8.International Conference on Oleo and Petrochemical Engineering 2015https://repository.unri.ac.id/handle/123456789/82232024-03-28T10:54:32Z2024-03-28T10:54:32ZA. Daftar isi International Conference on Oleo and Petrochemical Engineeringhttps://repository.unri.ac.id/handle/123456789/82522016-04-22T19:14:29Z2016-04-22T00:00:00ZA. Daftar isi International Conference on Oleo and Petrochemical Engineering
This present work focused on the characterization of treated oil palm frond (OPF)
from ozonolysis pretreatment. The ozonolysis pretreatment was performed in a
conventional semi-batch reactor at ambient condition. The effectiveness of
ozonolysis pretreatment was validated by investigating the degradation of lignin
and composition of solid product from pretreatment (treated OPF). In addition,
crystallinity, surface area, pore structure, and morphology of untreated and
treated OPF, as well as functional groups present were examined accordingly to
study the effect of ozonolysis pretreatment on physical properties of OPF. The
ozonolysis pretreatment on OPF was found to degrade the lignin structure, and
exerted only a slight effect on the hemicellulose structure. Meanwhile, the
cellulose yield was increased. As comparison to the untreated OPF, the
crystallinity index OPF was increased while the surface area, pore volume, and
mean pore diameter for the treated was decreased. This observation explained
that the ozonolysis reaction has degraded the C=C bond of acid insoluble lignin
into acid soluble lignin. Thus, the lignin could be removed easily by washing with
water. Removing the amorphous component would lead to higher crystallinity
index. Meanwhile, the pore properties of treated OPF would collapse during
washing and drying process. Results of the present study indicated ozonolysis
pretreatment as an effective method for OPF pretreatment to produce a washed
clean substrate rich in cellulose and xylan. In addition, the physical properties of
OPF were improved and ready for subsequent downstream bioconversion
process such as acid hydrolysis for glucose productio
2016-04-22T00:00:00ZEsterification Of Renewable Levulinic Acid To Ethyl Levulinate Over Modified HY Zeolite CatalystRamli, Nur Aainaa SyahirahAmin, Nor Aishah Saidinahttps://repository.unri.ac.id/handle/123456789/82512016-04-22T19:15:30Z2016-04-22T00:00:00ZEsterification Of Renewable Levulinic Acid To Ethyl Levulinate Over Modified HY Zeolite Catalyst
Ramli, Nur Aainaa Syahirah; Amin, Nor Aishah Saidina
The depleting primary energy sources and increasing greenhouse gas emissions have driven initiatives to develop clean technologies for chemical transformations from renewable feedstocks. Currently, extensive studies are being carried out to investigate the conversion of renewable biomass into biofuels and other chemical feedstocks. In particular, levulinic acid (LA) derived from biomass has been recognized as a versatile building block for the production of various platform chemicals. Esterification of LA with alcohols produce levulinate esters which have extensive application either in the flavoring and fragrance industries or fuel additives. Till date, the catalyst employed in the reported literatures for LA esterification suffered from either poor catalytic activity or lack of reusability properties. Herein, the esterification of LA with ethanol for ethyl levulinate (EL) production was conducted using iron modified HY zeolite (Fe/HY) at reflux condition. The effect of reaction time (1 – 7 h) , Fe/HY loading (10 – 35% Fe/HY to LA), and molar ratio of LA to ethanol (1:4 – 1:24), on LA conversion and EL yield were investigated. The experimental results revealed the optimum LA conversion and EL yield were obtained from LA esterification conducted at reflux condition for 6 h, 10% Fe/HY loading, and 1:16 of LA to ethanol molar ratio. The reusability of Fe/HY for EL production was also examined. In addition, Fe/HY catalyst was employed in the esterification of LA with methanol and butanol for methyl levulinate (ML) and butyl levulinate (BL) productions, respectively, with good performance. This study demonstrated the potential of Fe/HY catalyst for esterification of LA to levulinate esters at mild process conditions
2016-04-22T00:00:00ZA Characteristic of CO and CO2 gases production during a combustion process of In Situ Combustion (ISC) Method on Upgrading of Crude OilBahri, SyaifulMuhdarinaR Hugheshttps://repository.unri.ac.id/handle/123456789/82502016-04-22T19:13:59Z2016-04-22T00:00:00ZA Characteristic of CO and CO2 gases production during a combustion process of In Situ Combustion (ISC) Method on Upgrading of Crude Oil
Bahri, Syaiful; Muhdarina; R Hughes
This work is aimed to study a characteristic of gas production during thermal and
catalytic processing on combustion of heavy oil. Oil/sand sample was subjected
to a linear heating program 5oC/min from room temperature to a set point
temperature 400oC under continuous flowing of air 250 ml/min on a low pressure
3 bar. Combustion gases produced were allowed to flow to a condenser and
further were flowed through a drierite bed prior to measure by a GC continuously.
Combustion gases produced and oxygen consumption profiles were confirmed
that the combustion process has been successfully conducted during
experiments. A lighter oil of 23.3oAPI was produced from the catalytic run
compared with oil of 19.3oAPI resulted from the non-catalytic run.
2016-04-22T00:00:00ZPublic Policy Of Hydrocarbon Productivity Optimization For Oleo- And Petrochemical Industry: System Dynamics Approach (Case Study : Hydrocarbon Consumption In Riau Province, Indonesia)Nasution, Feldiansyah Bin BakriBazin, Nor Erne NaziraPutranto, PrayudhiAffandy, Yusmarhttps://repository.unri.ac.id/handle/123456789/82492016-04-22T19:12:58Z2016-04-22T00:00:00ZPublic Policy Of Hydrocarbon Productivity Optimization For Oleo- And Petrochemical Industry: System Dynamics Approach (Case Study : Hydrocarbon Consumption In Riau Province, Indonesia)
Nasution, Feldiansyah Bin Bakri; Bazin, Nor Erne Nazira; Putranto, Prayudhi; Affandy, Yusmar
Nowadays, Riau Province located in Indonesia which is producing approximately
fifty percent of Indonesia crude oil production and ten million metric tonnes (MT)
of Crude Palm Oil (CPO) from two million hectares of palm oil plantation, has
become a potential province to develop a centre of oleo- and petrochemical
industry in Sumatra Island. Eventhough it is not a significant natural gas
producer, the neighboring provinces such as Jambi and South Sumatra are
supplying large amount of natural gas. It is such a challenging moment for Riau
local government to have strategic policy of oil and natural gas productivity into
petrochemical industry to manufacture its derivative products. It is also happening
to CPO in oleochemical industry. If all of these hydrocarbons used as raw
materials are high because of the expansion of oleo- and petrochemical industry,
the usage of oil and natural gas, as the fossil energy should be substituted by
renewable energy, such as wind, water, sunlight, geothermal power. Until now,
government and private sectors seem less to care to optimize this productivity.
System dynamics is used to simulate the behavior of this hydrocarbons
consumption as the energy and product supply to the oleo- and petrochemical
industries. Public policy as the intervention is introduced to become the feedback
to the government and private sectors to take the growth of oleo- and
petrochemical business.
2016-04-22T00:00:00Z