TWM594606U - Apparatus for generating diesel fuel from petroleum-based waste oil - Google Patents

Abstract

An apparatus includes an input section, a reactor, a hydrocarbon vapour distillation column, a hydrocarbon side stripper and a filter system. The input section is used for dehydrating waste oil and has a heating system. The reactor receives the waste oil. Heating burners obtaining a hydrocarbon vapour from thermal pyrolysis of the dehydrated waste oil. The hydrocarbon vapour distillation column condenses and distils one or more hydrocarbon fractions. The hydrocarbon side stripper provides separation of the diesel and naphtha fuel streams. The filter system filters the liquid hydrocarbon in the diesel boiling point range. The reactor includes a plurality of sensors, a plurality of control devices and a computer control system. The control system is programmed with one or more protocols for controlling the fuel consumption, fuel to air ratio and blower speed in response to one or more of the values exceeding the respective predetermined range in order to return the value to a position within the range.

Description

Used to produce diesel fuel from petroleum-based waste oil Device

The creation of the new model generally relates to the field of refining or reprocessing waste products using petroleum as raw materials, and particularly relates to a device for processing diesel fuel in waste oil in a micro-processing facility.

The applicant's PCT application WO2014/153652 published on October 2, 2014 discloses the details of the system for refining petroleum-based products. The novel creation has been improved and optimized on the basis of the system shown in the application, where relevant details that can be cited in the above application can be omitted in the novel creation.

The arrangement described in the above application has been improved through many major improvements and modifications as follows.

According to an improved first aspect of this document, there is provided an apparatus for producing diesel fuel from waste oil using petroleum as a raw material, the apparatus including: an input portion, Used for dehydrating waste oil to remove free and emulsified water; a reactor that receives waste oil from the input section, the input section has a heating system, the heating system includes a plurality of heating burners for passing through A blower that has dehydrated waste oil to thermally crack to obtain hydrocarbon vapors, and a reactor stack; a hydrocarbon vapor distillation tower for receiving hydrocarbon vapors from the reactor, and condensing and distilling one or more hydrocarbon fractions, the one or Various hydrocarbon fractions include liquid hydrocarbons within the boiling point range of diesel and include non-condensable gases; a hydrocarbon side stripping tower above the hydrocarbon vapor distillation tower to further separate diesel and naphtha fuel streams; and a filtration system, which Clay absorbent materials are used to filter liquid hydrocarbons in the boiling range of diesel fuel from a hydrocarbon vapor distillation tower; the filtration system includes a regenerative heating system, wherein the regenerative heating system heats the clay absorbent material to discharge the extracted pollutants. The reactor includes: a sensor to detect the flow of materials into and out of the reactor; a sensor to detect the liquid level in the reactor; a sensor to detect the temperature in the reactor, reactor burner and reactor stack; a sensor , To detect the pressure in the reactor; a control device to control the fuel consumption of the burner; a control device to control the fuel-air ratio at the burner; a control device to control the speed of the blower; a control device , For controlling the flow of liquid to the reactor and the liquid level in the reactor; and a computer control system for generating a range of predetermined predetermined acceptable values for each of flow, liquid level, temperature, and pressure; The computer control system is programmed with one or more protocols for controlling fuel consumption, fuel-air ratio, and blower speed when one or more values exceed their respective predetermined ranges in order to return the value to a position within that range.

According to another aspect of the improvement of this article, there is provided a A device for producing diesel in waste oil as raw material, where diesel contains reduced sulfur content, the device includes: an input section for dehydrating the waste oil to remove free and emulsified water; a reactor that receives input from the input Part of the waste oil, the input part has a plurality of heating burners for obtaining hydrocarbon vapor by thermal cracking of the dehydrated waste oil; a hydrocarbon vapor distillation tower for receiving hydrocarbon vapor from the reactor and condensing and Distilling one or more hydrocarbon fractions including liquid hydrocarbons within the boiling point range of diesel; a hydrocarbon side stripping tower located above the hydrocarbon vapor distillation tower to further separate diesel and naphtha fuel streams; a filter A system that uses clay absorbing material to filter liquid hydrocarbons in the diesel boiling range from the hydrocarbon vapor distillation tower to extract pollutants; the filtering system includes a regenerative heating system in which the clay absorbing material is heated to discharge the extracted pollutants; and An incinerator with an incineration temperature of at least 660 degrees Celsius; the gas including the sulfur-containing gas from the regenerative heating system is transferred to the incinerator; the gas including the sulfur-containing gas from the reactor is transferred to the incinerator ; The gas including the sulfur-containing gas from the hydrocarbon vapor distillation tower is transferred to the incinerator.

According to another aspect of the improvement herein, there is provided an apparatus for producing diesel oil from waste oil using petroleum as a raw material, the apparatus includes: an input portion for dehydrating the waste oil to remove free and emulsified Water; the input section includes a first heater with a plurality of heating burners for heating the waste oil; a reactor that receives waste oil from the input section, the input section has a second Heater, the second heater has a plurality of heating burners for obtaining hydrocarbon vapor by thermal cracking of the dehydrated waste oil; a hydrocarbon vapor distillation tower is used for The reactor receives hydrocarbon vapors and condenses and distills one or more hydrocarbon fractions, which include liquid hydrocarbons within the boiling point range of diesel, and includes non-condensable gases; a hydrocarbon side stripping tower, located in the hydrocarbon vapor distillation Above the tower to further separate the diesel and naphtha fuel streams; a filtration system that uses clay absorbent materials to filter liquid hydrocarbons within the boiling range of diesel from the hydrocarbon vapor distillation tower to sell the liquid hydrocarbons as diesel; the filtration system It includes a regenerative heating system, which includes a third heater in which the clay absorbent material is heated to discharge the extracted pollutants; and an incinerator for incineration of the remaining hydrocarbons and Pollutants; wherein at least the first and second heaters and the incinerator are at least partially combusted using non-condensable gas from a hydrocarbon vapor distillation column.

Preferably, the range defined above is as follows: the allowable flow rate range into the reactor is 0-2,750 kg/hr, and it depends on the level of the liquid level in the reactor; the allowable liquid level range in the reactor is 20% to 80% Control the temperature of the liquid in the reactor at the maximum temperature of 450 degrees Celsius; control the pressure in the reactor between positive 75kpa and negative 48kpa; the fuel-air ratio of the burner reaches 1.5:1.

Preferably, the input section has a first heater, the reactor has a second heater, and the regenerative heating system has a third heater, wherein at least the first and second heaters and the incinerator are at least partially unusable The condensed gas burns.

Preferably, the hydrocarbon vapor distillation column is arranged to condense and distill one or more hydrocarbon fractions, the one or more hydrocarbon fractions comprising naphtha, and at least partially using naphtha to burn the first and second heaters, and a storage Storage and sale of at least one Some naphtha.

Preferably, at least the burners of the first and second incinerator heaters are dual liquid/gas burners, so that when non-condensable gases are not available, the liquid can be selected.

Preferably, the incinerator is operated at a temperature above 660°C to ensure that all sulfur compounds are incinerated.

Preferably, the input part includes a filter for extracting particles, and wherein the first heater applies heat to the waste oil before the filter to reduce the viscosity of the waste oil.

Preferably, the input section includes a settling tank for extraction by settling denser particles.

Preferably, the hydrocarbon vapor distillation column is configured to condense and distill one or more hydrocarbon fractions, the one or more hydrocarbon fractions including naphtha, and the hydrocarbon side stripping column is configured to further separate diesel and naphtha fuel streams.

2: Waste oil feed pump

4: Process flow

6: feed filter

5, 8, 18, 22, 32, 36, 40, 50, 80, 761, 762, 763: flow

9: heater

10: Dehydrator unit

14: Dehydrated waste oil flow

16: Reactor feed pump

20: Preheater

24: total reactor feed flow

25: Vertical cylindrical reactor

26: Burning furnace shell

27: Heat exchange coil

28: effluent steam flow

30: Liquid separation container

34: feed cooler of fractionation tower

38: Fractionating tower

39: Reboiler

42: Side stripper

44: Diesel fuel flow

46: Feed pump

48: filter unit

52: air flow

54: Exhaust gas flow

60: overhead distillation stream

61: condenser

62: receiver drum

64: liquid logistics at the top of the tower

66: tower top pump

68: Return logistics

70: Incinerator

70A: Naphtha flow

71: Burner

72: Supply source

73, 252, 514: Blower

74: Vacuum pump

75: Steam flow from the top receiver

76: Non-condensing gas flow

82: Fractionating tower bottom pump

100: vertical cylindrical wall

101: top

102: bottom

103: Tube

104: main opening

105: Fill line

106: inner wall

107: board

108: support

112, 114, 115, 116, 117, 118: sensors

119, 120, 121, 122: control device

200: Operator-assisted computer control system

251: Burner device

253: Fuel supply source

271: Reactor stack

501: memory

511: Heater

512: burner

513: Supply source

611: Settling tank

701: storage

801: heat exchanger

D1: Vertical cylindrical reactor

D2: Furnace shell

D4: Thermal deflector

N1: Inlet supply source

When considering the detailed description below, the novel creation will be better understood, and the purpose of the novel creation will become apparent. This description refers to the accompanying drawings, in which: FIG. 1 shows an illustrative system and process flow for treating diesel in waste oil according to a preferred embodiment.

Fig. 2 shows the reactor in the arrangement shown in Fig. 1 only on an enlarged scale.

In Figure 1, a waste oil receiving facility is located at a waste oil treatment plant to provide raw materials to the system.

FIG. 1 shows an explanatory schematic diagram of a system and method for processing diesel in waste oil according to a preferred embodiment. As shown in the illustrative schematic diagram, the system generally includes four subsystems, including: (i) a dehydration subsystem; (ii) a vertical cylindrical reactor subsystem; (iii) a distillation subsystem; and ( iv) A filtering subsystem.

In the dehydration subsystem, the waste oil feed delivery pump 2 continuously feeds the waste oil feedstock through the feed filter 6 to the process stream 4, which may contain about 0% to about 50% free water and/or emulsification Water to remove any large particles that may hinder the later stages of the process. As an illustrative example, the filter size of the feed filter 6 may be about 20 microns to 100 microns.

Stream 8 is preheated in heater 9 and then enters dehydrator unit 10, where free and emulsified water in the waste oil is removed by the dehydration process and the raw waste oil is heated to a higher temperature.

The dehydrated waste oil stream 14 is pumped out of the dehydrator unit 10 via the reactor feed pump 16 via stream 18 and into the preheater 20 in the vertical cylindrical reactor subsystem. The preheater 20 is used to increase the temperature of the stream 22 to the range of about 125°C to about 350°C to prepare the thermal cracking (thermal) in the vertical cylindrical reactor 25 for the vertical cylindrical reactor subsystem Cracked oil. In one embodiment, the added heat in the preheater 20 is provided by cooling the vertical cylindrical reactor effluent vapor stream 28 in a shell and tube heat exchanger. The use of heat generated by the effluent vapor stream is used to improve the overall thermal efficiency To improve the economic feasibility of the process.

The thermal reactor is a burning reactor consisting of a vertical cylindrical reactor 25 and a combustion furnace shell 26. The vertical cylindrical reactor is designed to initiate thermal cracking in waste oil that has been dehydrated. As shown, the preheated dehydrated waste oil feed stream 22 is combined with the heavy hydrocarbon recycle stream 80 to form the total reactor feed stream 24, which is continuously fed to the vertical cylinder Shaped reactor 25. The combustion furnace shell 26 provides the heat required to direct the thermal cracking of the total reactor feed stream 24.

Combustion furnace shell 26 is a combustion heater with a bottom-mounted burner that is supplied with fuel from naphtha range light liquid processing fuel and can be controlled manually or together with the fuel supply system Controlled by burner management system.

The waste heat in the flue gas of the furnace shell 26 is recovered to one or more fluids passing through the heat exchange coil 27 in the convection section. After undergoing thermal cracking, the cracked hydrocarbons leave the vertical cylindrical reactor 25 as steam through the reactor effluent vapor stream 28 and pass through the liquid separation vessel 30 to remove any inadvertently contained in the vertical cylindrical reactor effluent liquid. The cooled reactor effluent stream 32 leaves the preheater 20. The degree of cooling of stream 32 is controlled by the heat transfer to stream 22. The partially cooled stream 32 flows into the fractionation column feed cooler 34, where the partially cooled stream is further cooled to a temperature of about 200°C to about 300°C and partially condensed. It should be understood that the choice of the operating temperature of the stream 36 at the outlet of the fractionation column feed cooler 34 depends on the required heat balance and operating conditions used in the fractionation column 38. The partially condensed reactor effluent stream 36 enters the fractionation column 38 as it leaves the fractionation column feed cooler 34.

In a distillation subsystem that includes a fractionation tower and related auxiliary equipment, the reactor effluent stream 36 is distilled in the fractionation tower 38 into multiple different hydrocarbon fractions. Four different hydrocarbon fractions are produced, but it should be understood that the number of hydrocarbon fractions can be increased or decreased as needed. Within the fractionation tower 38, light hydrocarbon compounds that do not meet the required diesel fractionation range travel upward and exit the fractionation tower 38 through the overhead stream 60. The overhead stream 60 is cooled in the top condenser 61 of the fractionation column and partially condensed. The resulting two-phase mixture is separated in an overhead receiver drum 62. A portion of the resulting overhead liquid stream 64 is transferred back to the fractionation column 38 by the overhead pump 66 as reflux. The reflux stream 68 returning to the fractionation column 38 is used to regulate the amount of hydrocarbon components in the light boiling range of the diesel fraction, where the diesel fraction is collected into the diesel side extraction stream 40. The overhead receiver vapor stream 75 is extracted from the receiver drum 62 by a vacuum pump 74 that provides the resulting non-condensable gas stream 76. The heavy hydrocarbons at the bottom of the fractionation column 38 are transported by the fractionation column bottom pump 82 to the heat exchanger 801 via stream 80. The heavy hydrocarbons are mixed with the diesel fuel stream 44 through the heat exchanger 801 and passed through the filter unit 48, and are supplied to the storage 501 The sold diesel is put into the storage together.

Heat is added to the bottom of fractionation column 38 through reboiler 39 to produce an upward steam flow in the column to ensure that diesel range components are not extracted by heavier hydrocarbons in stream 80.

The liquid hydrocarbon side draw 40 in the intermediate draw point on the fractionation column 38 is removed. Stream 40 flows to the top of the side stripper 42 for final separation, by which compounds that are lighter than the lower end of the diesel distillation point range are removed. The diesel fuel stream 44 at the bottom of the side stripping tower constitutes the raw diesel fuel.

In the filtration subsystem, the filter feed pump 46 draws the diesel fuel flow 44 The filtering unit 48 removes particulates, pollutants, colored bodies, and odors contained in the diesel by contacting the raw diesel with the adsorbent clay material. In this embodiment, the regeneration filter unit is used to filter the raw diesel fuel into commercial-grade diesel fuel.

After the adsorption capacity of the clay bed in a particular group is exhausted, the flow of diesel fuel is transferred to another group of filtration vessels for processing, so that the entire filtration process is continuous. The exhausted remaining liquid diesel fuel is reprocessed to prepare an exhausted filter container group. Regeneration requires continuous introduction of the heated ambient air stream 52 into the filter vessel until the combustible residual diesel and adsorbed pollutants on the clay particles begin to oxidize. At this point, the self-sustaining "combustion" phase of regeneration begins, and the combustion front slowly moves through the clay bed, oxidizing residual diesel and adsorbed pollutants. The gas-phase products of the combustion process are exhausted and/or oxidized from the clay medium/filter vessel through the exhaust stream 54.

Further operational details of the above system are described in the above-mentioned published PCT application of the applicant.

Therefore, the arrangement herein provides a device for generating diesel fuel from petroleum-derived waste oil. This includes the input section defined by Part A for dehydrating waste oil to remove free and emulsified water, which feeds the waste oil to the reactor in Part B.

The vertical cylindrical reactor 25 receives waste oil from the input section, and the vertical cylindrical reactor 25 has a heating system including a plurality of burner devices 251 and a blower 252, the combination of the blower 252 from the fuel supply Fuel from source 253 to provide the required fuel/air mixture. Reactor including a reactor stack 271, used to remove excess heat, the reactor stack 271 contains a heat exchange coil 27.

As mentioned above, the vertical cylindrical reactor 25 is used to obtain hydrocarbon vapors by thermal cracking of dehydrated waste oil in the reactor, where the steam is carried along a pipeline carrying an effluent vapor stream 28 to a hydrocarbon vapor distillation column. In the column, the vapor serves to condense and distill one or more hydrocarbon fractions, which include liquid hydrocarbons within the boiling point range of diesel fuel, and non-condensable gases.

The column includes a hydrocarbon side stripper 42 to further separate the hydrocarbon into a diesel fuel stream 44 and a naphtha stream 70A, where the naphtha is stored in the reservoir 701.

The diesel fuel stream 44 is fed to a filtration system 48 for filtering liquid hydrocarbons in the diesel boiling point range with a clay absorbent material. The filter includes at least two filter beds, which are alternately used and alternately regenerated using heated gas. The filter unit 48 contains an electronic igniter system (not shown) that generates its own heat and does not require a burner or fuel source.

The input part subsystem includes a feed filter 6 for extracting particulates, and a first heater 511 is provided in the stream 5, which is heated by passing the heat medium through the stream 5 in a heat exchanger A heater 511 in which the heat medium has been heated by a fuel supply source 513 and a burner 512 provided by a blower 514. The heat exchanger applies heat to the waste oil in the supply pump 2 before feeding the filter 6 to reduce the viscosity of the waste oil.

It has been found that reducing viscosity is an indispensable condition for the waste oil to pass through the filter, where the feed filter 6 has sufficient filtering capacity to extract contaminants or particulate matter in the waste oil. It has been found that typical materials in the materials expected to be used in the system The amount of type particles is 0.5%, and a filter is required which has a preferred ability to reduce the particle size of concern to 0.01 microns, where a flow rate of 2,500 kg/hr requires the material temperature to be heated to 100 degrees Celsius. This heating effect can be obtained in one or two steps, where the previous heater or heat exchanger is also used to increase the temperature of the waste oil. In other words, in the previous step, the temperature has increased once.

The input section on stream 5 includes a settling tank 611 after the feed filter 6 to extract by settling denser particles.

The vertical cylindrical reactor 25 is shown most clearly in FIG. 2, and the vertical cylindrical reactor 25 is composed of a vertical cylindrical reactor D1 and a furnace shell D2, the vertical cylindrical reactor D1 is formed with a dome A vertical cylindrical wall 100 at the head of the top 101 and the bottom 102, the distance between the vertical cylindrical reactor D1 and the furnace shell D2 is 0.3-0.5m, preferably 0.4m. The round top is elliptical or hemispherical.

Waste oil is fed into the vertical cylindrical reactor D1 through the inlet supply source N1. The inlet supply source N1 forms a tube 103 which extends into the reactor through a main opening 104 which forms an inlet connection on one side of the vertical cylindrical reactor and passes through the main opening 104 turning downward The bottom discharge is used for continuously supplying the waste oil using petroleum as raw material in liquid form, and filling the waste oil using petroleum as raw material into a part of the vertical cylindrical reactor until the filling line 105. From the filling line 105 down, the entire inner surface of the reactor is liquid.

The vertical cylindrical reactor D1 has an inner wall 106 that is exposed to the waste oil feedstock without an internal rotating device to scrape off the material on the wall or to promote mixing in the vertical cylindrical reactor. Therefore, the liquid at the bottom will not overflow or pass through Mix with any mechanical assistance. As shown in the figure, the inlet supply source N1 continuously supplies waste oil into the vertical cylindrical reactor D1. The vertical cylindrical reactor has no bottom discharge, so the only discharge is through the steam outlet.

Heat is applied to the vertical cylindrical reactor D1 by the burner device 251 located at the bottom of the inner wall 106, and the waste oil is thermally cracked. The burner device 251 heats the vertical cylindrical reactor by dissipating heat around the thermal deflector D4. The thermal deflector D4 is located in the range of 1.1 m to 1.8 m from the bottom of the furnace, but is preferably 1.4 m from the bottom. The thermal deflector D4 is installed on the vertical cylindrical reactor so that the heat is evenly dispersed in the furnace and around the vertical cylindrical reactor, and the heat intensity to the bottom is controlled. The thermal deflector includes a plate 107 located below the vertical cylindrical reactor. The heating system is located on a bottom wall of the housing, and the plate 107 is installed above the support 108, which is attached to the bottom head of the vertical cylindrical reactor.

The vertical cylindrical reactor 25 also includes: a sensor 112 that enters the reactor on the feed line to detect the flow of the stream entering the reactor; and a sensor that detects the flow of materials outside the reactor, where it leaves the reactor When the steam of the reactor cools and forms three product streams (diesel fuel stream 44, naphtha stream 70A, and non-condensable gas stream 76), the flow rate of the material outside the reactor is obtained by measuring the flow rate downstream of the reactor.

A sensor 114 to detect the liquid level in the reactor; a sensor 115 to detect the temperature in the reactor; a sensor 116 to detect the temperature in the combustion chamber around the reactor; A sensor 117 to detect the temperature in the reactor stack; a sensor 118 to detect the pressure in the reactor; A control device 119 for controlling the fuel consumption at the burner device 251; A control device 120 for controlling the fuel-air ratio at the burner device 251; A control device 121 for controlling the speed of the blower; A control device 122 for controlling the liquid flow to the reactor and the liquid level in the reactor; And an operator-assisted computer control system 200, which is set to generate a respective predetermined acceptable range of values for each of flow, liquid level, temperature, and pressure; The operator-assisted computer control system 200 is programmed with one or more protocols for controlling fuel consumption, fuel-air ratio, and blower speed when one or more values exceed their respective predetermined ranges in order to return the value to the range s position. For the convenience of explanation, the control path for receiving the signal from the above-mentioned sensor and transmitting the control signal to the control device is not shown.

An incinerator 70 is provided, which is heated by a burner 71 supplied with fuel from a supply source 72 and air from a blower 73. Water vapor generated during dehydration of waste oil, excess non-condensable gas and emissions generated during the reactivation of the regeneration device containing sulfur-containing gas are transferred to the incinerator 70 to incinerate the remaining hydrocarbons and pollutants. Burn at a temperature of at least 660°C. Included from regeneration plus The sulfur system gas of the thermal system is transferred to the incinerator 70. The gas including the sulfur gas from the distillation column at the non-condensable gas stream 76 is transferred to the incinerator 70. For ease of explanation, the transmission path is not shown.

Preferably, the range defined above is as follows: the allowable flow rate range into the reactor is 0-2,750 kg/hr, and it depends on the level of the liquid level in the reactor; the allowable liquid level range in the reactor is 20% to 80% Control the temperature of the liquid in the reactor at the maximum temperature of 450 degrees Celsius; control the pressure in the reactor between positive 75kpa and negative 48kpa; the fuel-air ratio of the burner reaches 1.5:1.

As shown in FIG. 1, the second heater 511 and the burner device 251 and the incinerator 70 use the non-condensable gas in the fractionation tower 38 to burn as fully as possible, where the non-condensable gas is taken from the non-condensable gas stream 76的流761, 762 and 763.

In the event that gas is not available, the second and third heaters may burn at stream 50 at least partially using diesel fuel from their storage 501.

As shown in FIG. 1, the hydrocarbon vapor distillation column is configured to condense and distill one or more hydrocarbon fractions, the one or more hydrocarbon fractions including naphtha, naphtha may be stored in the reservoir 701, and at least partially use naphtha Oil to burn the second and third heaters. Sell at least some naphtha from the reservoir. That is, the hydrocarbon vapor distillation column is configured to condense and distill one or more hydrocarbon fractions including naphtha, and the hydrocarbon side stripping column is configured to further separate the diesel and naphtha fuel streams.

To allow the use of gas and diesel fuel as needed, at least the burners of the first and second heaters and incinerators are dual liquid/gas burners, whereby the liquid can be selected when non-condensable gases are not available.

2: Waste oil feed pump

4: Process flow

6: feed filter

5, 8, 18, 22, 32, 36, 40, 50, 80, 761, 762, 763: flow

9: heater

10: Dehydrator unit

14: Dehydrated waste oil flow

16: Reactor feed pump

20: Preheater

24: total reactor feed flow

25: Vertical cylindrical reactor

26: Burning furnace shell

27: Heat exchange coil

28: effluent steam flow

30: Liquid separation container

34: feed cooler of fractionation tower

38: Fractionating tower

39: Reboiler

42: Side stripper

44: Diesel fuel flow

46: Feed pump

48: filter unit

52: air flow

54: Exhaust gas flow

60: overhead distillation stream

61: condenser

62: receiver drum

64: liquid logistics at the top of the tower

66: tower top pump

68: Return logistics

70: Incinerator

70A: Naphtha flow

71: Burner

72: Supply source

73, 252, 514: Blower

74: Vacuum pump

75: Steam flow from the top receiver

76: Non-condensing gas flow

82: Fractionating tower bottom pump

200: Operator-assisted computer control system

251: Burner device

253: Fuel supply source

501: memory

511: Heater

512: burner

513: Supply source

611: Settling tank

701: storage

801: heat exchanger

Claims (10)

A device for producing diesel fuel from waste oil using petroleum as raw material, the device includes: an input part for dehydrating the waste oil to remove free and emulsified water; a reactor, receiving from the Waste oil at the input section, which has a heating system including a plurality of heating burners, a blower for obtaining hydrocarbon vapors by thermal cracking of the dehydrated waste oil, and a reactor stack; A hydrocarbon vapor distillation tower for receiving the hydrocarbon vapor from the reactor, and condensing and distilling one or more hydrocarbon fractions, the one or more hydrocarbon fractions including liquid hydrocarbons in the boiling range of diesel oil, and including non-condensable gases; one A hydrocarbon side stripping tower located above the hydrocarbon vapor distillation tower to further separate the diesel and naphtha fuel streams; and a filtration system that uses a clay absorbent material to filter the liquid in the boiling point range of the diesel fuel from the hydrocarbon vapor distillation tower Hydrocarbon; the filtration system includes a regenerative heating system, wherein the clay absorption material is heated to discharge the extracted contaminants; wherein the reactor includes; a sensor that detects the flow of materials into and out of the reactor; a sensor that detects the The liquid level in the reactor; a sensor to detect the temperature in the reactor, the heating burner and the reactor stack; A sensor to detect the pressure in the reactor; a control device to control the fuel consumption of the heating burner; a control device to control the fuel-air ratio at the heating burner; a control device to control The speed of the blower; a control device for controlling the liquid flow to the reactor and the liquid level in the reactor; and a computer control system for generating each of the flow rate, liquid level, temperature and pressure Each predetermined range of acceptable values; the computer control system is programmed with one or more protocols for controlling the fuel consumption, the fuel-air ratio and the blower speed when one or more values exceed the respective predetermined ranges, To return the value to a position within that range. The device as described in item 1 of the patent application scope, wherein the multiple ranges are as follows: the allowable flow rate range into the reactor is 0-4450 kg/hr, and it depends on the level of the liquid level in the reactor; the reaction The allowable liquid level range in the reactor is 20% to 80%; the temperature of the liquid in the reactor is controlled at a maximum temperature of 450 degrees Celsius; the pressure in the reactor is controlled between positive 35kpa and negative 48kpa; the heating is burned The fuel-air ratio of the device reaches 1.5:1. The device as described in item 1 of the patent application, wherein the input section has a first heater, the reactor has a second heater, and the regenerative heating system There is a third heater, wherein at least the first and second heaters burn at least partially using non-condensable gases. The device as described in item 3 of the patent application scope, wherein the hydrocarbon vapor distillation column is configured to condense and distill one or more hydrocarbon fractions, the one or more hydrocarbon fractions including naphtha. The device according to item 4 of the patent application scope, wherein at least the first and second heaters use at least partially the naphtha for combustion. The device as described in item 4 of the patent application scope, wherein a reservoir stores and sells at least some of the naphtha. The device as described in item 3 of the patent application, wherein at least the burners of the first and second heaters and an incinerator are dual liquid/gas burners, enabling selection when the non-condensable gas is not available liquid. The device as described in item 7 of the patent application scope, wherein the incinerator is operated at a temperature higher than 660°C to ensure the incineration of all sulfur compounds. The device according to item 3 of the patent application scope, wherein the input part includes a filter for extracting ash particles, and wherein the first heater applies heat to the waste oil to reduce the waste oil before the filter Of viscosity. The device as described in item 1 of the scope of the patent application, wherein the input section includes a settling tank for extraction by settling denser particles.

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