CN220520435U - Animal and plant grease processingequipment - Google Patents
Animal and plant grease processingequipment Download PDFInfo
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- CN220520435U CN220520435U CN202321824792.5U CN202321824792U CN220520435U CN 220520435 U CN220520435 U CN 220520435U CN 202321824792 U CN202321824792 U CN 202321824792U CN 220520435 U CN220520435 U CN 220520435U
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- 239000004519 grease Substances 0.000 title description 3
- 238000000926 separation method Methods 0.000 claims abstract description 116
- 238000006243 chemical reaction Methods 0.000 claims abstract description 58
- 239000002994 raw material Substances 0.000 claims abstract description 47
- 239000000295 fuel oil Substances 0.000 claims abstract description 39
- 239000012535 impurity Substances 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000005406 washing Methods 0.000 claims abstract description 26
- 238000007670 refining Methods 0.000 claims abstract description 24
- 230000018044 dehydration Effects 0.000 claims abstract description 23
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 23
- 239000010775 animal oil Substances 0.000 claims abstract description 16
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 16
- 239000008158 vegetable oil Substances 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 claims description 66
- 235000019198 oils Nutrition 0.000 claims description 66
- 239000001257 hydrogen Substances 0.000 claims description 36
- 229910052739 hydrogen Inorganic materials 0.000 claims description 36
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 35
- 239000007789 gas Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000003225 biodiesel Substances 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 claims description 10
- 235000019737 Animal fat Nutrition 0.000 claims 7
- 235000019871 vegetable fat Nutrition 0.000 claims 7
- 239000003054 catalyst Substances 0.000 abstract description 23
- 238000000034 method Methods 0.000 abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 9
- 238000009835 boiling Methods 0.000 abstract description 6
- 238000004939 coking Methods 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 53
- 239000002184 metal Substances 0.000 description 20
- 238000005984 hydrogenation reaction Methods 0.000 description 13
- 150000003839 salts Chemical class 0.000 description 11
- 239000007787 solid Substances 0.000 description 9
- 238000005194 fractionation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010806 kitchen waste Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to an animal and vegetable oil processing device which comprises a raw material dehydration device, an up-flow reaction device, a hot high-pressure separation device, a first cold high-pressure separation device, a first product separation device, a heavy oil filtering and washing device, a supplementary refining reaction device, a second cold high-pressure separation device and a second product separation device; the animal and vegetable oil processing device can solve the problems of coking and blockage of the fixed bed catalyst bed in the process of processing high-impurity and high-metal-content raw materials; the problem that the fixed bed catalyst is easy to be pulverized to cause the catalyst to be deactivated in the process of processing the raw materials with high oxygen content can be solved; can solve the problem that the conventional boiling bed is not thorough in hydrodeoxygenation and impurity removal of the raw materials.
Description
Technical Field
The utility model relates to an animal and vegetable oil processing device, in particular to an animal and vegetable oil processing device with high metal content and high impurity content, and more particularly relates to an animal and vegetable oil hydrogenation biodiesel production device with high metal content and high impurity content.
Background
The second-generation biodiesel is a renewable biomass fuel produced by taking non-edible animal and vegetable oil such as palm rancidity oil, acidified oil, kitchen waste oil and the like as raw materials through a hydrogenation method, has the characteristics of reproducibility, excellent biodegradability, low sulfur content, low pollutant emission and the like compared with mineral diesel, and is a real green diesel which becomes an ideal alternative energy source of petroleum fuel.
Researches show that palm rancidity oil, acidified oil, kitchen waste oil and the like all contain a large amount of metal ions and higher impurity content, and due to the special properties of the oil, such as the characteristics of conductivity, high oxygen content, poor thermal stability, high boiling point and the like, conventional demetallization methods such as an electric desalting method, a distillation method and the like cannot be implemented, such as the electrode is easily broken down in the electric desalting process, the fatty acid in the oil is easily condensed and cracked in the distillation process, and more difficulties are brought to subsequent processing; because the grease viscosity is great, the filter is extremely easy to cause filter blockage in the process of filtering impurities by adopting the filter with higher precision, and coarse filtration is adopted, so that the metal and the impurities in the filter are brought into a subsequent reaction system, the catalyst is deactivated rapidly, and the operation period and the economic benefit of the device are seriously influenced.
The following problems exist with conventional hydrogenation units: (1) by adopting a conventional fixed bed hydrogenation device, the metal and impurities are easy to cause coking and blockage of a catalyst bed layer, and the operation period is seriously shortened; (2) by adopting a conventional fixed bed hydrogenation device, the high oxygen content is easy to cause pulverization and inactivation of a fixed bed catalyst, so that the catalyst cost is greatly increased; (3) by adopting a conventional ebullated bed or suspended bed hydrogenation device, the deoxidization is not thorough, and qualified biodiesel cannot be produced.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide an animal and vegetable oil processing device.
The aim of the utility model is achieved by the following technical scheme: an animal and vegetable oil processing device comprises a raw material dehydration device, an upflow reaction device, a hot high-pressure separation device, a first cold high-pressure separation device, a first product separation device, a heavy oil filtering and washing device, a supplementary refining reaction device, a second cold high-pressure separation device and a second product separation device;
the inlet of the raw material dehydration device is connected with a raw material oil conveying pipeline, the outlet of the raw material dehydration device comprises a dehydrated raw material oil outlet, and the dehydrated raw material oil outlet is connected with the inlet of the upflow reaction device;
the outlet of the upflow reaction device comprises a first product outlet, and the first product outlet is connected with the inlet of the thermal high-pressure separation device;
the outlet of the hot high-pressure separation device comprises a hot high-pressure gas outlet and a hot high-pressure oil outlet, and the hot high-pressure gas outlet is connected with the inlet of the first cold high-pressure separation device;
the outlet of the first cold high-pressure separation device comprises a first cold high-pressure oil separation outlet, and the inlet of the first product separation device is respectively connected with the hot high-pressure oil separation outlet and the first cold high-pressure oil separation outlet;
the outlet of the first product separation device comprises a heavy fraction outlet and a light fraction outlet, and the heavy fraction outlet is connected with the inlet of the heavy oil filtering and washing device;
the outlet of the heavy oil filtering and washing device comprises a clean heavy fraction outlet, and the inlet of the complementary refining reaction device is respectively connected with the light fraction outlet and the clean heavy fraction outlet;
the outlet of the complementary refining reaction device comprises a second product outlet, and the second product outlet is connected with the inlet of the second cold high-pressure separation device;
the outlet of the second cold high-pressure separation device comprises a second cold high-pressure oil separation outlet, and the second cold high-pressure oil separation outlet is connected with the inlet of the second product separation device;
the outlet of the second product separation device comprises a biodiesel outlet and a biological light oil outlet.
Further, the outlet of the first cold high-pressure separation device further comprises a first cold high-pressure gas-separating outlet, and a first hydrogen circulating pipeline is connected between the first cold high-pressure gas-separating outlet and the inlet of the upflow reaction device.
Further, the first hydrogen circulation pipeline is connected with a first new hydrogen delivery pipeline.
Further, a heavy oil circulation pipeline is connected between the heavy fraction outlet and the inlet of the heavy oil filtering and washing device, and the outlet of the heavy oil circulation pipeline is connected with the inlet of the upflow reaction device.
Further, the outlet of the second cold high-pressure separation device further comprises a second cold high-pressure gas-separating outlet, and a second hydrogen circulating pipeline is connected between the second cold high-pressure gas-separating outlet and the inlet of the supplementary refining reaction device.
Further, the second hydrogen circulation pipeline is connected with a second new hydrogen delivery pipeline.
Further, the outlet of the raw material dehydration device further comprises a first water outlet and an impurity outlet, the outlet of the first cold high-pressure separation device further comprises a first cold high-water outlet, the outlet of the heavy oil filtering and washing device further comprises a second water outlet and an impurity outlet, and the outlet of the second cold high-pressure separation device further comprises a second cold high-water outlet.
Further, the outlet of the first product separation device also includes a first other product outlet, and the outlet of the second product separation device also includes a second other product outlet.
The utility model has the beneficial effects that: the animal and vegetable oil processing device comprises a raw material dehydration device, an upflow reaction device, a hot high-pressure separation device, a first cold high-pressure separation device, a first product separation device, a heavy oil filtering and washing device, a supplementary refining reaction device, a second cold high-pressure separation device and a second product separation device; raw oil is dehydrated by a raw material dehydration device, then is subjected to raw material pre-hydrogenation by an upflow reaction device with good trafficability, most of oxygen in the raw material is removed, metal ions are converted into metal salts, the metal salts and impurities in the raw oil are distilled and separated along with products by a hot high-pressure separation device, a first cold high-pressure separation device and a first product separation device in sequence, clean distillate oil and a small amount of heavy oil containing solid impurities and metal salts are obtained, the clean distillate oil directly enters a complementary refining reaction device to complete deep deoxidation and impurity removal, the heavy oil containing the solid impurities and the metal salts is filtered and washed by a heavy oil filtering and washing device to remove the solid impurities and the metal salts in the heavy oil, and then the heavy oil is sent to the complementary refining reaction device to complete deep deoxidation and impurity removal, and the products are sequentially subjected to gas, water and other impurities removal by a second cold high-pressure separation device and a second product separation device to obtain the final product biodiesel.
The animal and vegetable oil processing device has the characteristics of good trafficability, low catalyst cost and the like by adopting the upflow reactor, can realize the pre-hydrogenation of the oil with high metal and high impurity content, and solves the problems of catalyst bed blockage and coking.
The animal and vegetable oil processing device disclosed by the utility model is used for washing and filtering semi-finished heavy oil containing metal and impurities after pre-hydrogenation by adopting the heavy oil filtering and washing device, so that the problems of difficult filtering and easy emulsification of raw materials are solved, clean raw materials are provided for supplementing and refining, bed blockage and catalyst poisoning are avoided, and the operation period is prolonged.
The animal and vegetable oil processing device provided by the utility model adopts the thermal high-pressure separation device, so that metal and solid impurities are prevented from entering a subsequent heat exchanger, coking and abrasion of the heat exchanger are avoided, and energy is saved.
The animal and vegetable oil processing device can solve the problems of coking and blockage of the fixed bed catalyst bed in the process of processing high-impurity and high-metal-content raw materials; the problem that the fixed bed catalyst is easy to be pulverized to cause the catalyst to be deactivated in the process of processing the raw materials with high oxygen content can be solved; can solve the problem that the conventional boiling bed is not thorough in hydrodeoxygenation and impurity removal of the raw materials.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The reference numerals are: the raw material dehydration device 1, the raw material oil delivery pipe 11, the dehydrated raw material oil outlet 12, the first water and impurity outlet 13, the upflow reaction device 2, the first product outlet 21, the hot high pressure separation device 3, the hot high pressure gas outlet 31, the hot high pressure separation device 32, the first cold high pressure separation device 4, the first cold high pressure gas outlet 41, the first cold high pressure gas outlet 42, the first hydrogen circulation pipe 43, the first new hydrogen delivery pipe 44, the first cold high pressure water outlet 45, the first product separation device 5, the heavy fraction outlet 51, the light fraction outlet 52, the heavy oil circulation pipe 53, the first other product outlet 54, the heavy oil filtration washing device 6, the clean heavy fraction outlet 61, the second water and impurity outlet 62, the supplemental refining reaction device 7, the second product outlet 71, the second cold high pressure separation device 8, the second cold high pressure gas outlet 81, the second cold high pressure gas outlet 82, the second hydrogen circulation pipe 83, the second new hydrogen delivery pipe 84, the second cold high pressure water outlet 85, the second product separation device 9, the biodiesel outlet 91, the second biodiesel outlet 92, the second light oil outlet 93, and the other products 93.
Detailed Description
The present utility model is further described below with reference to examples and fig. 1 for the understanding of those skilled in the art, and the description of the embodiments is not intended to limit the present utility model.
Referring to fig. 1, an animal and vegetable oil processing device comprises a raw material dehydration device 1, an up-flow reaction device 2, a hot high-pressure separation device 3, a first cold high-pressure separation device 4, a first product separation device 5, a heavy oil filtering and washing device 6, a supplementary refining reaction device 7, a second cold high-pressure separation device 8 and a second product separation device 9;
the inlet of the raw material dehydration device 1 is connected with a raw material oil conveying pipeline 11, the outlet of the raw material dehydration device 1 comprises a dehydrated raw material oil outlet 12, and the dehydrated raw material oil outlet 12 is connected with the inlet of the upflow reaction device 2;
the outlet of the upflow reaction device 2 comprises a first product outlet 21, and the first product outlet 21 is connected with the inlet of the thermal high-pressure separation device 3;
the outlet of the hot high-pressure separation device 3 comprises a hot high-pressure gas outlet 31 and a hot high-pressure oil outlet 32, and the hot high-pressure gas outlet 31 is connected with the inlet of the first cold high-pressure separation device 4;
the outlet of the first cold high-pressure separation device 4 comprises a first cold high-pressure oil outlet 41, and the inlet of the first product separation device 5 is respectively connected with the hot high-pressure oil outlet 32 and the first cold high-pressure oil outlet 41;
the outlet of the first product separation device 5 comprises a heavy fraction outlet 51 and a light fraction outlet 52, the heavy fraction outlet 51 being connected to the inlet of the heavy oil filter washing device 6;
the outlet of the heavy oil filtering and washing device 6 comprises a clean heavy fraction outlet 61, and the inlet of the complementary refining reaction device 7 is respectively connected with the light fraction outlet 52 and the clean heavy fraction outlet 61;
the outlet of the finishing reaction device 7 comprises a second product outlet 71, the second product outlet 71 being connected to the inlet of the second cold high pressure separation device 8;
the outlet of the second cold high-pressure separation device 8 comprises a second cold high-pressure oil outlet 81, and the second cold high-pressure oil outlet 81 is connected with the inlet of the second product separation device 9;
the outlets of the second product separation device 9 include a biodiesel outlet 91 and a bio-light oil outlet 92.
The animal and vegetable oil processing device comprises a raw material dehydration device 1, an upflow reaction device 2, a hot high-pressure separation device 3, a first cold high-pressure separation device 4, a first product separation device 5, a heavy oil filtering and washing device 6, a supplementary refining reaction device 7, a second cold high-pressure separation device 8 and a second product separation device 9; raw oil is dehydrated by a raw material dehydration device 1, then is subjected to raw material pre-hydrogenation by a high-pass upflow reaction device 2, most of oxygen in the raw material is removed, metal ions are converted into metal salts, the metal salts and impurities in the raw oil are distilled and separated along with products by a hot high-pressure separation device 3, a first cold high-pressure separation device 4 and a first product separation device 5 in sequence, clean distillate oil and a small amount of heavy oil containing solid impurities and metal salts are obtained, the clean distillate oil directly enters a complementary refining reaction device 7, deep deoxidization and impurity removal are completed, the heavy oil containing the solid impurities and the metal salts is filtered and washed by a heavy oil filtering and washing device 6, the solid impurities and the metal salts are removed, the heavy oil is sent to the complementary refining reaction device 7, and the products are sequentially subjected to gas, water and other impurities removal by a second cold high-pressure separation device 8 and a second product separation device 9, so that the final product biodiesel is obtained.
In this embodiment, the outlet of the first cold high pressure separation device 4 further includes a first cold high-pressure gas outlet 42, and a first hydrogen circulation pipe 43 is connected between the first cold high-pressure gas outlet 42 and the inlet of the upflow reaction device 2.
In this embodiment, a first new hydrogen delivery pipe 44 is connected to the first hydrogen circulation pipe 43.
In this embodiment, a heavy oil circulation pipe 53 is connected between the heavy fraction outlet 51 and the inlet of the heavy oil filtering and washing device 6, and the outlet of the heavy oil circulation pipe 53 is connected to the inlet of the upflow reactor 2.
In this embodiment, the outlet of the second cold high pressure separation device 8 further includes a second cold high-pressure gas outlet 82, and a second hydrogen circulation pipe 83 is connected between the second cold high-pressure gas outlet 82 and the inlet of the supplemental refining reaction device 7.
In this embodiment, a second new hydrogen delivery pipe 84 is connected to the second hydrogen circulation pipe 83.
In this embodiment, the outlet of the raw material dehydration device 1 further includes a first water and impurity outlet 13, the outlet of the first cold high-pressure separation device 4 further includes a first cold high-water outlet 45, the outlet of the heavy oil filtering and washing device 6 further includes a second water and impurity outlet 62, and the outlet of the second cold high-pressure separation device 8 further includes a second cold high-water outlet 85.
In this embodiment, the outlet of the first product separation device 5 further comprises a first further product outlet 54, and the outlet of the second product separation device 9 further comprises a second further product outlet 93.
In this embodiment, the raw material dehydration device 1 includes at least one dehydration tower or dehydration tank. The dewatering device is used for removing water possibly carried in the raw oil, and at least one raw material heater is generally arranged before the raw oil enters the dewatering tower and/or the dewatering tank according to requirements. The effect after dehydration by the dehydration device is as follows: the water content of the dehydrated feedstock is generally less than 5000ppm, preferably less than 2000ppm.
In this embodiment, the upflow reactor 2 comprises at least one upflow reactor, at least one group of high pressure feed pumps, at least one feed heating furnace and at least one high pressure heat exchanger. The upflow reactor refers to a reactor with the flow direction of main flow medium upward, and can be any one bed layer or a combination of a plurality of bed layers of a fixed bed, a boiling bed, a suspension bed, an online intermittent replacement bed, a moving bed and the like, and specifically, the upflow reactor is generally a boiling bed and/or a suspension bed reactor, so that the utility model achieves the best use effect: the upflow reactor is preferably a ebullated bed reactor, and the reactor is preferably filled with ebullated bed catalyst. The boiling catalyst is typically a spherical or columnar catalyst, but may also be a liquid catalyst. In order to achieve the best use effect of the utility model: the ebullated bed catalyst is preferably a spherical catalyst, the diameter of the spherical catalyst is generally 0.1 to 3mm, preferably 0.3 to 1.5mm.
The upflow reactor functions as: ensuring that impurities and metal components in the raw materials can smoothly pass through the reactor, and avoiding the blockage of a catalyst bed layer caused by accumulation of the impurities and the metal components in the reactor, wherein the catalyst is used for removing at least 50 percent of oxygen, preferably at least 80 percent of oxygen in the raw materials.
The function of the feed-in furnace is to heat the reaction feed to a predetermined temperature, ensuring the necessary reaction temperature conditions. The high-pressure heat exchanger is used for recovering the reaction heat in the hydrogenation process and reducing the energy consumption. The high-pressure feed pump pressurizes the raw oil to a predetermined pressure, ensuring necessary reaction pressure conditions.
In this embodiment, the thermal high pressure separator 3 comprises at least one thermal high pressure separator. The hot high-pressure separator has the function of separating hydrogenation products into hot high-pressure oil and cold high-pressure oil, and the hot high-pressure oil is directly sent to the first product separation device 5 after being depressurized, so that the higher temperature can be kept, and the heating energy consumption of the product separation device is saved. At least one hot high-pressure gas-distributing cooler is arranged on the hot high-pressure gas-distributing pipeline according to the requirement.
In this embodiment, the first cold high pressure separator 4 comprises at least one cold high pressure separator. The first cold high-pressure separator is used for separating the cooled hot high-pressure gas into first cold high-pressure gas, first cold high-pressure oil and first cold high-pressure water; according to the requirement, a first circulating hydrogen compressor and a first new hydrogen compressor are further arranged, the first circulating hydrogen compressor is used for pressurizing the first cold high-pressure gas and then circulating the first cold high-pressure gas as first circulating hydrogen to the inlet of the upflow reaction device 2, the first new hydrogen compressor is used for compressing the new hydrogen to a certain pressure and sending the new hydrogen to the upflow reaction device 2, and the necessary reaction pressure is ensured.
In this embodiment, the first product separation device 5 comprises at least one hot low pressure separator, at least one cold low pressure separator, and at least one fractionation column. The first product separation device 5 functions as: the hot high-fraction oil and the first cold high-fraction oil are separated into a light fraction and a heavy fraction by adopting a separation and fractionation method, and the gas in the light fraction and the heavy fraction is removed. A stabilizer or stripper is generally provided before the fractionation column as needed, and functions to remove the hot high-fraction oil and the gas and a small amount of light components in the first cold high-fraction oil so as to ensure the separation effect of the fractionation column.
In this embodiment, the heavy oil filtering and washing device 6 includes at least one filtering device and at least one water washing device. The filtering device is used for filtering out impurity components in the heavy fraction and providing clean raw materials for the subsequent supplementary refining reaction device 7. The filtration device may be one or a combination of several of a filter, a centrifuge, a cyclone separator, a settler, etc. capable of removing solid impurities. The filtering device is used for reducing the content of solid impurities in the heavy oil to 150ppm, preferably to less than 100ppm.
The water washing device is used for removing residual metal salts and acids in the heavy fraction, and the metal ion content is generally reduced to 80ppm, preferably to less than 50ppm.
In this embodiment, the finishing reaction device 7 comprises at least one finishing reactor, at least one group of high-pressure feed pumps, at least one feed heating furnace and at least one high-pressure heat exchanger. The role of the finishing reaction 7 is to remove the remaining oxygen and sulphur from the feed. The finishing reactor may be one or more of a fixed bed reactor, ebullated bed reactor, suspended bed reactor, micro expanded bed reactor, in-line replacement bed reactor. In order to achieve the best use effect of the utility model: the finishing reactor is preferably a fixed bed reactor. The fixed bed reactor is filled with a fixed bed catalyst.
The function of the feed-in furnace is to heat the reaction feed to a predetermined temperature, ensuring the necessary reaction temperature conditions. The high-pressure heat exchanger is used for recovering the reaction heat in the hydrogenation process and reducing the energy consumption. The high-pressure feed pump pressurizes the raw oil to a predetermined pressure, ensuring necessary reaction pressure conditions.
In this embodiment, the second cold high pressure separator 8 comprises at least one cold high pressure separator. The second cold high-pressure separator is used for separating the complementary refining reaction product into second cold high-pressure gas, second cold high-pressure oil and second cold high-pressure water; and a second recycle hydrogen compressor and a second new hydrogen compressor are also arranged according to the requirement, wherein the second recycle hydrogen compressor is used for pressurizing the second cold high-pressure gas and then recycling the second cold high-pressure gas to the inlet of the supplementary refining reaction device 7 as second recycle hydrogen, and the second new hydrogen compressor is used for compressing the new hydrogen to a certain pressure and sending the new hydrogen to the supplementary refining reaction device 7 so as to ensure the necessary reaction pressure.
In this embodiment, the second product separation means 9 comprises at least one cold low pressure separator and at least one fractionation column. The second product separation device 9 is used for separating the second cold high-separation oil into biological light oil, biological diesel oil and gas by adopting a separation and fractionation method. A stabilizer or stripper is generally provided before the fractionation column as needed, and functions to remove gas and a small amount of light components from the second cold high-fraction oil so as to ensure the separation effect of the fractionation column.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (8)
1. An animal and vegetable oil processing device which is characterized in that: the device comprises a raw material dehydration device, an up-flow reaction device, a hot high-pressure separation device, a first cold high-pressure separation device, a first product separation device, a heavy oil filtering and washing device, a supplementary refining reaction device, a second cold high-pressure separation device and a second product separation device;
the inlet of the raw material dehydration device is connected with a raw material oil conveying pipeline, the outlet of the raw material dehydration device comprises a dehydrated raw material oil outlet, and the dehydrated raw material oil outlet is connected with the inlet of the upflow reaction device;
the outlet of the upflow reaction device comprises a first product outlet, and the first product outlet is connected with the inlet of the thermal high-pressure separation device;
the outlet of the hot high-pressure separation device comprises a hot high-pressure gas outlet and a hot high-pressure oil outlet, and the hot high-pressure gas outlet is connected with the inlet of the first cold high-pressure separation device;
the outlet of the first cold high-pressure separation device comprises a first cold high-pressure oil separation outlet, and the inlet of the first product separation device is respectively connected with the hot high-pressure oil separation outlet and the first cold high-pressure oil separation outlet;
the outlet of the first product separation device comprises a heavy fraction outlet and a light fraction outlet, and the heavy fraction outlet is connected with the inlet of the heavy oil filtering and washing device;
the outlet of the heavy oil filtering and washing device comprises a clean heavy fraction outlet, and the inlet of the complementary refining reaction device is respectively connected with the light fraction outlet and the clean heavy fraction outlet;
the outlet of the complementary refining reaction device comprises a second product outlet, and the second product outlet is connected with the inlet of the second cold high-pressure separation device;
the outlet of the second cold high-pressure separation device comprises a second cold high-pressure oil separation outlet, and the second cold high-pressure oil separation outlet is connected with the inlet of the second product separation device;
the outlet of the second product separation device comprises a biodiesel outlet and a biological light oil outlet.
2. An animal and vegetable fat processing device according to claim 1, wherein: the outlet of the first cold high-pressure separation device further comprises a first cold high-pressure gas-separating outlet, and a first hydrogen circulating pipeline is connected between the first cold high-pressure gas-separating outlet and the inlet of the upflow reaction device.
3. An animal and vegetable fat processing device according to claim 2, wherein: the first hydrogen circulation pipeline is connected with a first new hydrogen conveying pipeline.
4. An animal and vegetable fat processing device according to claim 1, wherein: and a heavy oil circulation pipeline is connected between the heavy fraction outlet and the inlet of the heavy oil filtering and washing device, and the outlet of the heavy oil circulation pipeline is connected with the inlet of the upflow reaction device.
5. An animal and vegetable fat processing device according to claim 1, wherein: the outlet of the second cold high-pressure separation device further comprises a second cold high-pressure gas-separating outlet, and a second hydrogen circulating pipeline is connected between the second cold high-pressure gas-separating outlet and the inlet of the supplementary refining reaction device.
6. The animal and vegetable fat processing device according to claim 5, wherein: the second hydrogen circulation pipeline is connected with a second new hydrogen conveying pipeline.
7. An animal and vegetable fat processing device according to claim 1, wherein: the outlet of the raw material dehydration device further comprises a first water outlet and an impurity outlet, the outlet of the first cold high-pressure separation device further comprises a first cold high-water-content outlet, the outlet of the heavy oil filtering and washing device further comprises a second water outlet and an impurity outlet, and the outlet of the second cold high-pressure separation device further comprises a second cold high-water-content outlet.
8. An animal and vegetable fat processing device according to claim 1, wherein: the outlet of the first product separation device further comprises a first further product outlet, and the outlet of the second product separation device further comprises a second further product outlet.
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| CN202321824792.5U CN220520435U (en) | 2023-07-12 | 2023-07-12 | Animal and plant grease processingequipment |
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