scholarly journals Simulation of CO2 Gas Adsorption Process Flow at Cyclone Gas Outlet in Palm Oil Mills Using Computation Fluid Dynamic Simulation

2021 ◽  
Vol 1 (3) ◽  
pp. 104-109
Author(s):  
Novi Sylvia ◽  
Yunardi Yunardi ◽  
Husni Husni ◽  
Abrar Muslim
Keyword(s):  
Centrifugal Force ◽  
Palm Oil ◽  
Gas Flow ◽  
Adsorption Process ◽  
Gas Adsorption ◽  
Cyclone Separator ◽  
Co2 Gas ◽  
Adsorption Column ◽  
Bed Height ◽  
Student Version

Cyclone separator is equipment used to control emissions  from gas flow in industrial processes. The principle of removing particulates from the gas flow in this tool is to use the centrifugal force. The centrifugal force generated from the rotating flow will make dust       particles wasted into the cyclone wall where the dust will then fall into the hopper. Adsorption is a series of processes for the accumulation of a substance (adsorbate) on the surface of another substance (adsorbent). Adsorption can occur because of the energy on the surface and the attraction force on the surface. This study aims to obtain a good CO2 adsorption efficiency from modifying the cyclone separator using an adsorption column, analyzing the CO2 gas adsorption process produced from the biomass system at the utility unit boiler station at the Palm Oil Mill (PMO) using a modified cyclone. This simulation was carried out using the Autodesk Inventor Professional 2017 (Student Version) application for the descripction of the tool as a preprocessor and Ansys 2019 R3 (Student Version) applications as a processor and post processor. The variations that were applied included the adsorption column bed height of 3100 mm and 4650 mm, respectively, CO2 gas flow rates of 10, 12.5, 15, 17.5, 20, 22.5 dan 25 m/s and mass loading 0,001 kg/s. The results obtained in the most optimal modification of the cyclone separator are at a bed height of 3100 mm with the highest adsorption percentage 93.437%, the highest flow 91.974% with a pressure drop of 1000 Pa.

Probing the performance of imide linked micro-porous polymers for enhanced CO2 gas adsorption applications

2021 ◽  
Author(s):  
Narendran Rajendran ◽  
Ali A. Husain ◽  
Saad Makhseed
Keyword(s):  
Surface Area ◽  
Gas Adsorption ◽  
Oxidative Polymerization ◽  
Porous Polymers ◽  
Bet Surface Area ◽  
Co2 Gas

Three new carbazole containing cross-linked polymers namely AH-Poly, TM-PDA-Poly and TMB-PDA-Poly were designed and successfully synthesized by an oxidative polymerization protocol. The prepared AH-Poly showed a specific BET surface area...

scholarly journals ADSORPSI β-KAROTEN YANG TERKANDUNG DALAM MINYAK KELAPA SAWIT (CRUDE PALM OIL) MENGGUNAKAN KARBON AKTIF

2016 ◽  
Vol 5 (1) ◽  
pp. 52-57
Author(s):  
Irvan ◽  
Olyvia Putri Wardhani ◽  
Nurul Aini ◽  
Iriany
Keyword(s):  
Activated Carbon ◽  
Correlation Coefficient ◽  
Palm Oil ◽  
Adsorption Process ◽  
Final Concentration ◽  
Kinetics Model ◽  
Isotherm Models ◽  
Crude Palm Oil ◽  
Enthalpy Changes ◽  
Β Carotene

Crude palm oil (CPO) is the richest natural source of carotenoids which gives the reddish-orange color in crude palm oil. The reddish color in  unprocessed palm oil is disliked by consumer. This research is aimed to adsorb the β–carotene from the CPO using activated carbon, then the kinetics, isotherm models and thermodynamics data of the adsorption process were obtained. The main materials used in this research were CPO and activated carbon. The observed parameters were final concentration  and the amounts of adsorbed β–carotene in activated carbon. The adsorption process was conducted by mixing the adsorbent with CPO with the variation of adsorbent: CPO (w/w) ratio = 1 : 3; 1 : 4; 1 : 5 and 1 : 6 with mixing  speed 120 rpm and the temperature of 40, 50 and 60 oC. The sample of CPO and activated carbon was analyzed at every 2 minutes until the equilibrium was achieved. The final concentration of the unadsorbed β–carotene was analyzed using UV-Vis spectrophotometer. The results showed that the more CPO used in the process, the lower the adsorption percentage. The higher the adsorption temperature, the higher  adsorption percentage. Moreover, the maximum adsorption percentage was 95.108%  obtained at ratio 1 : 3 and T = 60 oC. The adsorption isotherm model which fit with the β–carotene adsorption at T = 60 oC was Langmuir model with the correlation coefficient of 0.959. The adsorption kinetics model which fit with the β–carotene adsorption was the second order kinetics model with the correlation coefficient of 0.998. The value of free energy Gibbs (ΔG) = -24,482.484 ; -24,708.059 and -24,933.634 J/mol for each temperature respectively, value of entropy changes (ΔS) = 22.557 J/mol K, and value of enthalpy changes (ΔH) = -17,421.987 J/mol.

scholarly journals METODE PERHITUNGAN MASSA GAS CO2 YANG DISERAP FOTOBIOREAKTOR DENGAN PERSAMAAN GAS IDEAL

2016 ◽  
Vol 11 (2) ◽  
pp. 239
Author(s):  
Arif Dwi Santoso
Keyword(s):  
Gas Flow ◽  
Co2 Concentration ◽  
Ideal Gas ◽  
Gas Absorption ◽  
Flow Diagram ◽  
Measuring Instruments ◽  
Continuous Systems ◽  
Co2 Gas ◽  
Method Of Calculation ◽  
The Ideal

BPPT conducted the mass of CO2 gas calculation in the gas absorption experiments with phytoplankton cultivation in the photobioreaktor (FBR) batch and continous syatem using the ideal gas equation. This study stated that the method of calculation with the ideal gas equation is more simple and practical in providing data analysis compared with biomass methods. Some things to note in this method include good knowledge about the movement of the gas flow diagram of inputs and outputs FBR, an appropriate gas sampling, and accuracy of measuring instruments. The required data in the mass calculation of CO2 gas in a batch photobioreactor system was resultant CO2 concentration during measurement. Meanwhile in a continuous systems, the requireddata was CO2 concentration at the reactor input and output , the rate and duration of the injection gas.Keywods : massa gas CO2, dry weight, ideal gas formula

scholarly journals TOTAL VOLUMETRIC MASS TRANSFER COEFFICIENT AT CO2 GAS ABSORPTION USING K2CO3 BY MSG PROMOTER

Konversi ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
Erlinda Ningsih ◽  
Abas Sato ◽  
Mochammad Alfan Nafiuddin ◽  
Wisnu Setyo Putranto
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Flow Rate ◽  
Liquid Flow ◽  
Total Mass ◽  
Gas Flow ◽  
Liquid Flow Rate ◽  
Gas Flow Rate ◽  
Co2 Gas

Abstract- One of the most widely used processes for CO2 gas removal is Absorption. Carbon dioxide is the result of the fuel combustion process which of the hazardous gases. The aim of this research is to determine the total mass transfer coefficient and analyze the effect of the absorbent flow rate of the absorbent solution with the promoter and the gas flow rate to the total mass transfer coefficient value. The variables consisted of liquid flow rate: 1, 2, 3, 4, 5 liter/min, gas flow rate: 15, 25, 30, 40, 50 liter/min and MSG concentration: 0%, 1%, 3% and 5% by weight. The solution of Pottasium Carbonate as absorbent with MSG promoter is flowed through top column and CO2 gas flowed from bottom packed column. Liquids were analyzed by titration and the gas output was analyzed by GC. From this research, it is found that the flow rate of gas and the liquid flow rate is directly proportional to the value of KGa. The liquid flow rate variable 5 liters / minute, gas flow rate 15 l / min obtained value of KGa 11,1102 at concentration of MSG 5%. Keywords:  Absorption, CO2,  K2CO3, MSG. 

scholarly journals Study on Chlorinated Gas Adsorption Using Activated Carbon via Polyvinyl Chloride (PVC) Stepwise Pyrolysis Process

Proceedings ◽  
2018 ◽  
Vol 2 (20) ◽  
pp. 1314
Author(s):  
Patiparn Boonruam ◽  
Piyachat Wattanachai ◽  
Settakorn Upasen
Keyword(s):  
Activated Carbon ◽  
Polyvinyl Chloride ◽  
Adsorption Process ◽  
Gas Adsorption ◽  
Chloride Ion ◽  
Pyrolysis Process ◽  
Acid Base ◽  
Surface Areas ◽  
Acid Base Titration ◽  
Specific Surface Areas

In this research, we studied the chlorinated gas adsorption process using activated carbon. Two types of granular activated carbon were employed: GAC800 and GAC1200; with specific surface areas of 800 m2/g and 1200 m2/g, respectively. In order to optimize the polyvinyl chloride (PVC) dehydrochlorination conditions, three parameters were studied: (i) the type of precursor—PVC and PVC mixed with charcoal (1:1 by weight)—(ii) the temperature—300 and 400 °C—and (iii) the retention time—30, 120, and 240 min. Mohr’s method and acid-base titration were used to estimate the captured amount of chlorinated gas. The results indicated that the PVC dehydrochlorination occurred completely about 69–73 wt.% at 400 °C for 240 min. The amount of chloride ion was detected around 1–2 mmol/LNaOH. The estimated HCl adsorption capacity for the GAC800 and GAC1200 samples potentially absorbed 0.27 mgHCl/gGAC and 0.21 mgHCl/gGAC, respectively. In addition, the efficiency for GAC800 and GAC1200 was reported to 37.95% and 28.92%, respectively.

Hydrogen Sulfide Separation from Biogas Using Laterite Soil Adsorbent

2020 ◽  
Vol 988 ◽  
pp. 144-150
Author(s):  
Sanggono Adisasmito ◽  
Carolus Borromeus Rasrendra ◽  
M. Qori Alfadhli ◽  
M. Fauzan Al Ghifary
Keyword(s):  
Particle Size ◽  
Adsorption Capacity ◽  
Room Temperature ◽  
Biogas Production ◽  
Separation Process ◽  
High Adsorption ◽  
Laterite Soil ◽  
Adsorption Column ◽  
Bed Height ◽  
High Adsorption Capacity

Biogas production contributes as an alternative renewable energy but its emissions contain sulphuric components which needs to be separated because it can cause damage to the environment. The method used in separation is adsorption with laterite soil because the price is cheap, easy to obtain, and can occur at room temperature. The purpose of this study is to determine the conditions of the adsorbent in the adsorption column which can provide a high adsorption capacity. The separation process is carried out by flowing biogas with a flow rate of 1.5 liters/minute to the adsorption column containing laterite soil. Reducing the particle size of the adsorbent from 6 mesh to 21 mesh will increase the adsorption capacity to 2.13 times, ie from 7.3 to 14.2 mg H2S/g adsorbent. The addition of bed height from 7 cm to 12 cm will increase the adsorption capacity from 6.7 to 7.9 mg H2­S/g adsorbent at 6 mesh particle size. The addition of bed height from 7 cm to 12 cm will increase the adsorption capacity from 13.5 to 15.0 mg H2S/g adsorbent at 21 mesh particle size. The laterite soil adsorbent with a particle size of 21 mesh has the highest adsorption capacity of 15.0 mg H2S/g adsorbent.

Fabrication of a functional microgel-based hybrid nanofluid and its application in CO2 gas adsorption

2019 ◽  
Vol 136 ◽  
pp. 131-137 ◽  
Author(s):  
Dongdong Yao ◽  
Ting Li ◽  
Yaping Zheng ◽  
Zhilin Zhang
Keyword(s):  
Gas Adsorption ◽  
Hybrid Nanofluid ◽  
Co2 Gas

Two new MOFs based on 5-((4-carboxypyridin-2-yl)oxy) isophthalic acid displaying unique selective CO2 gas adsorption and magnetic properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (46) ◽  
pp. 7078-7084 ◽  
Author(s):  
Jian-Guo Cheng ◽  
Jiao Liu ◽  
Wen-Quan Tong ◽  
Dan Wu ◽  
Fan Yang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Gas Adsorption ◽  
Selective Adsorption ◽  
Isophthalic Acid ◽  
Carboxylate Ligand ◽  
Co2 Gas

The reaction of Cu(ii)/Co(ii) with a N-heterocyclic carboxylate ligand produced two new MOFs with different topologies. The Cu-MOF showed selective adsorption for CO2 over CH4, and the antiferromagnetic properties existed in the two MOFs.

CO2 gas-adsorption calorimetry applied to the study of chemically activated carbons

2018 ◽  
Vol 136 ◽  
pp. 753-760 ◽  
Author(s):  
Débora Aline Soares Maia ◽  
José Carlos Alexandre de Oliveira ◽  
Marcelo Sandro Nazzarro ◽  
Karim Manuel Sapag ◽  
Raul Horácio López ◽  
...  
Keyword(s):  
Gas Adsorption ◽  
Activated Carbons ◽  
Adsorption Calorimetry ◽  
Co2 Gas

Breath-by-breath variation of FRC: effect on VO2 and VCO2 measured at the mouth

1979 ◽  
Vol 46 (6) ◽  
pp. 1122-1126 ◽  
Author(s):  
H. U. Wessel ◽  
R. L. Stout ◽  
C. K. Bastanier ◽  
M. H. Paul
Keyword(s):  
Steady State ◽  
Gas Exchange ◽  
Gas Flow ◽  
Co2 Gas ◽  
Mean Values ◽  
Gas Uptake ◽  
Source Data ◽  
Alveolar Level ◽  
Age Range

We examined breath-by-breath (B-B) variations of FRC (delta FRC) and their effect on measured O2 and CO2 gas exchange in 52 2- to 4-min segments of continuous air breathing obtained in 29 patients (age range 6--50 yr). Respiratory frequency ranged from 13 to 43 breaths/min, VE from 6.7 to 22.5 l/min (BTPS), and expired VT from 234 to 1,370 ml (BTPS). Computer analysis was based on the following source data measured at the mouth: inspired (VI) and expired (VE) gas flow, FN2, FO2 and FCO2. The analysis provides B-B evaluation of VI, VE, delta FRC in terms of VN2, and VO2 and VCO2 at the mouth and at the alveolar level, i.e., after correction for delta FRC. Significant B-B variations of FRC were found in all studies. delta FRC ranged from +360 to -360 ml (BTPS). For single respiratory cycles VI - VE is primarily a function of N2 exchange at the mouth (VMN2). VO2 and VCO2, uncorrected for delta FRC, are significantly more dispersed about mean values than the corrected gas uptakes (P less than 0.0005). The data support the view that the assumption of VIN2 = VEN2 is invalid for single respiratory cycles. Determination of breath-by-breath VO2 and VCO2 should therefore, not be based on steady-state gas uptake equations. It requires measurement of both inspired and expired breath volumes and evaluation of N2 gas exchange.

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