Proses Pirolisis Limbah Plastik High Density Polyethylene (Hdpe) Menjadi Baha…

ABSTRACT The high-density polyethylene (HDPE) plastic bags, more commonly known as "kantong kresek" in Indonesian, have become the most prevalent plastic waste polluting the environment. The plastic, composed of long-chain hydrocarbon molecules, is highly resistant to natural degradation, necessitating technologies that can manage plastic waste without creating new waste. The pyrolysis pro…

Proses Pirolisis Limbah Plastik High Density Polyethylene (Hdpe) Menjadi Baha…

ABSTRACT The high-density polyethylene (HDPE) plastic bags, more commonly known as "kantong kresek" in Indonesian, have become the most prevalent plastic waste polluting the environment. The plastic, composed of long-chain hydrocarbon molecules, is highly resistant to natural degradation, necessitating technologies that can manage plastic waste without creating new waste. The pyrolysis pro…

Pembuatan Lilin Aromaterapi (Ekstrak Oleoresin Daun Peppermint Dan Bunga Ceng…

ABSTRACT Aromatherapy candles are an alternative application of inhaling aroma vapor produced from a few drops of essential oil used, which produces an aroma that gives a therapeutic effect when burned to function as a sedative and room freshener. Clove flowers and peppermint leaves contain essential oils so they can be used as aromatherapy candles. This research studied the effect of adding p…

Analisa Perbedaan Nilai Porosity (Air Permeability) Offset Paper Dan Copy Pap…

ABSTRAK Porosity is defined as the amount of air (ml/min) that can be passed through from one side of the paper to the other. Paper porosity also affects the drying process and porosity needs to be maintained to make it easier to adjust printer ink and make it easier to vacuum feed on printing and copying machines. In the paper industry, there are two types of paper, that are offset paper and …

Pengaruh Density, Temperature, Dan Weak Wash Liquor (Wwl) Terhadap Total Titr…

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Menentukan Optimum Dosis Penggunaan Wet End Oba (Optical Brightenic Agent) Te…

ABSTRACT Optical Brightenic Agent (OBA) is a compound that can give a light effect to an object that is exposed to light, so that the object will be whiter and luminous. Utilization of OBA at PT RAPP is used as an auxiliary material in achieving paper optical properties that comply with specified standards. OBA consists of three types, namely disulpho (wet end), tetrasulpho, and hexasulpho…

Analisis Pengaruh Kecepatan Thickener Terhadap Konsistensi Broke Dan Arus Lis…

ABSTRACT Broke System is one of the important materials in paper making. Broke is a fiber obtained from a sheet of paper obtained from a process on a paper machine. This fiber is called secondary fiber, because broke is a source of fiber obtained from recycled reject paper. Apart from paper breaks, broke can also be obtained from paper trim (even distribution of paper edges). Broke is divi…

Efisiensi Proses Absorpsi Gas Clo2 Di Clo2 Absorber #5 Pt Riau Andalan Pulp A…

ABSTRACT Chlorine dioxide (ClO2) is a chemical used as a bleaching agent in the bleaching pulp process. At PT RAPP's Integrated ClO2 Plant, Chlorine dioxide solution with a concentration of 10 ± 0.2 g/L was obtained through the absorption process of ClO2 gas with chilled water in the Absorber. The concentration of the desired solution is determined by how efficiently the absorption proces…

Pengaruh Dan Efektivitas Cleaning Super Concentrator Pada Evaporator #5

ABSTRACT Evaporator #5 is a unit used to thicken black liquor from 15% to 80% solid content before it is incinerated in recovery boiler. Black liquor is rich in sodium salts content, therefore in thickening process these salts exceed its solubility limit then precipitated in form of scale that decrease the evaporator’s performance. Scales in evaporator #5 can be removed using weak black liqu…

Analisis Perhitungan Energy Balance Heat Exchanger Shell And Tube Dan Mass Ba…

ABSTRACT Heat exchangers 411E104 and 411E237 are types of shell and tube heat exchangers. The shell part is filled with the cold medium, which is soft water, and the tube part is filled with the hot medium, which is black liquor. Soft water is a type of water with low levels of calcium and magnesium, while black liquor is the residual liquor after the cooking process. Soft water is purchased f…

Analisis Active Alkali Charge Terhadap Yield Pada Kraft Pulp A Model Fiberlin…

ABSTRACT Active alkali charge is the combined concentration of sodium hydroxide (NaOH) and sodium sulfide (Na2S) solutions in white liquor. The active alkaline charge in white liquor is useful for degrading lignin and other compounds (extractive) in wood and dissolving simple sugar groups that are still united in the pulp. This study aims to determine the effect of active alkaline charge on yi…

Strategi Shade Change Dari Shade 04 Ke 08

ABSTRACT World paper consumption increases every year. Currently, the world's need for paper is around 394 million tons, the growth in world paper demand is estimated to grow by an average of 2.1 percent per year so that the paper industry is required to produce paper in accordance with production targets and meet the paper quality set by Riau Andalan Kertas (RAK) technical. One way to achieve…

Analisis Pengaruh Parameter Pemasakan Continuous Digester Terhadap Kappa Numb…

ABSTRACT The cooking process of pulp can be considered successful if the desired kappa target is achieved. There has been technological change in the pulp making process, particularly in the cooking process which includes a shift from using a super batch digester to continuous digester, requiring a reassessment of each cooking parameter that affect kappa number. Through this research, the infl…

Pengaruh Natrium Karbonat (Na2co3) Dalam Intermediate Black Liquor (Ibl) Terh…

ABSTRACT This content can have a bad impact on the evaporator, which can cause scale. The purpose of observation from this final project is to determine the effect of the amount of sodium carbonate (Na2CO3) in the intermediate black liquor (IBL) on running time, and determine the optimal running time on evaporator #3. In the evaporator, running time is the period of time when the evaporator un…

Improve Old Soft Water To Fiberline #1 Zero Hardness

ABSTRACT One of the departments under the auspices of Riau Prima Energi's business unit is the Power Side Water Treatment Plant division. Soft Water in Fiberline is used as dilution in bleaching process. The quality of Soft Water parameters (total hardness) must be maintained because the content of Ca and Mg will affect the next process. The regeneration process in Soft Water is carried out by…

Memaintain Quality Turbidity Process Water 1 Ntu

ABSTRACT Water Treatment Plant is a department that functions to provide process water and raw materials for boiler feed water sourced from the Kampar river. Raw water from the water intake is pumped to the water treatment plant. In the water treatment process, one of the water quality parameters that must be considered is turbidity. PT. RAPP maintains a quality standard target with a maximum …

“Pengaruh Solid Heavy Black Liquor (Hbl) Dan Total Firing Liquor Terhadap T…

ABSTRACT In the pulp and paper industry, the recovery boiler is an important part that has a role in reducing the amount of waste and producing energy. The recovery boiler is used to burn waste material (black liquor) into ash and produce steam which will be used as the main energy. Total firing liquor and solid heavy black liquor (HBL) are factors that influence in recovery boilers. The main …

Pengaruh % Solid Dan Nilai Kalor Bahan Bakar Heavy Black Liquor Terhadap Stea…

ABSTRACT PT RAPP reuses weak black liquor obtained from the pulping process with the kraft pulp method which produces residual chemicals and substances dissolved in solution in the form of a liquid called black liquor in the digester and has a concentration of 15 - 18%total solids. In order for the organic content to be burned in the recovery boiler, the weak black liquor is concentrated up to…

Study Of Poly Aluminium Chloride Pump (Pac Pump)

ABSTRACT In the world industry, to move a liquid material from one place to another, a pump is used, so the pump plays a very important role. A pump is a machine/equipment used to lift liquids from a lower surface to a higher surface or move liquids from a place of low pressure to a place of higher pressure. At PT. RAPP, in the water treatment plant (WTP) unit, has 2 PAC Pumps where one pu…

Pengaruh Flow Bio-Sludge Dan Proses Di Screw Press Terhadap Consistency Sludge

ABSTRACT Flow bio-sludge to mixing tank is the sludge flow from bio-sludge that will be transferred into the mixing tank to be processed into sludge cake, which will be used as fuel in the power boiler. The dewatering process uses a screw press, where the parameters involved are speed, torque, and feed flow. The aim of this research is to determine the effect of flow bio-sludge and screw press…