JP2019172822A - Device, method, program for providing yield of product material in fcc device, non-temporary computer readable recording medium - Google Patents

Abstract

To provide a device for providing yield of a product material to a user without depending on direct simulation.SOLUTION: A device proposes yield of a product material of an FCC device for acquiring a product material by flowing contact decomposition from a raw oil. The device executes: a step for acquiring user achievement information including a flow rate of a raw oil, a state of the raw oil, a product material yield balance, and a kind of catalyst, as achievement of the FCC device of the user, and a scheduled operation condition including at least, a flow rate of the raw oil and state of the raw oil for which an operation of a user is scheduled; a step for correcting a yield balance calculation function for calculating a production amount of each product material based on at least, the raw oil flow rate, the raw oil state, the product material yield balance and the kind of catalyst, on the basis of comparison between (a) reference achievement information including at least, a raw oil flow rate, a raw oil state, a product material yield balance and a kind of catalyst in a bench plant, and (b) user achievement information; and a step for, on the basis of the scheduled operation condition, using the corrected yield balance calculation function, calculating a production amount of each product material acquired for at least one kind of catalyst.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an apparatus, a method, a program, and a non-transitory computer-readable recording medium that provide a product yield of an FCC apparatus.

  2. Description of the Related Art A fluid catalytic cracking apparatus (hereinafter referred to as an FCC apparatus) that obtains a highly economical product such as light hydrocarbons from fluid feed cracking by fluid catalytic cracking is known.

JP 2003-58206 A

  The FCC device can replace the catalyst even during operation of the device. By replacing the catalyst, even if the raw material oil is supplied to the FCC apparatus under the same conditions, the products obtained can be made different. For this reason, in order to obtain a more economical product by replacing the catalyst during operation, for example, according to the supply and demand situation of the petroleum product at that time, it is possible to produce as many petroleum products as possible with a higher unit price. May be desired.

  However, the FCC apparatus has various restrictions on the apparatus depending on the maximum extraction amount of each fraction extraction pump. For example, the maximum removal amount of the pump for taking out fractions A and B is 100 [barrel / day (hereinafter referred to as B / D)], and before the catalyst change, the production amount of fraction A is 50 [B / D] and the production amount of fraction B is 99 [B / D]. After changing the catalyst, the amount of fraction A produced may be 70 [B / D] and the amount of fraction B produced may be 101 [B / D]. In this case, the amount of fraction A produced can be dramatically increased, but the amount of fraction B produced exceeds the maximum pumping amount, so that it cannot be operated under the same conditions. There is a need to reduce the amount. Thus, since the fluctuation | variation of the production amount of each product accompanying replacement | exchange of a catalyst is difficult to predict, replacement | exchange of the catalyst in operation cannot be performed easily.

  Therefore, a direct simulation of the FCC apparatus is proposed by Patent Document 1 and the like. Since such direct simulation closely simulates the shape of the FCC device, the reaction model of each fraction, and the like, enormous amounts of input data and calculation amount are required. For this reason, in order to change the production amount of each product at any time by periodically replacing the catalyst, it is not realistic to predict the yield of the product using the direct simulation.

  Therefore, the present invention provides an apparatus and a method for providing a product yield to a user without using direct simulation.

In order to achieve the above object, the present invention provides the following.
A device for proposing the yield of a product of an FCC device that uses a terminal and a server connected to the terminal via a network to obtain a product from raw oil by fluid catalytic cracking. The device is
A processor and a storage unit for storing computer-readable instructions;
When the computer-readable instructions are executed by the processor, the device
User performance information including at least feedstock flow rate, feedstock properties, product yield balance, catalyst type as a result of the user's FCC device, and at least feedstock flow rate, feedstock Obtaining planned operating conditions including properties;
A yield balance calculation function for calculating the production amount of each product on the basis of at least the feed oil flow rate, the feed oil property, the product yield balance, and the type of catalyst, (a) at least the feed oil flow rate and feedstock in the bench plant Correction based on the comparison of the property of the oil, the product yield balance, the reference performance information including the type of catalyst, and (b) the user performance information;
And a step of calculating a production amount of each product obtained for each of at least one or more types of catalyst using the corrected yield balance calculation function based on the scheduled operation condition. A device that provides the product yield of an FCC device.

In order to achieve the above object, the present invention provides the following.
A method for providing a product yield of a fluid catalytic cracking device (FCC device) that obtains a product from a raw oil by fluid catalytic cracking via a network to a terminal,
User performance information including at least feedstock flow rate, feedstock properties, product yield balance, catalyst type as a result of the user's FCC device, and at least feedstock flow rate, feedstock Obtaining planned operating conditions including properties;
The yield balance calculation function for calculating the production amount of each product based on at least the feed oil flow rate, the feed oil properties, the product yield balance, and the type of catalyst, (a) at least the feed oil flow rate and the feed oil in the bench plant Correction based on a comparison of the property, product yield balance, catalyst performance information including the type of catalyst, and (b) the user performance information;
Generating an FCC device including a step of calculating a production amount of each product obtained for each of at least one kind of catalyst using the corrected yield balance calculation function based on the scheduled operation condition A method of providing the yield of goods to the terminal.

Moreover, according to the present invention,
A program for causing a computer to execute the method, and
A non-transitory computer readable recording medium recording the above program is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the apparatus and method which provide the yield of a product to a user irrespective of a direct simulation are provided.

It is a system block diagram of the method of providing the yield of the product of the FCC apparatus which concerns on this embodiment to a terminal. It is a flowchart of the method of providing the yield of the product of the FCC apparatus concerning this embodiment to a terminal. It is a figure which shows an example of user performance information. It is a figure which shows an example of a plan driving | running condition. It is a figure which shows an example of the yield of the calculated product. It is a flowchart which determines whether the yield of the calculated product is in the range of a constraint condition. It is a figure which shows an example of a constraint condition.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a system configuration diagram of a method for providing a terminal with a product yield of an FCC device according to the present embodiment. The device (hereinafter, simply referred to as device 1) obtains the product yield of the FCC device according to the present embodiment, obtains the results of the user's FCC device, the planned operating conditions, and the like. The product yield obtained when the user's FCC device is operated is provided to the terminal.

  As illustrated in FIG. 1, the apparatus 1 includes a main server 20 and a data server 30. The main server 20 and the data server 30 are communicably connected. The main server 20 and the data server 30 may be integrated, or may be configured separately.

  The device 1 is connected to a terminal 10 (terminal) operated by a user via a network 40. The terminal 10 and the main server 20 may be connected via a dedicated line or may be connected via an internet line. The terminal 10 has a display device integrally or separately. The terminal is an information processing device such as a computer, a tablet terminal, or a mobile phone owned by the user. The terminal may be an information processing device that is not owned by the user. For example, it may be an information processing device to which a user has logged in. The information processing device includes a processor, a storage unit that stores computer-readable instructions, and a display device.

  The main server 20 may be composed of a single server or a plurality of servers. The main server 20 includes a processor 21 and a storage unit 22 that stores computer-readable instructions. The processor 21 reads out the computer readable instructions stored in the storage unit 22 and executes a method of providing the terminal with the yield of the product of the FCC device described in detail below.

  The data server 30 is composed of a recording device such as a hard disk. The data server 30 includes a bench plant database (hereinafter referred to as a bench plant DB) 31 and a user database (hereinafter referred to as a user DB) 32. The bench plant DB 31 has reference performance information. The user DB 32 has a user ID and password registered by the user, user performance information, and constraint conditions. Each information recorded in the user DB 32 and the bench plant DB 31 will be described later.

FIG. 2 is a flowchart of the method according to the present embodiment.
As shown in FIG. 2, the main server 20 executes a user login process (step S01). The main server 20 displays a screen prompting the terminal 10 to input a user ID and password. The terminal 10 transmits the user ID and password input by the user to the main server 20. The main server 20 acquires this user ID and password. The main server 20 determines whether or not the acquired user ID and password match the user ID and password registered in the user DB 32. If the two match, the main server 20 determines that a specific user is logged in and proceeds with subsequent processing.

  When the login process is completed, the main server 20 determines whether or not there is user record information in the user DB 32 (step S02). The main server 20 inquires whether there is user performance information of the user who has logged into the user DB 32.

  If the user has registered user performance information in the user DB 32 in advance, or if a user who has already used this method has logged in to the main server 20, the user performance information is recorded in the user DB 32. Has been. When the main server 20 inquires whether or not the user DB 32 has the user record information, and determines that the main server 20 has the user record information in the user DB 32 (step S02: Yes), the main server 20 receives the user from the user DB 32. Is read out (step S03).

  On the other hand, there may be cases where there is no user record information in the user DB 32, such as in the case of a new user. If the main server 20 determines that there is no user record information in the user DB 32 (step S02: No), the main server 20 displays a screen that prompts the terminal 10 to input the user record information. The terminal 10 transmits user result information input by the user to the main server 20. The main server 20 acquires the transmitted user record information (step S04) and writes it in the user DB 32.

  Subsequently, the main server 20 reads reference performance information from the bench plant DB 31 (step S05). The main server 20 corrects the yield balance calculation function based on the comparison between the reference performance information and the user performance information (step S06).

  The performance information is information as to what yield the product was obtained when operating a certain FCC apparatus under what operating conditions. The performance information in the user's FCC device is referred to as user performance information, and the performance information in the bench plant is referred to as reference performance information. The bench plant is an FCC apparatus that has a track record of evaluating or operating various catalysts, and examples include a research evaluation plant. Various information obtained when the bench plant is operated under various operating conditions is reference performance information.

FIG. 3 shows an example of user performance information. As shown in FIG. 3, the performance information includes at least information on the operating conditions and the yield of the obtained product. The performance information includes at least the flow rate of the feedstock, the properties of the feedstock, the type of catalyst, and the product yield balance.
The operating conditions included in the performance information include the feed flow rate of the feedstock to the FCC unit, the feedstock density, the feedstock residual carbon concentration (hereinafter also referred to as the residual coal concentration), the type of catalyst, and feedstock that contains multiple feedstocks. In the case where it is composed of, the ratio, the density of each raw material, the residual coal concentration, etc. are included. Moreover, the density of each obtained product and the production amount of each obtained product are included as information (product yield balance) related to the obtained product yield included in the performance information.

(Yield balance calculation function)
Based on the vast amount of actual information obtained by the bench plant, it is possible to statistically grasp that a product can be obtained with a predetermined yield balance from the types of feedstock and catalyst having a specific flow rate and properties. The yield balance calculation function can be derived from the relationship between the properties of the feedstock of the bench plant, the feed flow rate of the feedstock, the catalyst type, and the yield of the obtained product. In other words, the yield balance calculation function is a function that represents the relationship between the operating conditions such as the feedstock, flow rate, properties, and catalyst type, and the yield of the product obtained by the FCC apparatus.

For example, when a feedstock having a certain composition α is supplied to a bench plant with a flow rate Q1 and a catalyst A, flow rates a1, b1, and c1 are obtained for the product fractions A, B, and C, respectively. It is also assumed that when a raw material oil having a certain composition β is supplied to an FCC apparatus of a bench plant with a flow rate Q2 and a catalyst B, flow rates a2, b2, and c2 are obtained for the product fractions A, B, and C, respectively. The relationship between the production amount of each product according to the properties, flow rate, and catalyst of such raw material oil is a yield balance calculation function. A huge amount of data is accumulated in the bench plant DB 31 regarding the relationship between the amount of each product produced according to the properties, flow rate, and catalyst of the raw material oil.
Therefore, if the properties, flow rate, and catalyst of the feedstock are input, the yield of each product obtained in the bench plant can be easily predicted using the yield balance calculation function.

  However, since the user's FCC device is different from the bench plant in size, shape, pipe length, etc., even if the yield balance calculation function obtained in the bench plant is used as it is, the user's FCC device is used. It is impossible to accurately predict the yield of the product obtained in (1). However, the relationship between the flow rate and properties of the feedstock in the user's FCC apparatus and the product yield balance of each product has a certain degree of correlation with those in the bench plant.

  Therefore, the present inventor corrects the yield balance calculation function obtained from the bench plant for the user's FCC device, thereby obtaining the yield of the product obtained by the user's FCC device from the flow rate and properties of the feedstock. It was found that can be easily predicted.

(Method for correcting the yield balance calculation function)
For example, if the total production amount of each product of the user's FCC device with respect to the flow rate of the raw material oil is 100 times the total production amount in the bench plant, the total production amount of the product will be 100 times as a whole. The yield balance calculation function is corrected. Further, when the product of the user's FCC apparatus consists of three fractions A, B, and C, the amount of product produced in the bench plant for fractions A, B, and C is 100 times and 95 times, respectively. If it is 103 times (if it is, the yield balance calculation function is corrected so as to obtain a yield corresponding thereto. However, here, a simplified model is described, and actually the user is explained. Various corrections are made according to the operating conditions of the FCC apparatus.

  After correcting the yield balance calculation function as described above, the main server 20 stores the corrected function in the user DB 32 as a user yield balance calculation function.

  Next, the main server 20 acquires planned operation conditions from the terminal 10 (step S07). The scheduled operation conditions are various conditions that the user intends to set when operating his / her FCC device. For example, when the user wants to change the raw material oil, information including the supply flow rate of the raw material oil to be changed and its properties is input as the scheduled operation condition. Alternatively, the user is currently using the catalyst “BASE”, but if the user wants to know what product yield can be obtained using the catalyst “A”, the user can select the type of catalyst as the planned operating condition. Information including “A” is input as the scheduled operation condition.

  FIG. 4 shows an example of planned operating conditions. As shown in FIG. 4, the scheduled operating conditions include at least the flow rate of the feedstock and the density of the feedstock. In addition to this, the scheduled operating conditions may include the residual coal concentration of the raw material oil (in the case of processing a plurality of raw materials, the residual coal concentration of each raw oil), the type of catalyst, and the like.

  As described above, the main server 20 acquires the scheduled operation condition and the user yield balance calculation function. The main server 20 calculates the flow rate of the product obtained when the user's FCC device is operated under the planned operation condition by applying the planned operation condition to the user yield balance calculation function (step S8). The main server 20 may transmit the calculated product flow rate to the terminal 10.

  Next, the main server 20 transmits the calculated production amount of the product to the terminal 10 and causes the display device of the terminal 10 to display the production amount of each product. FIG. 5 is an example of a screen that displays the calculation result on the display unit of the terminal 10. As shown to (a) of FIG. 5, the production amount of each product is displayed. At this time, it is preferable to display the calculated production amount of each product together with the inputted scheduled operating conditions. In this example, the production amount of each product is displayed as the production amount per 30 days. In addition, although the example displayed by volume display is shown in FIG. 5, you may display by weight display. Moreover, the unit of the quantity used by each calculation mentioned above may be handled by volume, and may be handled by weight.

  As described above, the apparatus 1 and the method for providing the product yield of the FCC apparatus according to the present embodiment can quickly provide the product yield to the user by a simple calculation method without using the direct simulation. Thereby, since the yield of the product according to the catalyst can be easily predicted, it is easy to change the catalyst so that a desired product yield can be obtained while operating the FCC apparatus. Or, to provide the user with the product yield immediately after changing the feedstock different from the current situation to the FCC unit (changing the properties of the feedstock) or changing the feed flow rate of the feedstock. be able to. The user can easily grasp the yield of these products, and the user can easily drive the FCC apparatus to the user's preference.

As described above, according to the method of the present embodiment, the production amount of each product is calculated based on the yield balance calculation function created based on the results obtained in the bench plant. Compared with so-called direct simulation, which is performed based on device shape data, reaction model, and the like, this method has a remarkably low calculation load.
Therefore, after calculating the production amount of each product when the catalyst A scheduled by the user is set as the scheduled operation condition, or simultaneously, the FCC apparatus is operated using the catalyst B other than the catalyst A selected by the user. You may comprise so that the production amount of each product obtained in that case may also be calculated. FIG. 5B also shows the amount of each product produced when the catalyst B is set to the planned operating conditions. Thus, by displaying the production amount of each product for both the case of using catalyst A and the case of using catalyst B, the degree of freedom of catalyst selection by the user can be increased.

  When the type of catalyst input by the user as the user performance information is different from the type of catalyst input as the scheduled operation condition, the product yield balance may fluctuate greatly. Therefore, the main server 20 may execute the flow shown in FIG. 6 after step S08.

  FIG. 6 is a flowchart for determining whether or not the calculated product generation amount is within the range of the constraint condition. As shown in FIG. 6, the main server 20 determines whether or not there is a constraint condition in the user DB 32 following step S08 (step S10). If there is a constraint condition in the user DB 32 (step S10: Yes), the main server 20 acquires the constraint condition from the user DB 32 (step S11). When the user DB 32 has no constraint condition (step S10: No), the main server 20 acquires the constraint condition from the terminal 10 (step S12). The main server 20 causes the terminal 10 to display a prompt for input of the constraint condition. The terminal 10 transmits the input constraint condition to the main server 20. The main server 20 acquires the constraint condition transmitted from the terminal 10.

  FIG. 7 shows an example of the constraint condition. The constraint condition is, for example, the maximum pumping flow rate for obtaining each product shown in FIG. When the feedstock is passed through the catalyst, fractions such as Dry gas, C3, and C4 are produced from the feedstock. In the FCC apparatus, a pump for taking out these fractions is provided for each fraction.

  For example, user A may be less interested in C3 and user B may be more interested in C3. In this case, the maximum extraction flow rate of the user A's C3 pump may be lower than the maximum extraction flow rate of the user B's C3 pump. Thus, the maximum withdrawal flow rate of each fraction pump may vary from user to user.

  For example, it is assumed that the maximum extraction flow rate of the user A's C3 pump is 0.5 [10,000 kL / 30 days] and the maximum extraction flow rate of the user B's C3 pump is 1.0 [10,000 kL / 30 days]. . When the flow rate of C3 of the product calculated by the user yield balance calculation function under a certain operating condition is 0.8 [10,000 kL / 30 days], it is determined that the simulation result is applicable to the user B. However, the simulation result is not applicable to the user A.

Therefore, as shown in FIG. 6, the main server 20 determines, for each calculated product, whether the flow rate is within the range of the restriction condition (step S13). If the production amount of all products is within the range of the constraint condition (step S13: Yes), it is determined that the calculated production amount of the product is in accordance with the user's FCC device (step S14). .
However, if the production amount of a certain product is outside the range of the constraint condition (step S13: No), it is determined that the calculated production amount of the product is not suitable for the user's FCC apparatus and is inappropriate. (Step S15).
For example, in order to make it easier for the user to understand which fractions are hindering, only the flow rate of inappropriate fractions is displayed as “*” in the display of FIG. It may be displayed as it is.

Alternatively, if it is determined that at least one fraction is inappropriate, the flow rate of all fractions may be displayed as “*” in the display of FIG. 5 because the entire simulation is inappropriate.
Alternatively, the main server 20 may be configured to calculate the production amount of the product for each catalyst obtained within the range of the constraint condition based on the constraint condition of the user's FCC device. Specifically, the scheduled operation conditions (for example, the processing amount) may be adjusted so that the production amounts of all the products are within the range of the constraint conditions. Thereby, it is possible to provide a calculation result more suited to the user's FCC device.

  In the above-described embodiment, the maximum extraction flow rate of each fraction pump is exemplified as the constraint condition, but the constraint condition is not limited to this. The constraint condition is at least one of the specifications of the FCC apparatus and the conditions outside the operable range, such as the maximum extraction flow rate of the extraction pump for each fraction and the maximum supply amount of air to the catalyst regeneration tower.

  Although the embodiment of the present invention has been described above, it goes without saying that the technical scope of the present invention should not be construed in a limited manner by the description of this embodiment. This embodiment is merely an example, and it is understood by those skilled in the art that various modifications can be made within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and the equivalents thereof.

1 apparatus 10 terminal 20 main server 21 processor 22 storage unit 30 data server 31 bench plant database 32 user database 40 network

Claims (6)

Using a terminal and a server connected to the terminal via a network, the product yield of a fluid catalytic cracking device (FCC device) that obtains a product from raw material oil by fluid catalytic cracking (Fluid Catalytic Cracking) Proposed device, the device comprising:
A processor and a storage unit for storing computer-readable instructions;
When the computer-readable instructions are executed by the processor, the device
User performance information including at least feedstock flow rate, feedstock properties, product yield balance, catalyst type as a result of the user's FCC device, and at least feedstock flow rate, feedstock Obtaining planned operating conditions including properties;
The yield balance calculation function for calculating the production amount of each product based on at least the feed oil flow rate, the feed oil properties, the product yield balance, and the type of catalyst, (a) at least the feed oil flow rate and the feed oil in the bench plant Correction based on a comparison of the property, product yield balance, catalyst performance information including the type of catalyst, and (b) the user performance information;
And a step of calculating a production amount of each product obtained for each of at least one or more types of catalyst using the corrected yield balance calculation function based on the scheduled operation condition. A device that provides the product yield of an FCC device.   The apparatus according to claim 1, wherein the processor calculates a yield of a product for each catalyst obtained within the range of the restriction condition based on the restriction condition of the FCC device of the user.   The apparatus according to claim 2, wherein the constraint condition is at least one of a specification of the FCC apparatus and a condition outside the operable range associated therewith. A method for providing a product yield of a fluid catalytic cracking device (FCC device) that obtains a product from a raw oil by fluid catalytic cracking via a network to a terminal,
User performance information including at least feedstock flow rate, feedstock properties, product yield balance, catalyst type as a result of the user's FCC device, and at least feedstock flow rate, feedstock Obtaining planned operating conditions including properties;
The yield balance calculation function for calculating the production amount of each product based on at least the feed oil flow rate, the feed oil properties, the product yield balance, and the type of catalyst, (a) at least the feed oil flow rate and the feed oil in the bench plant Correction based on a comparison of the property, product yield balance, catalyst performance information including the type of catalyst, and (b) the user performance information;
Generating an FCC device including a step of calculating a production amount of each product obtained for each of at least one kind of catalyst using the corrected yield balance calculation function based on the scheduled operation condition A method of providing the yield of goods to the terminal.   A program for causing a computer to execute the method according to claim 4.   A non-transitory computer-readable recording medium on which the program according to claim 5 is recorded.

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