Use of furfural as intermediate in pesticide production es 5 manufacturing of blends formulations es 6 manufacturing of polymers es 7 use of furfural in the manufacturing of abrasive wheels, brake linings and refractories by using formulations es 8 use of furfural in the petroleum refining industry as extraction agent es 9. Inhibiting polymerization of furfural in extractive. Sulzer chemtech ltd, winterthur, switzerland introduction the use of countercurrent operating columns for liquid liquid extraction lle moved in the focus of the design engineers with the upcoming use of extraction in the. A wide variety of furfural extract oil options are available to you, such as grade standard. Degradation furfural in the unit will cause so many cost like losing solvent. The fate of furfural 2furancarboxaldehyde was investigated in male and female fischer 344 f344 rats given single oral doses of 1, 10 and 60 mgkg and male and female cd1 mice given 1, 20 and 200 mgkg carbonyl14c furfural.
Future feedstock for fuels and chemicals furfural, a sister chemical to the increasingly popular hydroxymethylfurfural or hmf molecule, is regaining attention as a biobased alternative for the production of everything from antacids and fertilizers to plastics and paints. Preparation of furfural and reaction kinetics of xylose. Furfural extraction article about furfural extraction by. Hemicellulose extraction and conversion process the biorefinery can be implemented in three main steps. The fate of furfural 2furancarboxaldehyde was investigated in male and female fischer 344 f344 rats given single oral doses of 1, 10 and 60 mgkg and male and female cd1 mice given 1, 20 and 200 mgkg carbonyl14cfurfural. Design of furfural extraction unit by hamad alahmadi on prezi. The furfural refining process is a solvent extraction process used to remove undesirable components of low lubricating oil quality naturally present in crude oil. Extraction of aromatic hydrocarbons from lube oil using. Effect of acid concentration on the extraction of furfural from corn cobs. Very rapid extraction of furfural, aided by fast mass transfer rates, is key to preventing furfural subsequent degradation. We selected a suitable ionic liquidorganic solvent extraction agent for building a biphasic reaction system, which was used to continuously extract 5hmf generated in the ionic liquid to the extraction agent used. Expired lifetime application number us584982a inventor.
Furfural yield calculations are simple in batch systems. The natural sources of furfural are rice husk, corn cobs and bagasse. Furfural has two major functional groups, an aldehyde cho and two olefin groups ch ch, and is a versatile compound for many applications. It is a colorless liquid, although commercial samples are often brown. Extraction unit by furfural university of technology iraq. A novel method for furfural recovery via gas stripping assisted vapor permeation by a polydimethylsiloxane membrane. Preparation of 5hydroxymethylfurfural by the catalytic. In 10 the extraction of aromatic compounds from lubricating oil using cosolvents formamide furfural and nmp furfural were. As part of the companys project to upgrade the existing furfural extraction unit to use n methyl 2 pyrrolidone nmp solvent to increase raffinate unit feed rate to reduce solvent consumption with enppi nominated as appointed as engineering contractor, the company is inviting international offers to four relevant bid packages. The production of furfural via diluteacid hydrolysis of lignocellulosic materials has been under study for many years. Furfiural yield values have been reported to be 4040% of the theoretical value in closed systems and 5080s when furfural is rapidly removed from the reaction medium. An investigation was conducted effect of addition cosolvent on solvent extraction process for two types of a lubricating oil fraction spindle. Gold refining by solvent extractionthe minataur process by a.
Pdf extraction of aromatic hydrocarbons from lube oil using. This invention relates to a method for inhibiting polymerization of furfural. Pdf the effect of solvent extraction of light lubricating oil on. Furfuralwater solutiontemperature diagram vaporliquid composition vaporliquid equilibrium physical properties of furfural. The reaction kinetics of xylose dehydration to furfural was investigated and it was found that the reaction order was 0. The process flow through the furfural extraction unit.
Us2654792a us3902a us390249a us2654792a us 2654792 a us2654792 a us 2654792a us 3902 a us3902 a us 3902a us 390249 a us390249 a us 390249a us 2654792 a us2654792 a us 2654792a authority us united states prior art keywords furfural zone line oil solvent prior art date 19491219 legal status the legal status is an assumption and is not a legal conclusion. Us2485071a inhibiting polymerization of furfural in. Furfural ex c9 bot 80 furfural extraction unit u33solvent drying section 81 no transcript 82 no transcript 83 solvent recovery section of solvent dewaxing unit 84 no transcript 85 propane deasphalting unit 86 no transcript 87 furfural extraction unit u33solvent recovery 88 no transcript 89 hydrotreatment reactions. Density is defined as the mass per unit volume and specific gravity is the ratio of mass. Effect of acid concentration on the extraction of furfural. In this paper, the traditional furfural extraction tower for lubricating oil was modified and the rotating discpacked tower was used to purify the. Gold refining by solvent extractionthe minataur process.
Expired lifetime application number us3902a inventor forrest e gilmore. Pdf furfural coke removal by antioxidants in oil refineries. The unit produces paraffinic or naphthenic raffinates suitable for further. This study demonstrates the use of a millireactor as intensified technology for the continuous production of furfural via acid dehydration of xylose in a biphasic media. Design practice for packed liquid liquid extraction columns. Extractions with furfural furfural aldehyde formed a mixture of brownish. There was a very high recovery more than 90% of dose of radioactivity in all dose groups in 72 hr. Physical properties of furfural ifc, supplier in furfural. One of the most popular, furfural extraction, is used by the farmers valley refinery to improve the lube oil viscosity index, color and carbon residue content.
Catalytic conversion of furfural extract from lubricating. In this paper, the traditional furfural extraction tower for lubricating oil. The technical process, equipment required, raw materials needed, unit operations, operation parameters, operation staff, available byproducts, economic considerations, possible. We take this opportunity to introduce troika an iso 9001 company, established in the year 1971. In solvent dewaxing, disruption of the vacuum will create a. Due to the polar nature of furfural, it will dissolve quite readily and form solutions with a variety of polar organic solvents like methanol, ethanol, chloroform, and dimethyl sulfoxide dmso.
After the reaction, the extraction agent phase was subjected to vacuum distillation to obtain the target product. Furfural is used as a selective solvent in petroleumrefining, as an extraction agent in the distillation of butadiene, as a solvent for the production of lightcolored wood rosins and as a solvent and processing aid in the production of anthracene. Abstractfurfural was prepared from corn cobs available locally in this study. Pdf an investigation was conducted effect of addition cosolvent on solvent extraction process for two. Sampling and analytical methods furfural organic method. Catalytic conversion of furfural extract from lubricating oil. The diameter of the pilot unit is usually in a range between 50 150. However, apc have informed epapii that the agreement does not include any special specifications which would limit the availability of the required. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.
Us2485071a us584982a us58498245a us2485071a us 2485071 a us2485071 a us 2485071a us 584982 a us584982 a us 584982a us 58498245 a us58498245 a us 58498245a us 2485071 a us2485071 a us 2485071a authority us united states prior art keywords furfural polymerization per cent thiocyanate extractive distillation prior art date 19450326 legal status the legal status is an. The unit produces paraffinic or naphthenic raffinates suitable for further processing into lube base stocks. Pdf furfural in oil refineries as a solvent for the separation of aromatic compounds with high selectivity used. This confirms the higher selectivity of nmp compared to furfural. Furfural is an organic compound with the formula c 4 h 3 ocho. Same pda unit installed at second lube refinery is designed with an improved extraction of heavy lubricating oil with minimal losses of propane solvent and energy.
Furfural production by continuous reactive extraction in a. There are several extraction processes used to improve the characteristics of lube oils. A comparison of the extraction properties of furfural and its ethylene acetal. Bryson synopsis the minataur process mintek alternative technology for au refining is a novel route for the production of highpurity gold using solvent extraction. One of the most popular, furfural extraction, is used by the farmers valley refinery to improve the lube. For the extraction with phenol and naphthalene, the molten solvent was mixed with coke for two hours and the mixture extracted with ether or ethyl alcohol respectively, filtered and washed with more ether or ethyl alcohol. Extraction of aromatic hydrocarbons from lube oil using different. The license agreement between apc and bechtel is confidential. Troika specialises in technology and equipment for vegetable oil industry. Solvent treating is a widely used method of refining lubricating oils as well as a host of other refinery stocks. Also, a generalized model is presented for calculation of the refractive index and specific gravity of. Sigmaaldrich is a leading life science and high technology company dedicated to providing highquality, safe and certified flavor ingredients with transparent and easily accessible documentation to customers around the globe. Solvent extraction of aromatic components from petroleum derived.
Furfural refining is a solvent extraction process used to remove undesirable. Ppt haldia refinery powerpoint presentation free to. A comparative study of the solvent powers of phenol, furfural and. Preparation of 5hydroxymethylfurfural by the catalytic degradation of cellulose in an ionic. General binary interaction parameters are computed and reported for estimating the liquid liquid equilibrium products between 50 and 70 c. The main problem of using furfural as extract solvent in oil refinery is making hard coke and corrosion. Dec 03, 2012 we take this opportunity to introduce troika an iso 9001 company, established in the year 1971. The unit produces paraffinic or naphthenic raffinates suitable for. Furfuralwater vaporliquid equilibrium 0 20 40 60 80 100 120 140 160 180 0 10 20 30405060 70 80 90 100 wt % furfural temperature c based on data from mains, g. Desulphurisation of petroleum coke by solvent extraction. Furfural extract is a byproduct from the extraction unit of lubricating oil by furfural to improve the viscosity index 1,2. The perfect blend of products and services that bring your creativity to life. Liquid extraction of furfural from aqueous solution. More specifically, this invention relates to the addition of selected organic compounds to furfural to inhibit the formation of polymeric materials when said furfural is subjected to elevated temperatures.
The various reactions such as acylation, acetylation, reductive amination to amines, reduction to alcohols, decarboxylation, oxidation to carboxylic acids, grignard reactions and aldol and knoevenagel condensation can occur in furfural through the. Furfural production using continuous feeding process was discussed by using the westpro modified chinese huaxia furfural technology as an example. The oil feedstock is introduced to a continuous countercurrent extractor at a temperature, which is the function of the feeds viscosity. The diesel produced by the fluid catalytic cracking and coker units contains up to. Production of furfural from xylose at atmospheric pressure. Pdf extraction of aromatic hydrocarbons from lube oil. In solvent dewaxing, disruption of the vacuum will create a potential fire hazard by allowing air to enter the unit. Complete patent searching database and patent data analytics services.
The extract, characterized by a black color and high viscosity, contains lubricating oil residues and is rich in highly condensed polycyclic aromatics. The details about this process can be obtained in other. Degradation furfural in the unit will cause so many cost like losing solvent and more shut. Mar 01, 2015 this confirms the higher selectivity of nmp compared to furfural. Furfural extraction unit at the apc has been made by apc on the basis of a bidding procedure which was carried out previously. What is the abbreviation for furfural extraction unit. Furfural c 4 h 3 ocho, also called 2furaldehyde, best known member of the furan family and the source of the other technically important furans. Production of furfural from xylose at atmospheric pressure by. Amir shafeeq, ayyaz muhammad, shahid sarfaraz, ziad akram, h.
Since distillation fractionation separates petroleum products into groups only by their boilingpoint ranges, impurities may remain. Yield of furfural on selected raw material on the basis of % weight of raw material per day is given in table i. It has an aldehyde group attached to the 2position of furan. Specific gravity related to time of flow of a fixed volume of the test sample density is defined as the mass per unit volume and specific gravity is the ratio of mass of a volume of a specified material at a specified temperature to the mass. A novel method for furfural recovery via gas stripping. The furfural refining process is a solvent extraction process used to remove undesirable components of low lubricating oil quality naturally present in crude oil distillate and residual stocks.