Synthesis and characterization of hydrochars produced by hydrothermal carbonization of oil palm shell

2015 ◽  
Vol 93 (11) ◽  
pp. 1916-1921 ◽  
Author(s):  
Sabzoi Nizamuddin ◽  
Natesan Subramanian Jaya Kumar ◽  
Jaya Narayan Sahu ◽  
Poobalan Ganesan ◽  
Nabisab Mujawar Mubarak ◽  
...  
2018 ◽  
Author(s):  
Wahyuningsih ◽  
Zainal Abidin ◽  
Mohamad Endy Yulianto ◽  
Indah Hartati ◽  
Eflita Yohana

2015 ◽  
Vol 32 (9) ◽  
pp. 1789-1797 ◽  
Author(s):  
Sabzoi Nizamuddin ◽  
Natesan Subramanian Jayakumar ◽  
Jaya Narayan Sahu ◽  
Poobalan Ganesan ◽  
Abdul Waheed Bhutto ◽  
...  

2015 ◽  
Vol 31 (2) ◽  
pp. 753-762 ◽  
Author(s):  
Hector Ruiz ◽  
Monica Zambtrano ◽  
Liliana Giraldo ◽  
Rocio Sierra ◽  
Juan Moreno-Pirajan

2015 ◽  
Vol 7 (7) ◽  
pp. 611-615 ◽  
Author(s):  
Swe Jyan Teh ◽  
Sharifah Bee Abdul Hamid ◽  
Chin Wei Lai ◽  
You Sing Lim

2020 ◽  
Vol 14 (2) ◽  
pp. 160
Author(s):  
Aziz Askaputra ◽  
Ahmad Tawfiequrahman Yuliansyah

Oil palm shell is one of biomass-wastes which is abundantly found in palm oil industries. Its economical value can be enhanced by converting it into hydrochar using a hydrothermal carbonization process (HTC). In this study, preparation of oil palm shell hydrochar was performed and the material was used as adsorbent to remove methylene blue from waste water. Effects of HTC temperature, KOH activator concentration, and adsorption time were studied. Functional groups of hydrochar were evaluated by Fourier transform infrared (FTIR) spectroscopy. Meanwhile, the uptake capacity of hydrochar to adsorp methylene blue was measured by using UV-Vis spectrophotometer. The results showed that dehydration and decarboxylation reactions took place more progressively at the higher temperature of HTC. It was also found that activation process resulted higher removal efficiency of methylene blue. The highest adsorption capacity (16.58 mg/g, with removal efficiency 99.51%) was obtained by hydrochar prepared by HTC 270°C, KOH 1.5 N, and carried out for 80 minutes.Keywords: activator; adsorption; hydrothermal carbonization; methylene blue; oil palm shellA B S T R A KTempurung kelapa sawit merupakan salah satu limbah biomassa yang jumlahnya cukup melimpah di industri minyak kelapa sawit. Nilai ekonomi tempurung kelapa sawit dapat ditingkatkan, salah satunya melalui hydrothermal carbonization process (HTC). Dalam penelitian ini, hydrochar dari tempurung kelapa sawit dibuat dan digunakan sebagai adsorben untuk menjerap metilen biru dari limbah cair. Dalam hal ini, akan dipelajari pengaruh suhu HTC, konsentrasi aktivator KOH, dan durasi adsorpsi. Gugus fungsional hydrochar dianalisis dengan FT-IR spectroscopy, sementara itu kapasitas adsorpsi terhadap metilen biru diukur dengan spektrofotometer UV-Vis. Hasil percobaan menunjukkan bahwa reaksi dehidrasi dan dekarboksilasi pada kondisi hidrotermal terjadi lebih cepat pada suhu HTC yang lebih tinggi. Selain itu, proses aktivasi dengan KOH terbukti dapat meningkatkan efisiensi penyisihan metilen biru. Kapasitas adsorpsi maksimum sebesar 16,58 mg/g (dengan efisiensi penyisihan 99,51%) dihasilkan dari adsorpsi dengan menggunakan hydrochar yang diperoleh dari HTC suhu 270 °C, diaktivasi dengan KOH 1,5 N dan durasi adsorpsi selama 80 menit.Kata kunci: adsorpsi; aktivator; karbonisasi hidrotermal; metilen biru; tempurung kelapa sawit 


2013 ◽  
Vol 391 ◽  
pp. 51-55 ◽  
Author(s):  
Poedji Loekitowati Hariani ◽  
Muhammad Faizal ◽  
Ridwan ◽  
Marsi ◽  
Dedi Setiabudidaya

Characterization of activated carbon from oil palm shell prepared by H3PO4and application for the removal of procion red dye was investigated. Oil palm shell was carbonized at 500°C and prepared by H3PO45 % with ratio of 1:3. Characterized activated carbon by Fourier Transform Infra Red Spectroscopy (FTIR), Brunauer Emmet Teller (BET) surface area, Scanning Electron Microscope-Energy Dispersive X Ray Spectrometry (SEM-EDS). The result indicated that functional groups on the activated carbon surface were influenced by acidic treatment. The activated carbon have surface area 385.991 m2g-1and volume of micro porous 0.201 cm3g-1. The SEM-EDS image showed that activated carbon have many porous structure and the strong peak of C was 92.7 %. Adsorption capacity of activated carbon prepared by H3PO45 % was 278.197 mg g-1which is higher than not chemical activation was 216.456 mg g-1at equilibrium time 5 h.


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