Following the hydrogenation reaction, the resulting paraffin stream is fractionated into various carbon ranges. The paraffins are recovered and are sent to the dehydrogenation process 44. If it is desired to recover the bottoms product 24 as a vapour stream, this can be done by taking a bottoms vapour stream from the column 20. The C nH 2n+1 chain is unbranched. In the case of a supported cobalt based catalyst, olefins, which are predominantly alpha olefins, only make up approximately 10% to 30%, typically less than 25%, by weight, of the fractionated hydrocarbon condensation product.
Such removal methods include hydrogenation, azeotropic distillation, extractive distillation, vapour phase dehydration, liquid phase dehydration and liquid-liquid extraction. One is an ethylene oligomerization to a wide range of linear alpha olefins technology being offered by a technology licensor. The solvent stream 21 preferably comprises more than 5% by weight, typically 6% by weight, water. The highly linear alkyl benzene 44 is then introduced to a sulphonation reactor 52 and sulphonated using sulphuric acid, oleum or sulphur trioxide. Following the exposure assessment, the environmental risk characterization for each protection target in the aquatic, terrestrial and soil compartment was determined. Linear alkyl benzene Linear alkylbenzene is a family of organic compounds with the formula C6H5CnH2n+1. Rhodia Specialty Chemicals India Ltd.
These two processing options are well known in the art and are not described in detail here. The linear alkylbenzene produced by the process of the invention is comparable to commercial grade linear alkyl benzene produced in conventional processes based on kerosene feedstock. Lesser the color Klett, better the quality of the product. The other is the Versipol technology. Excess ethylene is flashed off. The tops product is then recycled to the solvent stream 21. Alkylbenzenes derived from fischer-tropsch hydrocarbons and their use in drilling fluids 2000-02-29 2001-09-07 Chevron U.
During the low temperature Fischer-Tropsch reaction, a lighter hydrocarbon vapour phase is separated from a liquid phase comprising heavier liquid hydrocarbon products. Typically, the Fischer-Tropsch reaction is a low temperature Fischer-Tropsch reaction carried out in a slurry bed reactor at a temperature of 160° C. Nuclear Physics B - Proceedings Supplements. Fig 5 — Air Drying Process Fig 6 — Glycol Tower In order to remove the compression heat and to condense the moisture, the air is first cooled by cooling water and then by a glycol solution in the glycol tower. Some other processes might desire the use of Oleum or Sulphuric acid. The fractionated condensation product of a low temperature Fischer-Tropsch reaction described above 14 is fed into the extraction column 20 at, or near, the bottom thereof and a solvent stream 21 comprising a mixture of methanol and water is fed into the extraction column 20 at or near the top thereof. Sasol Technology Pty Ltd Original Assignee Sasol Technology Pty Ltd Priority date The priority date is an assumption and is not a legal conclusion.
At the time of loading the forklift will carry these drums to a loading station with an adjustable ramp. Our breakthrough catalysts and adsorbents help you achieve your desired production and product quality objectives. A second aspect of this invention relates to a process of producing or working-up three pre-determined hydrocarbon fractions from the product streams from a Fischer-Tropsch reaction. Additionally, it is possible to distil the paraffins and olefins overhead, while recovering the oxygenates as a bottoms product. In a preferred embodiment of the invention the oxygenate extraction process is a liquid-liquid extraction process that preferably takes place in an extraction column using a mixture of methanol and water as the solvent, wherein an extract from the liquid-liquid extraction is sent to a solvent recovery column from which a tops product comprising methanol, olefins and paraffins is recycled to the extraction column, thereby enhancing the overall recovery of olefins and paraffins. One set of these tubes contains the fluid that must be either heated or cooled. The industry exhibits a moderate level of vertical integration.
Regional Insights Countries such as China, India, Brazil, Russia, and South Africa are sights of high growth rates in the arena. Widely used for producing various detergents and emulsifiers,such as washing powder ,detergent of dishware,detergent of light or hard dirt,cleaner of textile industry,dyeing assistant,degreaser of plating and leather making industry ,and the deinking agent of paper-making industry,etc. It is mainly used to produce household detergents such as washing powder, detergent of dishware, detergent of light or hard dirt, cleaner of textile industry, dyeing assistant, degreaser of plating and leather making industry, and the deinking agent of paper-making industry, etc. Unsourced material may be challenged and removed. A checking about the effective regeneration is made by verifying the Silica gel indicator through the sight glasses, as well as by verifying the outlet temp. The olefins from the olefin paraffin feed 46 react with the benzene 48 in the alkylation reactor 42 to provide linear alkyl benzene 50, unreacted paraffins 52 and unreacted benzene 54. Calculations are carried out to transfer an approx.
Sulphur trioxide is currently the preferred process. A heavier hydrocarbon fraction is collected as stream 15 and transferred to a hydroconversion unit 70. This may be desirable because a high water content in the extraction column 20 will lead to increased solvent to feed ratios because of reduced solubility of oxygenates in the solvent , while a certain amount of water is necessary to achieve the extractive distillation effect in combination with methanol to recover all the paraffins and olefins as overhead products in the solvent recovery column 27. However, a cobalt-based catalyst is preferred for the low temperature reaction. The gas stream is contacted with a controlled stream of fresh organic raw material. A synthetic mixture of dodecane and dodecene is used in the example to represent Fischer-Tropsch feedstock. Normally, a high-boiling solvent is preferred for liquid-liquid extraction because the solvent recovery steps after extraction requires less energy than will be the case for a low-boiling solvent.
One of the problems of the linear alpha olefin industry is the wide range of products made by most of the processes. The unreacted paraffin 52 is recovered and sent to the dehydrogenation process 44 to produce a paraffin olefin mixture 46A which is supplied to the paraffin olefin line 46, and hydrogen 54. Water flooding can aid in oil recovery from 1% to between 20-40%. According to another aspect of the invention there is provided a process for producing an additional hydrocarbon fraction being hydrocarbon fraction D including medium to high molecular mass alkanes, both linear and isomerised, having a boiling point typically above 380° C. Additionally, it is possible to distil the paraffins and olefins overhead, while recovering the oxygenates as a bottoms product. The organic phase is an oxygenate, olefin and paraffin stream 31, which leaves the process as a product. The preferred materials for the synthetic drilling fluid application are , which are primarily made by isomerizing linear alpha-olefins to an internal position.