olefins from Catalytic Cracking of Crude Bio-oil

Cited by 7 publications

References 33 publications

Production of bio‐based p‐xylene via catalytic pyrolysis of biomass over metal oxide‐modified HZSM‐5 zeolites

Production of bio‐based p‐xylene via catalytic pyrolysis of biomass over metal oxide‐modified HZSM‐5 zeolites

The panorama of plasma-assisted non-oxidative methane reforming

Pyrolysis of Spirulina platensis Residue: Effect of Temperature without and with Fe-oxide catalyst

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