scholarly journals Pemurnian Gliserin Dengan Menggunakan Metode Adsorpsi Karbon Aktif Lokal

2020 ◽  
Vol 1 (2) ◽  
pp. 1-6
Author(s):  
Akhmad Rifa'i ◽  
Hanif Yuliani ◽  
Fithri Nur Purnamastuti ◽  
Eryanti Kalembang ◽  
Rina Dewi Mayasari ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Polar Solvent ◽  
Crude Glycerin

Pemurnian gliserin dilakukan dengan tiga tahapanreaksi yaitu: acidification,polar solven extraction, dan activated carbon adsoption. Proses pemurnian juga mengoptimasi pengaruh jenis asam (H3PO4, H2SO4dan CH3COOH) pada pH (1–6), jenis pelarut / polar solvent(CH3OH, C2H5OH dan C3H7OH) dengan rasio pelarut organik terhadap gliserin (3:1–1:3 v/v), serta proses adsorpsi karbon aktif dengan perbandingan konsentrasi karbon aktif terhadap gliserin (40–200 g/l).Pemurnian crude glycerin(±82% PT. Wilmar Nabati) telah dilakukan dengan proses adsorpsi karbon aktif lokal.Proses adsorpsi bertujuan untuk menghilangkan senyawa MONG (matter organic non glycerin) dan betha-carotenesebagai komponen warna.Setelah proses adsorpsi diperoleh gliserin dengan kemurnian ±96% (b/v). Untuk mendapatkan kemurnian mencapai 99,8% diperlukan proses distilasi untuk memisahkan impuritas air.

scholarly journals Purification and characterization of glycerin obtained from soybean biodiesel production

2019 ◽  
Vol 10 (3) ◽  
pp. 252-262
Author(s):  
Roberto Guimarães Pereira ◽  
Fernanda Arenásio Benites Alves de Souza
Keyword(s):  
Activated Carbon ◽  
Ion Exchange ◽  
Exchange Process ◽  
Biodiesel Production ◽  
Biofuel Production ◽  
Crude Glycerin ◽  
Purification Process ◽  
Ion Exchange Process ◽  
Wide Range ◽  
Soybean Biodiesel

The crude glycerin is a raw material which can be applied in a wide range of products, even with all its impurities, without the need for purification. However, the purification processes allow a wider application, making it more salable. With increasing demand for biodiesel, a glycerin excess is being released to the market. Therefore, the search for alternative treatments for the glycerin derived from the biodiesel production process is of utmost importance, ensuring biofuel production flow. This paper presents glycerin purification experiments done in a crude glycerin (64.44% of glycerol) obtained from the soybean biodiesel production, which was subjected to pre-purification process, purification with activated carbon and by ion exchange process. After the purification process the glycerin sample was characterized and compared with commercially used glycerin. The highest content of glycerol achieved was 94.22% corresponding to the steps of: pre-purification process (washing, acidification, separation, neutralization, salting-outing and evaporation); purification with activated carbon and by ion exchange process with mixed resin.   

Designed construction of yolk–shell structured trimanganese tetraoxide nanospheres via polar solvent-assisted etching and biomass-derived activated porous carbon materials for high-performance asymmetric supercapacitors

2017 ◽  
Vol 5 (30) ◽  
pp. 15808-15821 ◽  
Author(s):  
Goli Nagaraju ◽  
S. Chandra Sekhar ◽  
G. Seeta Rama Raju ◽  
L. Krishna Bharat ◽  
Jae Su Yu
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Polar Solvent ◽  
High Energy ◽  
Asymmetric Supercapacitors ◽  
Porous Carbon Materials ◽  
High Energy Storage

Yolk–shell structured Mn3O4 nanospheres and biomass-derived activated carbon materials were prepared for use in high energy storage asymmetric supercapacitors.

Thermal stability and decomposition of perfluoroalkyl substances on spent granular activated carbon

2020 ◽  
Author(s):  
Feng Xiao ◽  
Bin Yao ◽  
Pavankumar Challa Sasi ◽  
Svetlana Golovko ◽  
Dana Soli ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Activated Carbon ◽  
Granular Activated Carbon ◽  
Perfluoroalkyl Substances

Modification of activated carbon fiber pore structure by coke deposition

2001 ◽  
Vol 11 (PR3) ◽  
pp. Pr3-279-Pr3-286
Author(s):  
X. Dabou ◽  
P. Samaras ◽  
G. P. Sakellaropoulos
Keyword(s):  
Activated Carbon ◽  
Carbon Fiber ◽  
Pore Structure ◽  
Activated Carbon Fiber ◽  
Coke Deposition

Enhancing the power generation of Rhodopseudomonas palustris-based MFC

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1261-1268
Author(s):  
Shu Otani ◽  
Dang-Trang Nguyen ◽  
Kozo Taguchi
Keyword(s):  
Activated Carbon ◽  
Rhodopseudomonas Palustris ◽  
Ozone Treatment ◽  
Maximum Power Density ◽  
On Demand ◽  
Long Time ◽  
Dry Conditions ◽  
Carbon Sheet ◽  
Uv Ozone

In this study, a portable and disposable paper-based microbial fuel cell (MFC) was fabricated. The MFC was powered by Rhodopseudomonas palustris bacteria (R. palustris). An activated carbon sheet-based anode pre-loaded organic matter (starch) and R. palustris was used. By using starch in the anode, R. palustris-loaded on the anode could be preserved for a long time in dry conditions. The MFC could generate electricity on-demand activated by adding water to the anode. The activated carbon sheet anode was treated by UV-ozone treatment to remove impurities and to improve its hydrophilicity before being loaded with R. palustris. The developed MFC could generate the maximum power density of 0.9 μW/cm2 and could be preserved for long-term usage with little performance degradation (10% after four weeks).

Adsorption/desorption properties of activated carbon on toluene with operation condition and characteristics

2015 ◽  
Vol 14 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Seo-Hyun Pak ◽  
◽  
Myung-Seop Shin ◽  
Hyun-Jung Kim ◽  
Yong-Woo Jeon
Keyword(s):  
Activated Carbon ◽  
Operation Condition ◽  
Adsorption Desorption
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