Solvent extraction is a process to extract the oil from oil bearing materials by means of a solvent. A typical solvent used is hexane, a by-product of petroleum. The solvent extraction plant is designed to extract oil directly from oil seeds containing less than 20% oil, like soybeans, after flaking. Or it extracts oils from pre-pressed or fully pressed cake of seeds containing more than 20% oil like sunflowers, peanuts, cotton seed, palm kernels, canola, copra, castor and a variety of other materials. Vegetable Oil Solvent Extraction Plant Turnkey Project Soybean Oil Solvent Extraction Turnkey Project,Palm Oil Solvent Extraction Turnkey Project,Sunflower Oil Solvent Extraction Turnkey Project,Plant Oil Solvent Extraction Turnkey Project Dingzhou Yongsheng Grain & Oil Machinery Co.,Ltd. , http://www.oilpresschina.com
Coastal coal transportation market conditions oscillated this week. On November 24, the cargo index closed at 2,209.69 points, up 3.2% from the previous week. The rising coal prices in major shipping ports in the North have fluctuated this week, and coal prices in the coal market in Tianjin have stabilized. The transient stimulus to the price of coal in the very cold of the century has subsided, and widespread fears about high coal prices remain lingering. Some coal-fired power plants in the eastern part of China’s coastal areas have experienced high levels of coal inventories this week. Coal demand has started to increase, transportation is active, and freight rates have risen. However, due to the influence of the Asian Games, the volume of goods shipped from Qinhuangdao to Guangzhou weakened, and some of the pallets were unloaded in the surrounding areas of Guangzhou. As a result, the freight rates of South China routes were mixed. On November 24th, the freight indices of Qinhuangdao to Shanghai and Ningbo routes closed at 2525.13 points and 1972.5 points respectively, up 1.7% and 5.0% respectively from last week; the freight index of Qinhuangdao to Guangzhou route closed at 1851.87 points, compared with the previous week. Rose 1.0%.
Coastal metal ore transport was also active this week, and the market fluctuates. On Nov. 24, the cargo index closed at 1153.96 points, up 1.1% from last week. Among them, the freight rate of Beilun-Nantong route increased by RMB 1/t to RMB 20/t; the freight index of this route closed at 1,174.47 points, up by 4.9% from last week.
Coastal grain transport prices have risen or declined this week. On November 24, the cargo index closed at 1463.04 points, a slight increase of 0.2% from last week. Snowfall in Northeast China affected short-distance transportation, coupled with a serious attitude of farmers reluctant to sell, and this week's northern port corn prices rose by 20 to 30 yuan/ton from the previous period. While the volume of the South is adequate. The price of corn in the north and south was partially upside down. The shipment volume decreased and the freight rate fell. On November 24, the Yingkou-Shenzhen route market price index closed at 1318.93 points, down 5.3% from last week.
Coastal crude oil and refined oil tariffs remained stable this week, and traffic volumes increased. Recently, a series of measures such as the increase in diesel production, the increase in diesel imports, and delays in the maintenance of refineries have achieved initial success in alleviating the diesel shortage. According to the “Daily Economic News†report, Sinopec and PetroChina’s two major groups stated that their consecutive 8 months of declining diesel inventories began to rebound after November 19, and diesel stocks are expected to reach normal levels at the end of December.
The purpose of solvent plant extraction is to remove most of the oil contained in the seed. Extraction is conducted on prepared seeds or, as generally occurs in the case of high oil content seeds, the cake obtained from pre-pressing. Solvent extraction consists of a sequence of five operations:
Preparation of seeds for extraction which includes pre-pressing for high oil content seeds.
Extraction of oil from the prepared material with the aid of a food-grade solvent.
Desolventising-toasting of the de-oiled seed/meal, often combined with drying and cooling of the said meal.
Distillation, to remove the solvent from the extracted oil.
Recovery of solvent, which is reused again and again at the extractor level.
Simple in structure with stable performance;
Additional horizontal grid plate prevents the miscella from flowing back into the material cell to ensure the best extraction effect;
The wet meal is discharged by the material discharger which continuously discharges the wet meal onto the wet meal conveyor. This avoids meal bridging, un-uniform wet meal discharging and extends the serviceable life of the wet meal conveyor.
Composed of pre-extraction, extraction and draining sections. There is material turnover in the process of extraction to make the extraction uniform and thorough. Special self-cell solvent spraying ensures the best effect during extraction.
Features of the Solvent Extraction Process
Evaporation takes place in a vacuum for the best oil quality.
Extraction system can process different raw materials.
Solvent recovery system from vent gas is particularly absorbent.
With full energy conservation and repeat utilization, steam consumption is markedly reduced.
Solvent Extraction Plants Supplied by Yongsheng
In order to meet different clients` requirements, we have a wide range of equipment with capacities from 300 kg to 100 metric tons. When refined, oil grades may qualify as Grade 1, Grade 2, Grade 3 or Grade 4. There are two technologies: one is batch, the other is continuous. Normally we adopt batch-type processing for capacities less than 20 t/d. Otherwise the process adopted is semi-continuous or continuous.
We continue to research new equipment. Yongsheng develops equipment designed to be fully automatic, utilizing advanced technology that can be combined according to different clients` requirements. The latest refining equipment consists of many single units and has a self-contained heating system which saves energy since it does not use a boiler. This equipment requires a smaller workspace and costs less. Furthermore, it has a wider range of functions and can be used to produce Grade 1, Grade 2, Grade 3 and Grade 4 oil.
Coastal transport market conditions this week rebounded. On November 24, the coastal (bulk) freight index issued by Shanghai Shipping Exchange closed at 1712.57 points, up 2.3% from last week. Among the major cargoes, the freight index for coal and metal ore increased or decreased, the grain freight index fluctuated, and the freight index for crude oil and refined oil remained stable.