TWI538749B - High resolution modular heating for soil evaporative desorption - Google Patents

Description

High-resolution modular heating method and system for soil evaporation and adsorption [claim priority]

This patent application is a continuation-in-part of the following application and claims the following priority:

(1) U.S. Provisional Patent Application No. 62/048794, filed on Sep. 10, 2014, entitled "Feedback loop control for soil evaporative desorption", which is incorporated herein by reference.

(2) U.S. Utility Model Patent Application No. 14/264,019, filed on Apr. 28, 2014, entitled "Soil box for evaporative desorption process" incorporated herein by reference.

(3) U.S. Provisional Patent Application No. 61/878,623, filed on Sep. 17, 2013, entitled "Cyclic thermal desorption processes," incorporated herein by reference.

(4) U.S. Utility Model Patent Application No. 13/419195, filed on March 3, 2012, entitled "Evaporative desorption high concentration soil contaminate removal and contaminate reclamation apparatus and process", which is hereby incorporated by reference. Incorporate.

This case relates to the recycling and / or remediation of contaminated soil, especially the method and system for high-resolution modular heating of soil evaporation and adsorption.

The use of petroleum hydrocarbons as a fuel source is ubiquitous in society. Therefore, a large amount of petroleum hydrocarbon products are processed and stored. A related risk of handling and storing petroleum hydrocarbons may overflow during processing or may leak during storage. Regulations have been established at the local, state, and federal levels because of the negative environmental impacts associated with spillage and leakage of petroleum hydrocarbons. These regulations focus on preventing the release of petroleum hydrocarbons into the environment. These regulations are also prepared to require responsible authorities to rectify the release of petroleum hydrocarbons to the environment.

In the field of remediation of petroleum hydrocarbons from soil, there are two basic methods: applying treatment techniques to the soil in situ (in situ), or applying treatment techniques to the excavated soil (ex situ). Each method has its own advantages and disadvantages, and the method is selected based on the specific location environment in which each petroleum hydrocarbon is released.

In situ thermal desorption techniques involve techniques that simultaneously apply heat and vacuum to the subterranean soil to evaporate volatile contamination in the soil. The evaporative treatment of the pollution comprises evaporation into a subterranean gas stream, distillation of the gas stream into water vapor, boiling, oxidation, and/or pyrolysis. Evaporated water, contamination, and organic compounds are drawn to the heat flow into the vacuum source by a vacuum in the countercurrent direction.

The ex situ thermal desorption technique includes a technique involving mechanical agitation of the soil during the heat treatment, which involves the treatment of continuous mechanical agitation operations in which the soil is continuously introduced. To process, and mechanically move through the processing device until the process is complete, and then continuously discharged to the container for disposal or reuse.

Alternatively, the soil can be treated with a static configuration in which a given amount of soil is introduced into the processing chamber. The configuration of the soil consists of a heap configuration and a container configuration.

Almost all prior art processes use the combustion of fossil fuels as a heat source. This has undesirable consequences: the formation of incompletely combusted products, the oxidation of nitrogen, and other greenhouse gases that become by-products. If the combustion treatment is not strictly controlled, it is also possible to burn unburned hydrocarbons to the treated exhaust gas.

The ex situ static processing program improves manpower, time and energy efficiency, and is environmentally friendly.

This case is a method and system for high-resolution modular heating method for soil evaporation and adsorption.

In one or more embodiments, the present invention discloses a soil evaporation desorption treatment. The process consists of placing the contaminated soil batch in a soil tank, which is then installed in the processing chamber. The processing chamber and/or soil tank may be insulated and/or sealed to maintain pressure. One or more injection ports can direct the pretreatment gas from the heat source into the soil tank, and the heat source is used to heat the pretreatment gas. The hot front from the pretreatment gas can desorb the surrounding contaminated soil. The post-treatment gas can be a product of the desorption process that exits through the process gas leaving the path.

The soil tank can be configured to receive pre-treatment gas from the injection port at different portions and at different times. The bottom portion can be configured to be connected before the top portion receives the pretreatment gas Receive pretreatment gas. Treating the bottom portion prior to treating the top portion eliminates condensation within the soil tank, thereby creating a passage for dry, heated, and/or fractured soil at the bottom portion that allows vapor contaminants from the top portion to flow therethrough. In one or more embodiments, the parameters of the aftertreatment gas exiting by the post-treatment gas exiting the path may be measured by a parametric sensor. The data output from the sensor can indicate the condition of a particular area of contaminated soil, for example, high carbon monoxide concentration data can indicate that the process is incomplete or inefficient. Further action can be taken, such as re-doing the process.

In one or more embodiments, the systems and methods of treating contaminated soil in this context include pressure and/or temperature cycling. The present invention may use a sealable processing chamber having an exhaust valve configured to allow the soil tank to alternate between a pressurized state and a pressure released state to release the aftertreatment gas. For example, hot gas or air may be supplied to the processing chamber where the exhaust valve is closed, utilizing the increased pressure to heat the contaminated soil. The vent valve can be opened with hot air still on or off to relieve pressure and hot gases from the processing chamber. The rapid release of hot gases extracts evaporated contaminants and brings volatile contaminants to the exhaust. This cycle can be repeated until the contaminated soil is cleaned.

The vent line can be coupled to an atmospheric pressure environment, and if the chamber is pressurized above atmospheric pressure, the vent line can drive the processing chamber to a lower pressure. Alternatively, the exhaust line can be coupled to a vacuum that can extract gas from the processing chamber. When the exhaust valve is closed, hot gases (which may be provided to the processing chamber) may increase the pressure in the process chamber, such as to atmospheric pressure or above atmospheric pressure. The opening of the vent valve removes hot gases from the processing chamber and reduces the pressure of the processing chamber to below atmospheric pressure. This cycle can be repeated until the contaminated soil is cleaned.

In one or more embodiments, the soil of the processing chamber can be configured to provide high flow Dynamic conductivity, which can help reduce chamber pressure, such as reducing the time it takes to bring the chamber pressure to a low pressure condition. For example, rock can be provided to the soil that provides pores within the soil to allow for faster gas flow through the soil.

In one or more embodiments, the temperature of the processing chamber can be cyclic, for example, by alternately flowing hot gases with stopping the flow of hot gases (eg, flowing room temperature gas or stopping hot gas flow). Circulating temperature treatment of contaminated soil provides pulsed soil treatment while reducing energy consumption.

110‧‧‧Processing chamber

120‧‧‧ soil tank

122‧‧‧Cover

125‧‧‧Contaminated soil

130‧‧‧Injected into the mouth

140‧‧‧Injection valve

150‧‧‧Injected into the mouth sleeve

160‧‧‧ outer wall

170‧‧‧heat source

172‧‧‧ Controller

180‧‧‧Pretreatment gas

185‧‧‧ After treatment gas

190‧‧‧ well screen

198‧‧‧ After treatment gas leaving the path

210‧‧‧ Center

220‧‧‧hot front end

230‧‧‧Top part

240‧‧‧ bottom part

310‧‧‧Exhaust valve

320‧‧‧Parameter Sensor

410‧‧‧hot front end A

420‧‧‧hot front end B

430‧‧‧hot front end C

440‧‧‧terminal distance

510‧‧‧Condensation

610‧‧‧Injection into the mouthpiece extension

620‧‧‧Injection of the mouthpiece retracted position

710‧‧‧scatter sphere

720‧‧‧ catheter

820‧‧‧Injection port adapter

910‧‧‧ well screen opening

920‧‧ ‧ spring

930‧‧‧Pedestal support

1010‧‧‧ Well shielding sleeve

1020‧‧‧Grid

1110‧‧‧Distance A

1120‧‧‧D distance B

1130‧‧‧ reference line

1210‧‧‧ Pressure Sensor

1310‧‧‧ Rock

1410, 1420, 1430, 1440, 1450‧‧‧ homework

1510, 1520, 1530, 1540‧‧ ‧ homework

1610, 1620, 1630, 1640‧‧‧ homework

1710, 1720, 1730, 1740, 1750‧‧ ‧ homework

1810, 1820, 1830, 1840, 1850 ‧ ‧ homework

The invention is illustrated by the following specific examples, but the spirit of the present disclosure is not limited to the accompanying drawings, wherein like reference numerals indicate like elements: FIG. 1 is a configuration of a preferred embodiment of the present invention. a soil tank for receiving pretreatment gas; Figure 2 is a modular heating arrangement of the soil tank of Figure 1; and Figure 3 is a modular heating arrangement of Figure 2 for detection and/or measurement The parameters of the processing gas; Fig. 4 is a schematic diagram of changing the thermal front end of the center of the modular heating arrangement of Fig. 2; Fig. 5 is the problem of condensation in the soil tank to be solved next in the preferred embodiment of the present invention; Figure 6 is a view showing the operation of the retractable sleeve of the preferred embodiment of the present invention, which is connected to the soil tank of the first embodiment; Figure 7 is an alternative modularization of the soil tank of the preferred embodiment of the present invention. a heating arrangement comprising a spherical structure to dissipate heat; FIG. 8 is another alternative modular heating arrangement of the soil tank of the preferred embodiment of the present invention, the module The heating arrangement comprises an injection port connected to the bottom of the soil tank; Figures 9A and 9B show the installation of the soil tank of the preferred embodiment of the present invention, and another alternative modular heating arrangement with the soil tank; 10A and 10B Figure 4 is an alternative configuration of the soil tank of the preferred embodiment of the present invention; Figure 11 is yet another alternative modular heating arrangement of the soil tank containing only a single modular heater of the preferred embodiment; 12B is a system and process for circulating thermal desorption in the preferred embodiment of the present invention; FIG. 13 is a schematic diagram of a circulating thermal desorption soil configuration according to a preferred embodiment of the present invention; and FIG. 14 is a distribution pre-preparation of the preferred embodiment of the present invention. A flow chart of a method for treating a portion of a gas entering a soil tank; FIG. 15 is a flow chart of a method for injecting a pretreatment gas into a soil tank according to a preferred embodiment of the present invention; and FIG. 16 is a view of a preferred embodiment of the present invention and/or Or a flow chart of a method for measuring a parameter of a post-treatment gas; FIG. 17 is a flow chart showing a method for increasing the pressure in the soil tank before exhausting the post-treatment gas using the exhaust valve according to a preferred embodiment of the present invention; Better implementation of this case A flow chart of a method of maintaining pressure in a soil tank prior to exhausting the post-treatment gas using an exhaust valve.

The present invention discloses a high-resolution modular heating method for soil evaporation to adsorption. Method, system, and/or device. Although the present invention has been described with reference to the specific embodiments thereof, it is obvious that various modifications and changes may be made to the embodiments without departing from the broader spirit and scope of the various embodiments. In addition, the components shown in the drawings, their connections, couplings and relationships, and their functions are merely exemplary representations, and are not limited to the embodiments described.

Figure 1 is a soil tank of a preferred embodiment of the present invention configured to receive a pretreatment gas from a heat source.

Basically, FIG. 1 includes a processing chamber 110, a soil tank 120, a sealable cover member 122, a contaminated soil 125, an injection port 130, an injection port valve 140, an injection port sleeve 150, an outer wall 160, and a heat source. 170. Controller 172, pretreatment gas 180, aftertreatment gas 185, well screen 190, and aftertreatment gas exit path 198.

The soil tank 120 can be configured to hold contaminated soil 125 and can be installed within the processing chamber 110. The processing chamber 110 can be designed to allow the pretreatment gas 180 to enter to heat the contaminated soil 125. The soil tank 120 can be a compartment designed to maintain the contaminated soil 125 that is treated in the evaporation desorption process. The processing chamber 110 can be thermally insulated to maintain heat and/or seal to maintain pressure within the processing chamber 110. The soil tank 120 can also be insulated to maintain heat and/or include a sealable cover 122 that is operable to maintain pressure within the soil tank 120. The soil tank 120 includes an exhaust valve 310 of FIG. 3 that allows the soil tank 120 to alternate between a pressurized state and a pressure released state to release the aftertreatment gas from the soil tank 120. Processing chamber 110 and/or soil tank 120 functions similarly to a high pressure chamber. Contaminated soil 125 can be contaminated with low concentrations and/or high concentrations of hydrocarbons from hydrocarbon sites.

The pretreatment gas 180 can be provided directly to the well screen 190 of the soil tank 120 by injection into the cornice 130. The well screen 190 can be a cylindrical system of mesh screens and/or holes, designed The pretreatment gas 180 is allowed to enter from the injection port 130 and flow through the contaminated soil 125. The injection port port 130 can be a tubular portion or a hollow cylinder for conveying the pretreatment gas 180 from the heat source 170. Heat source 170 can be an electric heater and/or a natural gas heater for heating pretreatment gas 180 prior to injection into processing chamber 110. The heat source 170 includes a controller 172, such as a programmable logic controller (PLC), which can be used to independently control each injection port 130 (if more than one injection port 130 is used), and adjust through the injection The temperature and/or flow of the pretreatment gas 180 of the mouth 130. The injection port 130 includes an injection port valve 140 for controlling the injection of the pretreatment gas 180 into the well screen 190 of the soil tank 120. For example, the injection port valve 140 can be opened to allow the pretreatment gas 180 to flow from the heat source 170 into the soil tank 120, or the injection port valve 140 can be closed to reject the pretreatment gas 180 from the heat source 170 from flowing into the soil tank 120. The operation of injecting the mouth valve 140 can be mechanically controlled, but the injection port valve 140 can be manually adjusted and/or electronically controlled (e.g., through the controller 172).

In addition, the injection port 130 includes an injection jaw sleeve 150 that connects the injection port 130 to the outer wall 150 of the soil tank 120. The infusion mouthpiece 150 can be retracted or can be secured to the infusion port 130.

After the processing of the soil batch is complete, the after-treatment gas 185 can exit the soil tank 120 and the processing chamber 110 through the post-treatment gas exit path 198. The aftertreatment gas 185 can be further processed in a recycling system that includes condensation of condensable hydrocarbons that are condensed by the contaminated soil 125. The recycling process further includes reheating the aftertreatment gas 185 using non-condensing condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination, and the aftertreatment gas 185 will be recovered as a pretreatment gas 180 and/or heated as a pre-treatment The fresh air of the gas 180 is processed.

2 is a modular heating of the soil tank 120 of the first embodiment of the preferred embodiment of the present invention. Configuration.

Basically, FIG. 2 mainly illustrates the center 210, the hot front end 220, the top portion 230, and the bottom portion 240.

The center 210 (Epicenter) can be placed in the thermal center point of the contaminated soil 125. The injection port 130 can direct the pre-treatment gas 180 into the well screen 190, after which the pre-treatment gas 180 can be placed into the contaminated soil 125. The center 210 can be defined as a center point where the pretreatment gas 180 exits the well screen 190 and is dispersed into the contaminated soil 125. The hot front end 220 emanating from the center 210 can gradually decrease in temperature with distance, thereby reducing its utility for desorbing contaminated soil 125. The hot front end 220 can be limited to a distance of about 18 to 24 inches, depending on soil type, temperature, type of contamination, and the like. The limit of the distance of the hot front end 220 can be mechanically controlled by mechanical adjustment of the injection into the mouth valve 140, the valve of the well screen 190, and/or the output of the heat source 170. The limit of the distance of the thermal front end 220 can also be electronically controlled, such as through the controller 172.

The modular heating arrangement of the soil tank can be divided into a top portion 230 and a bottom portion 240. In one or more embodiments, the top portion 230 and the bottom portion 240 each include at least one center 210 (two or more centers 210 in total). In one or more alternative embodiments, the top portion 230 and the bottom portion 240 utilize a single center 210 that is split into two halves - representing the upper half of the top portion 230 and the lower half representing the bottom portion 240.

The bottom portion 240 can be configured to receive the pre-treatment gas 180 before the top portion 230 receives the pre-treatment gas 180, and vice versa. The top portion 230 can be configured to begin receiving the pretreatment gas 180 only after the processing on the soil batch at the bottom portion 240 is complete, and vice versa. However, the beginning of receiving the pretreatment gas 180 at the top portion 230 may also be synchronized to the beginning of receiving the pretreatment gas 180 at the bottom portion 240. In addition, the start receiving pre-processing at the top portion 230 Gas 180 may be delayed after the beginning of receiving pretreatment gas 180 at bottom portion 240, and vice versa. For example, the beginning receiving pretreatment gas 180 at the top portion 230 can be configured to delay any time interval, such as 5 minutes, 10 minutes, 20 minutes, etc., after the beginning of receiving the pretreatment gas 180 at the bottom portion 240. The same can be done in the opposite manner whereby the bottom portion 240 begins to receive the pre-treatment gas 180 can be configured to delay any time interval after the top portion 230 begins to receive the pre-treatment gas 180. The top portion 230 begins to receive the pre-treatment gas 180 and the bottom portion 240 begins to receive the pre-treatment gas 180 in a mechanical and/or electronic manner, similar to the distance limit of the thermal front end 220 described above.

In one or more embodiments, both the top portion 230 and the bottom portion 240 include two or more centers 210. The arrangement of the scattered thermal front ends 220 of the pretreatment gas 180 from each of the centers 210 may be continuous or simultaneous, or may be varied relative to a particular set of centers 210. For example, using a configuration having a second map of a total of six centers 210 (three centers 210 at the top portion 230 and three centers 210 at the bottom portion 240), the center 210 on the bottom right side may first set the hot front end 220, after which The thermal front end 220 is disposed at the center 210 of the bottom center at any time interval, such as 5 minutes or 10 minutes. After another arbitrary time interval (eg, 3 minutes or 6 minutes), the center 210 on the bottom right side may be provided with a hot front end 220.

The three centers 210 at the top portion 230 can be configured in a similar manner. The sequence of thermal front ends 220 can be interspersed with the center 210 from the top portion 230 and the center 210 from the bottom portion 240. In another example, before the hot front end 220 is disposed at the center 210 on the left side of the bottom, the top central center 210 and the top right center 210 are disposed simultaneously with the hot front end 220. The top left center 210 and the bottom right center 210 may simultaneously set the hot front end 220 or sequentially set the hot front end 220. In other words, the thermal front end 220 is disposed in the center 210 of all the top portion 230 and the bottom portion 240. Any combination and type can be used. The particular combination or type of thermal front ends 220 disposed among all of the centers 210 may depend on the processing stage of the soil lot and/or what conditions the process is operating on, such as soil type, temperature, type of contamination, and the like.

In one or more embodiments, the top portion 230 of the soil tank 120 and the bottom portion 240 can be used to adsorb contaminated soil 125 within the soil tank 120 at different times and at different times. One or more centers 210 of the bottom portion 240 of the soil tank 120 may provide a hot front end 220 prior to providing the hot front end 220 at one or more centers 210 of the top portion 230 to produce dry, heated, and/or fractured soil The passage is in the bottom portion 240 of the contaminated soil 125 such that the vaporized contamination of the top portion 230 can pass through the passage when the center 210 of the top portion 230 is disposed with the hot front end 220 entering the surrounding contaminated soil 125.

The thermal front end 220 can be pulsed by releasing the pre-treatment gas 180 from the well screen 190 to prevent conditions such as air flow, pressure, etc. from approaching or remaining in a steady state. The steady state system can be a system that has at least one characteristic or condition that is constant. The pulsed injection of the pretreatment gas 180 can increase the entropy in the soil tank and can help to remove contamination and/or particles from the contaminated soil 125, thereby opening the passage for the flow of pollution, ultimately resulting in higher efficiency. Adsorption treatment.

In addition to the ability to pulsing the pretreatment gas 180 to the contaminated soil 125 in a pulsed manner, the temperature of the pretreatment gas 180 can be gradually increased or decreased by adjustment of the heat source 170, through subsequent injection of the pretreatment gas 180. The flow of the pretreatment gas 180 into the soil tank 120 can be gradually increased or gradually decreased by the adjustment of the fan. Each center 210 can be independently controlled such that different portions of the contaminated soil 125 can receive different treatments related to temperature and/or flow. The exhaust valve 310 of FIG. 3 can be closed to retain accumulated pressure (injection from the pretreatment gas 180) within the soil tank 120 and/or the processing chamber 110.

Figure 3 is a modularized heating configuration of Figure 2 for detecting and/or measuring the parameters of the post-treatment gas 185.

Basically, FIG. 3 illustrates the function of the exhaust valve 310 and the parametric sensor 320.

The exhaust valve 310 is located at the aftertreatment gas exit path 198. The aftertreatment gas 185 can be the product produced by the pretreatment gas 180 through the contaminated soil 125, thereby evaporating volatile hydrocarbon contamination. The aftertreatment gas 185 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. As the after-treatment gas 185 flows from the processing chamber 110, the parameter sensor 320 can be configured to detect and/or monitor one or more parameters of the after-treatment gas 185. The parameters of the aftertreatment gas 185 include carbon monoxide concentration, oxygen concentration, hydrocarbon concentration, temperature, flow rate, and/or humidity. The feedback mechanism can adjust the parameters of the pre-treatment gas 180 based on input from the parametric sensor 320.

In one or more embodiments, a method of heating a portion of contaminated soil 125 of soil tank 120 is disclosed. The injection port 130 can direct the pretreatment gas 180 of the heat source 170 into the well screen 190. The center 210 can be configured to enter the hot front end 220 into the surrounding contaminated soil 125, thereby evaporating volatile hydrocarbon contamination, and the vaporized volatile hydrocarbon contamination can then exit the soil tank 120 and be treated by the post-treatment gas leaving the path 198. The chamber 110 is like the aftertreatment gas 185.

Heating of individual regions of the contaminated soil 125 can be configured to release the pretreatment gas 180 to the surrounding contaminated soil 125 in a single zone at a time. Once the hot front 220 from the center 210 desorbs contamination from the target area of the contaminated soil 125, the parameter sensor 320 can detect and/or measure one or more of the generated post-process gases 185 flowing. parameter. The data input from the parametric sensor 320 identifies and analyzes the contents of the single area where the contaminated soil 125 is being heated. For example, if parameter sensor 320 indicates that a single region of aftertreatment gas 185 has a high level of oxygen The carbon concentration (which may indicate an incomplete treatment of a single zone) may be injected into the single zone of contaminated soil 125 until the parameter sensor 320 reaches lower carbon monoxide data.

Any of the above parameters can be processed the same. The low flow data of the parametric sensor 320 may indicate that the single region of the contaminated soil 125 may be clogged, or that the injection port 130 and/or the well screen 190 responsible for the hot front end of the single region may be clogged. The high humidity data of the parametric sensor 320 may indicate that the single region of the contaminated soil 125 may have a high moisture content, and vice versa.

Fig. 4 is a schematic diagram showing the change of the thermal front end of the center 210 of the modular heating arrangement of Fig. 2.

Basically, FIG. 4 illustrates the hot front end A 410, the hot front end B 420, the hot front end C 430, and the terminal distance 440.

The center 210 of FIG. 2 can provide the hot front end 220 into the contaminated soil 125.

The hot front end A 410 is arbitrarily set a distance from the center 210. The hot front end A 410 temperature is higher than the hot front end B 420, the first two temperatures are higher than the hot front end C 430, and all hot front end temperatures are higher than the end distance 440. The terminal distance 440 can be defined as the effective distance of the thermal front end 220 measured by the center 210. The contaminated soil 125 outside the terminal distance 440 of the center 210 is not affected by the processing procedure.

In one or more embodiments, a soil tank 120 comprising a modular heating arrangement is disclosed. The modular heating arrangement includes one or more centers 210 to set the hot front end 220 into the contaminated soil 125 within the soil tank 120. Thermal front end 220 can have a limited terminal distance 440, such as 18 inches, 20 inches, or 25 inches. The terminal distance 440 can be manually limited to the desired distance. The distance of the hot front end 220 can be limited by the injection of the mouth valve 140, the valve of the well screen 190, and/or the heat source 170. The mechanical adjustment of the output is mechanically controlled. The limit of the distance of the thermal front end 220 can also be electronically controlled, such as through the controller 172.

The plurality of centers 210 can be strategically spaced to optimize the desorption treatment of the heating conditions. For example, the spacing of the two centers 210 allows for maximum thermal coverage of the contaminated soil 125. This spacing may be twice the distance of the center 210 from the terminal distance 440, such as 36 inches, 40 inches, or 50 inches, to meet the above exemplary distance of the terminal distance 440. However, other configurations are also possible. For example, if the soil type, moisture content, contamination, and/or environmental conditions of the treatment process render the hot front end C 430 ineffective, the optimal distance between the plurality of centers 210 may overlap multiple centers in the soil tank 120 A plurality of hot front ends 220 of 210 are disposed in a manner of all areas of the hot front end C 430.

Figure 5 concludes the problem of condensation in the soil tank to be solved next.

Basically, Figure 5 illustrates condensation 510 in contaminated soil 125.

The soil evaporation desorption treatment system of the present invention is disclosed in one or more embodiments. An advantage of the present invention is the modularized heating configuration of Figure 2, whereby the pretreatment gas 180 that can desorb contaminated soil 125 can be at a plurality of centers 210 of the top portion 230 and a plurality of centers 210 of the bottom portion 240. It is directly injected into the soil tank 120. In one or more embodiments, one or more centers 210 of the bottom portion 240 may be heated prior to heating one or more centers 210 of the top portion 230 to minimize or eliminate condensation 510, which may Accumulation from the prior art thermal desorption system wherein pretreatment gas 180 is injected into the top of the soil tank 120 and is withdrawn at the bottom of the soil tank 120 where the aftertreatment gas exits the path 198.

In past systems, pretreatment gas 180 may pass through the top of soil tank 120 and may desorb contaminated soil 125 that is most exposed to the top surface of the pretreatment gas. However, due to the volatile contamination of the evaporation containing water and other evaporating compounds begin to flow backwards to the gas leaving Path 198, the formation of condensation 510, is due to densely cooled (Dense Cold) contaminated soil 125 located in the lower portion of soil tank 120. This condensation 510 requires a significant amount of energy for the input of the pretreatment gas 180 and the time it takes to dry and eventually evaporate. In addition to providing a path for dry, heated, and/or ruptured soil at the bottom portion 240 of the contaminated soil 125 to flow evaporative contamination at the top portion 230, the present invention minimizes or may eliminate condensation of the processing system. 510.

Figure 6 is an illustration of the operation of injecting the mouthpiece sleeve 150 of the preferred embodiment of the present invention. The injection port sleeve 150 is coupled to the injection port 130 to the soil tank 120 of Figure 1.

Basically, FIG. 6 details the injection jaw sleeve extension position 610 and the injection jaw sleeve retraction position 620, both of which may be different configurations of the injection jaw sleeve 150.

When the soil tank 120 is installed within the processing chamber 110, the injection port sleeve extension location 610 can be used to connect the injection port 130 to the soil tank 120. The injection mouthpiece extension position 610 can be engaged through a pneumatic piston device positioned at the injection port 130 and urge the injection port sleeve 150 into the injection port sleeve extension position 610 configuration. The injection mouthpiece extension location 610 includes a resealable sealing compound at its contact edge. The sealing compound can minimize or prevent leakage of the pretreatment gas 180 from the point of contact between the injection port 130 and the soil tank 120 when the injection jaw sleeve 150 is locked in position. Both the injection mouthpiece extension position 610 and the injection mouthpiece retracted position 620 can be configured in a manner that allows leakage of the pretreatment gas 180 to be contained within the processing chamber 110 such that its negative impact is negligible . The injection mouthpiece sleeve 150 can be configured to never be disposed beyond the processing chamber 110 when it is configured in the injection mouthpiece retracted position 620.

In one or more alternative embodiments, the infusion mouthpiece 150 can be non-retractable, but can be structurally secured to the infusion port 130. Expansion joint (for example, bellows) It is used as an injection porter sleeve 150. The expansion joint may require a manual locking mechanism that locks the expansion joint to the soil tank 120 when the soil tank 120 is installed in the processing chamber 110. The locking mechanism can be any mechanism that locks the expansion joint to the soil tank 120, such as screws, nuts and bolts, twist-lock fittings, door hooks, and the like. A complementary manual de-locking mechanism may also be required when the soil tank 120 is ready to be removed from the processing chamber 110.

Manually locking or manually de-locking the expansion joint for automatic locking and automatic de-locking, for example through an adapter at the contact edge of the expansion joint, the adapter allowing the expansion joint to be lowered and raised through the soil tank 120 The vertical sliding motion of the processing chamber 110 engages and disengages the soil tank 120. The automatic locking and automatic de-locking of the expansion joint can also be configured such that the expansion joint passes through the outer wall 160 of the soil tank 120 after the soil tank 120 is installed in the processing chamber 110 and eventually expands within the soil tank 120. The sleeve surrounding the expansion joint opening prevents the expansion joint from retracting out of the soil tank 120 when the expansion joint expands due to heat and pressure from the injection of the pretreatment gas 180.

In one or more embodiments, the injection port 130 can be positioned in an inclined or diagonal position. The tilted or diagonal position can be configured to inject the mouth 130 upwardly, such as a positive 45 degree angle. The tilted or diagonal position may also be configured to inject the mouth 130 downwardly, such as a negative 20 degree angle. When the soil tank 120 is installed within the processing chamber 110, any other configuration of the infusion port 130 can be used to connect to the soil tank 120.

Figure 7 is an alternative modular heating arrangement of the soil tank 120 of the preferred embodiment of the present invention, which includes a spherical structure to dissipate heat.

Basically, Figure 7 illustrates the scattering sphere 710 and the conduit 720.

In one or more embodiments, the pretreatment gas 180 passes through the injection port 130 Guided into the soil tank 120, the soil tank 120 contains contaminated soil 125. The pretreatment gas 180 can be heated by a heat source 170 and/or an inert gas (e.g., by the addition of nitrogen). The pre-treatment gas 180 can be disposed through the conduit 720 into the contaminated soil 125, and the conduit 720 includes a dispersing sphere 710 for distributing the hot front end 220 into the surrounding contaminated soil 120. The hot front end 220 emanating from the spreading sphere 710 may look different from the hot front end 220 of the well screen 190 of Figure 1; however, the technical idea is the same since both hot front ends 220 contain the center 210. As the hot front 220 moves away from the center 210, the temperature of the hot front 220 will drop until the hot front 220 reaches the terminal distance 440, where after that the hot front 220 is no longer effective for desorbing the contaminated soil 125.

The diffusing sphere 710 can be any spherical or elliptical structure that can be constructed of strands of metal, fiber, or other ductile material, and can be similar to a network or mesh because it can have many strands of attached or braided strands. The scattering sphere 710 can be used for measurement and counting of any size. If more than one scatter sphere 710 is used in the system, the plurality of scatter spheres 710 can be oriented in a variety of directions, such as a single scatter sphere 710 positioned at the top portion 230 and three scatter spheres 710 positioned at the bottom portion 240, Or vice versa. The conduit 720 coupled to the spreading sphere 710 can also be oriented in a variety of configurations, such as being vertical and/or diagonal with respect to the soil tank 120.

8 is another alternative modular heating arrangement of the soil tank 120 of the preferred embodiment of the present invention, the modular heating arrangement including an injection port 130 coupled to the bottom of the soil tank 120.

Basically, Figure 8 illustrates an injection port adapter 820.

The soil evaporation desorption system of the present invention is disclosed in one or more embodiments. The pretreatment gas 180 can be heated in the heat source 170 and can be directed into the soil tank 120 through the injection port 130, which contains the contaminated soil 125. The injection port 130 can be coupled to the well screen 190 and/or the conduit 720 through the bottom of the soil tank 120. When the injection port adapter 820 is installed in the processing chamber Injecting the mouthpiece adapter 820 can be used to cushion the impact of the soil tank 120. The installation of the soil tank 120 can automatically connect the injection port adapter 820 of the injection port 130 to the soil tank 120, thereby automatically coupling the conduit 720 and/or the well screen 190 of the injection port 130 to the soil tank 120. The weight of the soil tank 120 may be sufficient to form a seal with the infusion port adapter 820. This seal prevents pre-treatment gas 180 from leaking from heat source 170 into processing chamber 110.

The well screen 190 and/or conduit 720 can be configured to line straight from the bottom of the soil tank 120 to the top of the soil tank 120. In one or more alternative embodiments, the well screen 190 and/or the conduit 720 can be configured in a zigzag pattern, or a configuration having a combination of horizontal and vertical patterns.

9A and 9B illustrate the installation of the soil tank 120 of the preferred embodiment of the present invention, with yet another alternative modular heating arrangement for the soil tank 120.

Basically, the 9A and 9B drawings illustrate the well screen opening 910, the spring 920, and the base support 930.

In one or more embodiments, the soil tank 120 contains contaminated soil 125 and may be mounted within the processing chamber 110. Pretreatment gas 180 may pass from heat source 170 through injection port 130 to conduit 720 and/or well screen 190 of soil tank 120. The center 210 can set the thermal front end 220 into the contaminated soil 125. The well screen 190 and/or conduit 720 includes a well screen opening 910 that can be configured to be coupled to the injection port 130. When the soil tank 120 is installed within the processing chamber 110, the edge of the soil tank 120 containing the well screen opening 910 can contact the flange at the contact edge of the injection port 130. The flange containing the spring 920 can be pushed toward the side wall of the infusion port 130 because of the weight of the soil tank 120. The flange of the injection port 130 includes a seal to prevent pre-treatment gas from leaking into the processing chamber 110.

The flange can be configured as an opening for the injection port 130 that can be wider than the well screen opening 910. The reaction between the gravity of the soil tank 120 and the potential energy of the spring 920 can form a seal between the injection port 130 and the well screen opening 910. The base support 930 can support the weight of the soil tank 120 and can prevent damage to the injection port 130 and its flange by the downward force of the soil tank 120. When the soil tank 120 is removed from the processing chamber 110, the spring 920 can apply its potential energy to move the flange back into its original rest position.

In one or more alternative embodiments, the flange may be immovably secured to the injection port 130. The well screen opening 910 of the soil tank 120 can be configured to be coupled to the injection port 130 without the need for a spring 920. The flange can be configured as an opening for the injection port 130 that can be wider than the well screen opening 910. The flange of the injection port 130 includes a seal to prevent pre-treatment gas from leaking into the processing chamber 110. The base support 930 can support the weight of the soil tank 120 and can prevent damage to the injection port 130 and its flange by the downward force of the soil tank 120.

In other embodiments, the injection port mouth 130 may not include a flange. When the soil tank 120 is installed in the processing chamber 110, the well screen opening 910 of the soil tank 120 can be directly coupled to the injection port 130. The base support 930 can support the weight of the soil tank 120 and can prevent damage to the injection port 130 by the downward force of the soil tank 120. The opening of the injection port 130 may be larger than the opening of the well screen opening 910.

10A and 10B are diagrams showing an alternative configuration of the soil tank 120 of the preferred embodiment of the present invention.

Basically, the 10A and 10B drawings illustrate the well shield sleeve 1010 and the grid 1020.

The well screen curtain sleeve 1010 can be configured to vertically maintain the well screen 190 in position. The well screen 190 can be removable, while the well screen sleeve 1010 can allow for easy installation of the well screen 190. The well screen 190 can extend beyond the soil tank 120 for easy handling, particularly when the well screen The curtain 190 is hot when used. The technician may need to replace or refurbish the well screen 190 that may be clogged or damaged. The diameter of the portion of the well screen 190 that extends beyond the soil tank 120 can be less than the diameter of the injection port 130, the injection port sleeve 150, and/or the flange of the injection port 130. The length of the portion of the well screen 190 that extends beyond the soil tank 120 can be configured to not directly contact the injection port 130, the injection port sleeve 150, and/or the injection port 130 flange.

In one or more embodiments, the well screen 190 may not have a portion that extends beyond the soil tank 120. The edges of the well screen 190 that may not be supported by the well screen sleeve 1010 may be flush with the corresponding edges of the soil tank 120. The edges of the well screen 190 that are not supported by the well screen sleeve 1010 can be supported by different sets of sleeves or brackets. In accordance with one or more embodiments, in addition to being supported by the well screen curtain sleeve 1010, the screen 190 can be locked to a position, such as a soil box 120 that is bolted or threaded to the edge of the soil tank 120 (soil tank) The edge of the 120 includes a well screen curtain sleeve 1010) such that the well screen 190 can be horizontally loosened due to vibration of the operation.

Grid 1020 can be a barrier made of metal, fiber, or a connecting strand of other malleable material that can be similar to a network or mesh, as it can have many attached or braided strands. The grid 1020 is operable to allow the flow of aftertreatment gas 185 to be subjected to contaminated soil 125 into the aftertreatment gas exit path 198 and to screen out dust, soil, sludge, clay, sand, rock, and other solid materials within the contaminated soil 125. . Grid 1020 may allow for higher air conductivity and velocity through which pretreatment gas 180 flows because its large surface area may be in contact with contaminated soil 125. In addition to the large surface area described above being contactable with contaminated soil 125, the top, dome-shaped surface of mesh 1020 can provide compressive strength to grid 1020. Additionally, the top, dome-shaped surface of the grid 1020 can be configured to be at a distance from the opening of the post-treatment gas exit path 198 that is sufficient to prevent clogging of dust, soil, sludge, clay, sand, rock, and other solid materials. After treatment gas Open the opening of path 198. The distance from the top of the grid 1020, the dome shaped surface to the opening of the aftertreatment gas exit path 198 may be from 5 inches to 12 inches, such as 7 inches or 9 inches.

11 is yet another alternative modular heating arrangement for the soil tank 120 comprising only a single center 210 and a single hot front end 220 in accordance with a preferred embodiment of the present invention.

Basically, Fig. 11 shows distance A 1110, distance B 1120, and reference line 1130.

In one or more embodiments, the soil tank 120 of the thermal desorption system includes a modular heating configuration as described in FIG. The modular heating arrangement may also include only a single center 210 and a single thermal front end 220, wherein a single center 210 and a single hot front end 220 may be located above the midpoint of the soil tank 120, such as closer to the top of the soil tank 120, as compared to The bottom of the soil tank 120 is. The distance A 1110 may represent the distance between the single center 210 and the top of the soil tank 120 (eg, the sealable cover 122). The distance B 1120 may represent the distance between the single center 210 and the bottom surface of the soil tank 120. Reference line 1130 can be a line representing the vertical position of soil tank 120. Reference line 1130 may allow for easy comparison between distance A 1110 and distance B 1120.

In one or more embodiments, a single center 210 can be located closer to the top of the soil tank 120 such that the distance A 1110 is less than the distance B 1130. This configuration of the center 210 may allow volatile contamination within the contaminated soil 125 to evaporate and then flow downward to the post-treatment gas exit path 198. The gas extraction fan can provide a negative pressure from within the soil tank 120, so when a negative pressure is applied to the soil tank 120, the hot front end 220 is pulled down with any evaporation contamination. The pull-down thermal front end 220 can further adsorb contaminated soil 125 located below the center 210. The desired ratio between the distance A 1110 and the distance B 1130 may be any ratio less than 1/1 (1.0), such as 1/2 (0.5) or 1/3 (0.33).

12A and 12B are diagrams showing a system for cyclic thermal desorption of the preferred embodiment of the present invention. System and processing.

Basically, the pressure sensors 1210 are illustrated in Figures 12A and 12B.

In one or more embodiments, systems and processes for circulating thermal desorption are disclosed. The soil tank 120 can be configured to hold the contaminated soil 125 and can be placed in the processing chamber 110. Pretreatment gas 180 may be provided to processing chamber 110, for example, to heat contaminated soil 125 to evaporate volatile contaminants. The exhaust valve 310 can be closed, for example, to increase the pressure in the soil tank 120 and/or the processing chamber 110. After the soil tank 120 and/or the processing chamber 110 reaches a certain pressure, such as atmospheric pressure or a pressure above atmospheric pressure (eg, a pressure greater than 1 bar, such as 2-10 bar), the exhaust valve 310 can be opened, This can reduce the pressure in the soil tank 120 and/or the processing chamber 110. This treatment can be repeated until the contaminated soil 125 is cleaned. During the time that the exhaust valve 310 is open, the pre-treatment gas 180 may continue to flow or may be shut down.

In one or more embodiments, the aftertreatment gas exit path 198 coupled to the exhaust valve 310 can be opened to atmospheric pressure or can be coupled to a vacuum assembly, such as a gas extraction fan. To allow the aftertreatment gas to exit path 198 to atmospheric pressure, the pressure within soil tank 120 and/or processing chamber 110 may be higher than atmospheric pressure. To couple the aftertreatment gas exit path 198 to the vacuum assembly, the pressure within the soil tank 120 and/or the processing chamber 110 can be at or above atmospheric pressure.

Figure 13 is a view showing the configuration of a circulating heat desorption soil in the preferred embodiment of the present invention.

Figure 13 details the rock 1310.

In one or more embodiments, a soil configuration for a cyclic thermal desorption process is disclosed. The soil tank 120 can be configured to hold the contaminated soil 125 and can be placed in the processing chamber 110. Rocks 1310 can be disposed in the soil tank 120 to improve flow conductivity through the soil tank 120. The high flow conductivity provided by the rock 1310 can help release the pressure of the processing chamber 110, which can be improved The heat of the cycle heat removal treatment.

Rock 1310 may be premixed with contaminated soil 125 prior to placing the mixture into soil tank 120. Rock 1310 can be of any size and shape sufficient to increase flow conductivity, such as between 1 cm and 2 inches, such as 1 inch. Rock 1310 can be a mixture of various rocks 1310 having different sizes and shapes. Rock 1310 may also be added to soil tank 120 prior to placement of contaminated soil 125 into soil tank 120 such that rock 1310 may be present at the bottom of soil tank 120. The rock 1310 present at the bottom of the soil tank 120 may improve the flow conductivity of the aftertreatment gas exiting the opening of the path 198.

Figure 14 is a flow diagram of a method of dispensing a portion of pretreatment gas 180 into soil tank 120 in accordance with a preferred embodiment of the present invention.

Basically, in FIG. 14, operation 1410 can mount soil tank 120 within processing chamber 110, which contains contaminated soil 125. Processing chamber 110 and/or soil tank 120 may be insulated and/or sealed to maintain pressure. Contaminated soil 125 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The operation 1420 can inject the pretreatment gas 180 into the bottom portion 240 of the soil tank 120. The bottom portion 240 includes one or more centers 210 to provide one or more thermal front ends 220 into the surrounding contaminated soil 125. Work 1430 can then inject pre-treatment gas 180 into top portion 230 of soil tank 120. The top portion 230 includes one or more centers 210 to provide one or more thermal front ends 220 into the surrounding contaminated soil 125. Thereafter, the job 1440 can simultaneously inject the pretreatment gas into the top portion 230 and the bottom portion 240. Work 1440 can act as a final rinse to completely absorb all residual contamination from contaminated soil 125. Fresh air flushing of atmospheric air can also be added to the process after operation 1440. Work 1450 can exhaust aftertreatment gas 185 out of soil tank 120. Aftertreatment gas 185 comprises condensable hydrocarbon Contamination and/or non-condensable hydrocarbon contamination.

Figure 15 is a flow diagram of a method of injecting pre-treatment gas 180 into soil tank 120 in accordance with a preferred embodiment of the present invention.

In FIG. 15, operation 1510 can mount soil tank 120 within processing chamber 110, which contains contaminated soil 125. Processing chamber 110 and/or soil tank 120 may be insulated and/or sealed to maintain pressure. Contaminated soil 125 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The job 1520 can continuously inject the pretreatment gas 180 into the soil tank 120 through one or more injection ports 130. Any combination and sequence of one or more thermal front ends 220 from one or more centers 210 at the bottom portion 240 of the soil tank 120 and the top portion 230 can be used. The job 1530 can gradually increase or gradually decrease the temperature of the pretreatment gas 180. The gradual increase or decrease in the temperature of the pretreatment gas 180 can be mechanically and/or electronically controlled by the heat source 170. Work 1540 can exhaust aftertreatment gas 185 out of soil tank 120. The aftertreatment gas 185 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination.

Figure 16 is a flow diagram of a method of detecting and/or measuring parameters of a gas 185 after a preferred embodiment of the present invention.

Basically, in FIG. 16, operation 1610 can mount soil tank 120 within processing chamber 110, which contains contaminated soil 125. Processing chamber 110 and/or soil tank 120 may be insulated and/or sealed to maintain pressure. Contaminated soil 125 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The operation 1620 can inject the pretreatment gas 180 into the soil tank 120 through a single injection port 130. A single center 210 corresponding to a single injection port 130 can be provided with a single hot front end 220 into the surrounding contaminated soil 125, thereby adsorbing contaminated soil 125. Work 1630 can exhaust aftertreatment gas 185 out of soil tank 120. Aftertreatment gas 185 contains Condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The job 1640 can use the parameter sensor 320 to detect and/or measure one or more parameters of the post-process gas 185. The data from the parametric sensor 320 may detail the characteristics of the contaminated soil 125 at a single zone, wherein the center 210 is provided with a hot front end 220. Based on the data output from the parametric sensor 320, further actions can be taken, such as if the carbon monoxide data output from the parametric sensor 320 is high, the processing cycle can be re-run on the soil lot. High carbon monoxide output data may indicate that the desorption process is incomplete or inefficient.

Figure 17 is a flow chart showing a method of increasing the pressure in the soil tank 120 prior to the use of the exhaust valve 310 to discharge the after-treatment gas 185 in accordance with a preferred embodiment of the present invention.

Basically, in FIG. 17, operation 1710 can mount soil tank 120 within processing chamber 110, which contains contaminated soil 125. Processing chamber 110 and/or soil tank 120 may be insulated and/or sealed to maintain pressure. Contaminated soil 125 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The operation 1720 can close the exhaust valve 310 at the aftertreatment gas exit path 198. Then, the operation 1730 can inject the pretreatment gas 180 into the soil tank 120, which increases the pressure of the soil tank 120 because the exhaust valve 310 is closed. The temperature of the pretreatment gas 180 may also be increased by mechanical rise of the heat source 170 and/or electronically by the controller 172. The operation 1740 can open the exhaust valve 310 at the aftertreatment gas exit path 198. When the exhaust valve 310 is open, the pre-treatment gas 180 may continue to be injected through the injection port 130, or the exhaust valve 310 may be closed. Work 1750 can exhaust aftertreatment gas 185 out of soil tank 120. The aftertreatment gas 185 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination.

Figure 18 is a flow diagram of a method of maintaining the pressure within the soil tank 120 prior to discharge of the post-treatment gas 185 using the exhaust valve 310 in accordance with a preferred embodiment of the present invention.

Basically, in FIG. 18, operation 1810 can mount soil tank 120 within processing chamber 110, which contains contaminated soil 125. Processing chamber 110 and/or soil tank 120 may be insulated and/or sealed to maintain pressure. Contaminated soil 125 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination. The operation 1820 can close the exhaust valve 310 at the aftertreatment gas exit path 198. Work 1830 can then inject pretreatment gas 180 into soil tank 120, which increases the pressure of soil tank 120 because exhaust valve 310 is closed. The temperature of the pretreatment gas 180 may also be increased by mechanical rise of the heat source 170 and/or electronically by the controller 172. The operation 1840 may stop injecting the pretreatment gas 180 into the soil tank 120, which may maintain the pressure and temperature of the soil tank 120. Work 1850 can open exhaust valve 310 at aftertreatment gas exit path 198. When the exhaust valve 310 is open, the pre-treatment gas 180 may continue to be injected through the injection port 130, or the exhaust valve 310 may be closed. Work 1860 can exhaust aftertreatment gas 185 out of soil tank 120. The aftertreatment gas 185 contains condensable hydrocarbon contamination and/or non-condensable hydrocarbon contamination.

The present invention has been described in some embodiments, however, it is understood that various modifications may be made without departing from the spirit and scope of the invention. In addition, the logic flow depicted in the drawings is not required to be in a particular order or in a sequential order to achieve the desired result. Further steps may be provided from the described processes, or steps may be eliminated, and other components may be added or removed from the described systems. Accordingly, other embodiments are within the scope of the following claims.

110‧‧‧Processing chamber

120‧‧‧ soil tank

122‧‧‧Cover

125‧‧‧Contaminated soil

130‧‧‧Injected into the mouth

140‧‧‧Injection valve

150‧‧‧Injected into the mouth sleeve

160‧‧‧ outer wall

170‧‧‧heat source

172‧‧‧ Controller

180‧‧‧Pretreatment gas

185‧‧‧ After treatment gas

190‧‧‧ well screen

198‧‧‧ After treatment gas leaving the path

Claims (20)

A thermal desorption soil remediation system comprising: a processing chamber; at least one injection port, coupled to an outer wall of the soil tank when a soil tank is installed in the processing chamber, wherein the at least one injection port a port configuration configured to direct a pre-treatment gas from a source into the soil tank, wherein a thermal front end from the heat spread structure is used to desorb contaminated soil in the soil tank; A top portion of the soil tank and a bottom portion of the soil tank are configured to receive pretreatment gas from the heat spread structure at different time intervals. The system of claim 1, further comprising: an injection port sleeve coupled to the at least one injection port to retract when a door of the processing chamber is opened. The system of claim 1, further comprising: wherein the top portion receives the pretreatment gas only after the processing of the bottom portion is completed. The system of claim 1, further comprising: an exhaust valve positioned at a post-treatment gas exit pathway to allow the soil tank to alternate between a pressurized state and a pressure Between release states The way to release the aftertreatment gas from the soil tank. The system of claim 4, further comprising: measuring a parameter of the post-treatment gas after directing the pre-treatment gas into the soil tank at a single injection port. A thermal desorption soil remediation system comprising: a processing chamber; at least one injection port, coupled to the processing chamber when a soil tank is installed in the processing chamber, wherein the at least one injection port is configured Directing a pretreatment gas from a source into the processing chamber, wherein a thermal front end from the pretreatment gas is used to desorb contaminated soil in the soil tank; at least one of the tops of the injection port is included a portion comprising at least a bottom portion of the injection port, wherein when two or more injection ports are used, wherein the bottom portion is configured to receive a pretreatment gas before the top portion; and an exhaust valve The post-treatment gas from the soil tank is released in a manner that allows the processing chamber to alternate between a pressurized state and a pressure released state. The system of claim 6, wherein the method further comprises: after guiding the pre-treatment gas into the soil tank in a single injection port, measuring the rear portion A parameter of the gas. The system of claim 6, further comprising: wherein the top portion receives the pretreatment gas only after the bottom portion has been processed. The system of claim 6, further comprising: wherein the top portion and the bottom portion simultaneously receive the pretreatment gas after the top portion and the bottom portion are processed. The system of claim 6, further comprising: wherein the at least one injection port directs the pretreatment gas into the soil tank in a pulse. The system of claim 6, further comprising: wherein the at least one injection mouth is independently controlled when two or more injection ports are used. The system of claim 6, further comprising: wherein the at least one injection port successively directs the pretreatment gas into the soil tank when two or more injection ports are used. The system of claim 6, further comprising: wherein the temperature of the pretreatment gas is gradually reduced by continuous pretreatment gas injection. The system of claim 6, wherein the pressure in the soil tank is gradually increased by continuous pretreatment gas injection. For example, the system of claim 6 includes: wherein the thermal front end has a maximum terminal distance of 24 inches. A method for thermally desorbing soil remediation comprises: installing a soil tank in a processing chamber, the soil tank containing contaminated soil; and injecting a pretreatment gas into the soil before injecting the pretreatment gas into a top portion of the soil tank a bottom portion of the tank, wherein a hot front end from the pretreatment gas is used to desorb contaminated soil in the soil tank; to allow the soil tank to alternate between a pressurized state and a pressure released state The process gas is released from the soil tank; and when a door of the process chamber is opened, a retractable sleeve is retracted. The method of claim 16, further comprising: measuring a parameter of the post-treatment gas after guiding the pre-treatment gas into the soil tank at a single injection port. The method of claim 16, further comprising: wherein the thermal front end has a maximum terminal distance of 18 inches. The method of claim 16, further comprising: wherein the pressure in the processing chamber is gradually increased by continuous pretreatment gas injection. The method of claim 16, further comprising: wherein the temperature of the pretreatment gas is gradually reduced by continuous pretreatment gas injection.