CN113033950A - Method for establishing petrochemical industry volatile organic compound source component spectrum based on multiple emission source items - Google Patents
Method for establishing petrochemical industry volatile organic compound source component spectrum based on multiple emission source items Download PDFInfo
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Abstract
The invention discloses a method for establishing a volatile organic compound source component spectrum in petrochemical industry based on a plurality of emission source items, which comprises the following steps: acquiring at least one emission source item for emitting volatile organic compounds; calculating the emission amount of the volatile organic compounds corresponding to each emission source item; acquiring a corresponding emission weight according to the emission amount of each emission source item; acquiring the types of the emitted volatile organic compounds from a target enterprise; determining at least one representative component according to the volatile organic compound type; acquiring a plurality of groups of volatile organic compound samples which correspond to a plurality of emission source items one by one; acquiring a single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples according to each group of volatile organic compound samples to obtain a plurality of single source component spectrums; and acquiring a comprehensive source component spectrum of the volatile organic compounds emitted by the target enterprise according to the plurality of single source component spectrums corresponding to the plurality of emission source items and the plurality of corresponding emission weights. The method can accurately reflect the VOCs source composition spectrum characteristics in the petrochemical industry.
Description
Technical Field
The application relates to the field of establishing a method for a Volatile Organic Compounds (VOCs) source component spectrum in the industrial Volatile Organic Compounds (VOCs), in particular to an establishing method for a Volatile Organic Compounds (VOCs) source component spectrum in the petrochemical industry based on an emission source item.
Background
The establishment of the manmade source VOCs component spectrum in China is the basis for compiling VOCs species emission lists and realizing scientific formulation and accurate implementation of national and industrial reaction activity-based control strategies. The petrochemical industry is one of key contributors of artificial emission in China and is also key work of emission reduction of industrial source VOCs for a long time, and the establishment of the specification of the VOCs source component spectrum has important significance for implementing deep emission reduction in the industry.
The existing establishment methods of VOCs component spectrums in the petrochemical industry mainly comprise two types. The first method, which takes petrochemical enterprises as a union, pays attention to the pollution characteristics of VOCs nearby. Generally, researchers set sampling points around petrochemical complexes, measure the environmental concentration and component characteristics of the VOCs through an online or offline monitor, characterize daily and seasonal changes thereof, conduct pollution source analysis or strong inversion of pollution sources, and evaluate environmental impact and health risks. However, the method only focuses on the VOCs emission of the whole petrochemical enterprises, and does not consider the VOCs composition spectrum emission characteristics of the internal emission sources and specific process units of the enterprises at all. The second method is to take different process units in a petrochemical enterprise as specific objects, such as process units of dynamic and static sealing point leakage, storage tank, loading, wastewater treatment and the like, and research the VOCs source composition spectrum characteristics of the different process units of the enterprise. However, for the petrochemical industry of a plurality of complicated VOCs emission source items, researchers have two disadvantages when applying the method; firstly, various complex devices and facilities exist in a large petrochemical plant, and due to the lack of comprehensive research on species morphology in petrochemical complexes, the discharge of some VOCs can not be identified or omitted, so that the VOCs discharge research unit is incomplete, is only a part of the petrochemical industry, and even does not consider some important contribution units. Secondly, the VOCs component spectrum in the industry is mostly acquired by performing arithmetic mean after normalizing all process unit samples, and the contribution of different discharge amount of each process unit to the VOCs component spectrum is not considered.
Therefore, the establishment of the VOCs component spectrum in the petrochemical industry based on the emission source item at present is not effectively combined with the actual emission of VOCs emission sources in all links of an enterprise, the emission intensity of VOCs of different emission sources is neglected, and the characteristics of the VOCs source component spectrum in the petrochemical industry cannot be accurately reflected, so that in the field, research on a standardized establishment method of the VOCs source component spectrum in the petrochemical industry needs to be urgently developed, thereby providing important technical support for further deep, scientific and accurate emission reduction of the industry.
Disclosure of Invention
The invention aims to provide a method for establishing a VOCs source component spectrum in the petrochemical industry based on a plurality of emission source items, which aims to solve the problems that: the problem of how to accurately reflect the characteristics of the VOCs source composition spectrum in the petrochemical industry.
The invention is realized by the following technical scheme:
the invention provides a method for establishing a VOCs source component spectrum based on an emission source item, which comprises the following steps:
the method for establishing the volatile organic compound source component spectrum in the petrochemical industry based on a plurality of emission source items is characterized by comprising the following steps of:
acquiring at least one emission source item for emitting volatile organic compounds according to an industrial standard;
calculating the emission amount of the volatile organic compounds corresponding to each emission source item;
acquiring a corresponding emission weight according to the emission amount of each emission source item;
obtaining the types of the volatile organic compounds to be discharged from the similar discharge sources;
determining at least one representative component according to the volatile organic compound type;
acquiring a plurality of groups of volatile organic compound samples which correspond to a plurality of emission source items one by one;
acquiring a single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples according to each group of volatile organic compound samples to obtain a plurality of single source component spectrums;
acquiring a comprehensive source component spectrum of the volatile organic compounds emitted by the target enterprise according to a plurality of single source component spectrums corresponding to a plurality of emission source items and a plurality of corresponding emission weights;
wherein obtaining the single-term source composition spectrum of each emission source term comprises: analyzing the content of each representative component in the at least one representative component in each volatile organic sample to obtain at least one representative component content; and obtaining a corresponding single source component spectrum according to the content of the at least one representative component.
In some embodiments, the at least one emission source item is selected from the group consisting of a leakage item of a dynamic and static sealing point of the equipment, an organic liquid storage and blending volatilization loss item, an organic liquid loading and unloading volatilization loss item, a waste water gathering and transportation, a storage, a treatment and disposal process escape item, a combustion flue gas emission item, a process organized emission item, a process unorganized emission item, a sampling process emission item, a torch emission item, an abnormal working condition (including start-up and maintenance) emission item, a cooling tower and circulating water cooling system release item, and an accident emission item.
In some embodiments, the step of calculating the emission amount of the volatile organic compound corresponding to each emission source item includes:
determining at least one production unit corresponding to each emission source item;
determining the emission E of volatile organic compounds per production unitij；
Obtaining the emission E of the volatile organic compounds corresponding to each emission source item according to the total emission of the volatile organic compounds of the at least one production unitiThe calculation formula is as follows:
Ei＝∑jEijformula (I);
in equation (one), i is the number of a certain ranking source item, and j is the number of a certain production unit of a certain ranking source item.
In some embodiments, the step of obtaining the corresponding emission weight according to the emission amount of each emission source item includes:
obtaining the total emission sigma of the volatile organic compounds according to the emission of the volatile organic compounds corresponding to each emission source itemiEi；
The emission weight WiEmission amount E of volatile organic compounds equal to corresponding emission source itemiSigma of the total emission of the volatile organic compoundsiEiThe calculation formula is as follows:
Wi＝Ei÷∑iEix 100% of formula (II);
in the formula (two), i is the number of a certain ranking source item,
when the weight of the emission amount of the VOCs of a certain emission source item is less than 1%, the emission amount or the component spectrum contribution of the emission source item can be not considered, and the weight is carried out according to the total emission amount after the emission source item is removed.
In some embodiments, the step of obtaining a plurality of sets of volatile organic compound samples corresponding to a plurality of emission source items in a one-to-one manner includes:
obtaining a volatile organic compound sample of each production unit in at least one production unit corresponding to each emission source item to obtain a group of volatile organic compound samples;
and counting a group of volatile organic matter samples corresponding to each emission source item to obtain a plurality of groups of volatile organic matter samples corresponding to a plurality of emission source items one by one.
In some embodiments, a single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples is obtained according to each group of volatile organic compound samples, so as to obtain a plurality of single source component spectra; the method comprises the following steps:
calculating the content of each representative component in each volatile organic sample in each group of volatile organic samples respectively;
and acquiring a single source component spectrum of the emission source item corresponding to each group of volatile organic compound samples to obtain a plurality of single source component spectrums.
In some embodiments, the step of obtaining a single source composition spectrum of the emission source item corresponding to each set of the volatile organic compound samples; further comprising:
acquiring the weight of each production unit in each emission source item;
Wij＝Eij÷∑jEijx 100% of formula (III),
in the formula (III), EijDischarge of VOCs for a certain production unit, WijI is the number of a certain release source item, and j is the number of a certain production unit of a certain release source item;
obtaining a corresponding production unit source component spectrum SP according to the content of each representative component in the volatile organic compound sample corresponding to each production unitij；
And acquiring a corresponding single-item source component spectrum according to the weight of all production units corresponding to each emission source item and the source component spectrums of all production units.
SPi＝∑j(SPij×Wij) Formula (IV);
in the formula (IV), SPijSource component spectrum, W, for a certain production unitijTo correspond to lifeThe weight of a production unit, i is the number of a certain release source item, and j is the number of a certain production unit of a certain release source item;
the discharge of the VOCs of the source items released by the cooling tower and the circulating water cooling system mainly comes from the leakage of a material heat exchange device in the process, so that if the VOCs components in the source items discharged are measured unconditionally, the source component spectrum of the source items leaked at the dynamic and static sealing points of the equipment can be approximately obtained by the source spectrum of the discharge source.
In some embodiments, the step of obtaining a comprehensive source component spectrum of the volatile organic compound emitted by the target enterprise according to a plurality of single source component spectrums corresponding to a plurality of emission source items and a plurality of corresponding emission weights includes:
the comprehensive source composition spectrum SP is a plurality of single-term source composition spectrums SP corresponding to the plurality of emission source itemsiAnd a corresponding plurality of emission weights WiThe product of (a) is then summed, formulated as:
SP＝∑i(SPi×Wi) Formula (V)
In equation (five), i is the number of a certain ranking source item.
Compared with the prior art, the invention can at least realize the following beneficial effects:
when the VOCs source component spectrum of the target enterprise is established, on the basis of identifying VOCs emission source items of the target enterprise, the emission weight of each emission source item is calculated according to the VOCs emission amount of each emission source item, and finally the product of the source component spectrum of each emission source item and the corresponding emission weight is summed to obtain the VOCs comprehensive source component spectrum of the target enterprise based on a plurality of emission source items. Compared with the prior art that the comprehensive source component spectrum is obtained by performing arithmetic mean after normalizing all process unit samples, the method is effectively combined with the actual discharge amount of VOCs discharge sources in each link of an enterprise, and the VOCs comprehensive source component spectrum established based on a plurality of discharge source items can accurately reflect the VOCs source component spectrum characteristics in the petrochemical industry.
Drawings
FIG. 1 is a flow chart of a petrochemical industry VOCs source composition spectrum establishment method based on a plurality of emission source terms in some embodiments of the present invention;
FIG. 2 is a flowchart of the steps for calculating the emission amount of the volatile organic compounds corresponding to each emission source item according to some embodiments of the present invention;
FIG. 3 is a flow chart of the steps for obtaining the corresponding emission weight according to the amount of emission of each emission source term in some embodiments of the present invention;
FIG. 4 is a flowchart of the steps for obtaining multiple sets of volatile organic sample data corresponding one-to-one to multiple emission source items in some embodiments of the present invention;
FIG. 5 is a flowchart illustrating the steps of obtaining a plurality of individual source composition spectra from each set of volatile organic sample samples for each emission source term corresponding thereto according to some embodiments of the present invention;
FIG. 6 is another flow chart of steps for obtaining individual source composition spectra for emission source terms corresponding to each set of volatile organic samples in some embodiments of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
The terms "first", "second", "third", "fourth" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of the feature. It is also noted that, in the present application, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. Further, the directions or positional relationships indicated by "upper", "lower", "top", "bottom", "inner", "outer", etc. are directions or positional relationships shown on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or apparatus referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "include" and "provided," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In addition to the foregoing, it should be emphasized that reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Fig. 1 is a flow chart of a method for establishing a source composition spectrum of VOCs in the petrochemical industry based on a plurality of emission source items according to the embodiment, in which fig. 1:
s101, acquiring at least one emission source item of volatile organic compounds emitted by a target enterprise according to an industrial standard.
For step S101, in some embodiments, the target enterprise refers to VOCs emission source items totaling 9 items, i.e., 9. Including equipment dynamic and static seal point leakage (S1); and organic liquid storage and reconciliation of volatility losses (S2); and organic liquid loading and unloading volatilization losses (S3); and waste water gathering, storage, disposal process dissipation (S4); and combustion flue gas emissions (S5); and organized emissions of the process (S6); and a sampling process discharge (S7); and flare discharge (S8); and a cooling tower; and the circulating water cooling system is released (S9).
And S102, calculating the emission amount of the volatile organic compounds corresponding to each emission source item.
And S103, acquiring corresponding emission weight according to the emission amount of each emission source item.
And S104, acquiring the types of the emitted volatile organic compounds from the target enterprise.
Through literature research and on-site research on target enterprise Organic materials, production processes and the like, volatile Organic Compounds emitted by petroleum refining enterprises are mainly hydrocarbon substances, and the types of the volatile Organic Compounds of the target enterprises at least comprise Photochemical Association Monitoring states (PAMS for short, Chinese name of Photochemical evaluation Monitoring station) and Toxic Organic Compounds (TO 15 for short, wherein 15 is a code and Chinese name of Toxic Organic Compounds) standard gas components.
And S105, determining at least one representative component according to the volatile organic compound type.
The petrochemical industry generally takes PAMS and TO15 standard gas components as representative components, therefore, 57 PAMS and 25 TO15 mixed standard gas components are selected as representative components of the enterprise VOCs source composition spectrum, and the specific components of the analysis and test are detailed in Table 1.
TABLE 1 VOCs Source composition spectra representative Components of Petroleum refining enterprises
And S106, acquiring multiple groups of volatile organic compound samples corresponding to the emission source items one by one.
Collecting only the emission weight WiThe VOCs samples with the emission source items larger than 1% are sampled by adopting a Suma tank or an air bag with a flow limiting valve. The sampling point is located about 1.5m apart from ground and is close to each source item VOCs discharge environment or production unit and corresponds the device department and gather respectively, and the sampling of organizing is gathered at the discharge port, and single sample acquisition time is about 10min, and 2 ~ 3 air pockets, 1 of suma jar.
And S107, acquiring a single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples according to each group of volatile organic compound samples to obtain a plurality of single source component spectrums.
Before calculating the single-source composition spectrum, each of the obtained volatile organic compound samples needs to be tested for the percentage content of the representative component, and the specific test methods and conditions are as follows:
according TO the method of the American TO-15, volatile organic compounds in the waste gas are determined by a silanization tank/air bag-atmosphere concentrator-gas chromatography mass spectrometry method. In the method, a sample is firstly pre-treated by adopting preconcentration (Entech 7100), water, carbon dioxide, nitrogen and the like are removed by two-stage cold hydrazine, then the sample is subjected to cryogenic focusing, then high-purity helium is injected into a chromatographic column for separation, and the sample is analyzed by utilizing a gas chromatography-mass spectrometer (Agilent 7890A GC-5975 CMS). NMHC below C4 can be quantified by FID detector after GC separation.
Relevant parameters of the instrumental analysis method: (1) a chromatographic column: DB-1(60m 0.32mm 1 μm, Agilent Technology USA); HP PLOT-Q (30m 0.32mm 20 μm, Agilent Technology, USA). (2) Temperature rising procedure: the initial temperature is 35 deg.C, the temperature is maintained for 3min, then the temperature is increased to 120 deg.C at 5 deg.C/min, and finally the temperature is increased to 250 deg.C at 10 deg.C/min, and the temperature is maintained for 20 min. (3) Carrier gas: he, 1.0mL/min (column flow rate). (4) MSD: EI mode, selective ion scanning. (5) FID: temperature: 280 ℃, H2 flow: 40 mL/min; dry cleaning air flow rate: 400 mL/min; n2: flow rate: 15 mL/min;
and S108, acquiring a comprehensive source component spectrum of the volatile organic compounds emitted by the target enterprise according to the plurality of single source component spectrums corresponding to the plurality of emission source items and the plurality of corresponding emission weights.
In this embodiment, when the target enterprise VOCs source component spectrum is established, on the basis of identifying the target enterprise VOCs emission source items, the emission weight of each emission source item is calculated according to the VOCs emission amount of each emission source item, and finally, the product of the source component spectrum of each emission source item and the corresponding emission weight is summed to obtain the target enterprise VOCs integrated source component spectrum based on a plurality of emission source items. Compared with the prior art that the comprehensive source component spectrum is obtained by performing arithmetic mean after normalizing all process unit samples, the method effectively combines the actual discharge amount of VOCs discharge sources in each link of an enterprise, and can accurately reflect the VOCs source component spectrum characteristics in the petrochemical industry based on the VOCs comprehensive source component spectrum established by a plurality of discharge source items.
TABLE 2 VOCs discharge amount and discharge weight of each production unit leaked from dynamic and static sealing points of petroleum refining enterprise equipment
| Unit code | Specific Unit name | VOCs emission Eij (ton) | Weight Wij(％) |
| S11 | Distillation unit | 8.47 | 11.64 |
| S12 | Styrene unit | 3.69 | 5.07 |
| S13 | Reforming unit | 16.55 | 22.74 |
| S14 | Catalytic unit | 15.32 | 21.05 |
| S15 | Hydrogenation unit | 6.94 | 9.53 |
| S16 | Storage tank unit | 7.36 | 10.11 |
| S17 | Sulfur unit | 4.87 | 6.69 |
| S18 | Sewage treatment unit | 1.27 | 1.74 |
| S19 | Polypropylene unit | 8.33 | 11.44 |
| Total up to | 72.79 | 100.00 |
TABLE 3 emission sources and VOCs emissions and emission weights of oil refineries
As shown in fig. 2, a flowchart of the steps of calculating the emission amount of the volatile organic compound corresponding to each emission source item in some embodiments of the present invention is shown in fig. 2:
s201, determining at least one production unit corresponding to each emission source item.
For step S201, in some embodiments, there are 9 production units (as shown in table 2) in which the dynamic and static sealing points of the equipment of the target enterprise leak (S1); organic liquid storage and reconciliation volatilization loss (S2), organic liquid loading and unloading volatilization loss (S3), waste water gathering, storage, treatment process dissipation (S4), combustion flue gas emission (S5), and process organized emission (S6), sampling process emission (S7), flare emission (S8), cooling tower, circulating water cooling system release (S9) each have only one production unit, as shown in table 3.
S202, determining the emission E of volatile organic compounds of each production unitij。
For step S202, according to the national VOCs emission calculation method in the petrochemical industry, the original and auxiliary materials, production processes, treatment facilities and the like of enterprises are combined to calculate the emission amount of volatile organic compounds corresponding to each emission source item, and the emission amount E of volatile organic compounds of each production unitij is shown in tables 2 and 3.
S203, obtaining the emission amount Ei of the volatile organic compounds corresponding to each emission source item according to the total emission amount of the volatile organic compounds of the at least one production unit.
For step S203, the discharge amount of VOCs of the 9 discharge source items of the target enterprise is shown in table 3.
As shown in fig. 3, which is a flowchart of the step of obtaining the corresponding emission weight according to the emission amount of each emission source item in the present embodiment, in fig. 3:
s301, obtaining the total emission amount of the volatile organic compounds according to the emission amount of the volatile organic compounds corresponding to each emission source item.
For step S301, in some embodiments, the total emission of VOCs of the target enterprise is equal to the 9 emission sources mentioned aboveVOCs emission E of itemiThe results are shown in Table 3.
S302, the emission weight WiEmission amount E of volatile organic compounds equal to corresponding emission source itemiA ratio to the total emission of volatile organic compounds.
For step S302, the emission weight Wi corresponding to each of the 9 emission source items of the target enterprise is calculated by the following formula:
Wi＝Ei÷∑iEix 100% of formula (one);
in the formula (one), i is the number of a certain release source item, and j is the number of a certain production unit of a certain release source item;
the calculation results are shown in table 3, wherein the discharge weights of VOCs of the four types of discharge source items of 9 discharge source items, combustion flue gas discharge (S5), and process organized discharge (S6), and sampling process discharge (S7), and flare discharge (S8), are less than 1%, thereby eliminating the discharge amount of the discharge source items, and recalculating the discharge weight W of the remaining 5 discharge source itemsi. The emission weight WiThe recalculation results are shown in table 3, respectively.
As shown in fig. 4, which is a flowchart of the steps of acquiring multiple sets of volatile organic compound samples corresponding to multiple emission source items one to one in this embodiment, in fig. 4:
s401, obtaining the volatile organic compound sample of each production unit in at least one production unit corresponding to each emission source item to obtain a group of volatile organic compound samples.
For step S401, in some embodiments, collecting device dynamic and static seal point leakage of the target enterprise (S1); and organic liquid storage and reconciliation of volatility losses (S2); and organic liquid loading and unloading volatilization losses (S3); and waste water gathering, storage, disposal process dissipation (S4); and a cooling tower; and the circulating water cooling system releases (S9) the voc samples from each production unit in the 5 emission source items, resulting in 5 groups of VOCs samples.
S402, counting a group of volatile organic matter samples corresponding to each emission source item to obtain a plurality of groups of volatile organic matter samples corresponding to a plurality of emission source items one to one.
For step S402, 9 VOCs samples are obtained by leakage (S1) of dynamic and static sealing points of the target enterprise equipment, and the organic liquid in the rest 4 groups is stored and regulated to volatilize and lose (S2); and organic liquid loading and unloading volatilization losses (S3); and waste water gathering, storage, disposal process dissipation (S4); and a cooling tower; and the circulating water cooling system release (S9) each obtained 1 sample of VOCs.
As shown in fig. 5, which is a flowchart of the step of obtaining a plurality of single source composition spectrums according to the single source composition spectrum of each emission source item corresponding to each set of volatile organic compound samples in this embodiment, in fig. 5:
and S501, in each group of volatile organic compound samples, respectively calculating the content of each representative component in each volatile organic compound sample.
For step S501, in some embodiments, the organic liquid storage and reconciliation of volatility losses for the target enterprise (S2); and organic liquid loading and unloading volatilization losses (S3); and waste water collection, storage, disposal process dissipation (S4) with only one sample of VOCs per group, the calculations are shown in table 4. The results of 9 samples of device dynamic and static seal point leaks (S1) for the target enterprise are calculated as shown in table 5.
S502, obtaining a single source component spectrum of the emission source item corresponding to each group of volatile organic compound samples to obtain a plurality of single source component spectrums SPi.
For step S502, the organic liquid storage and reconciliation of volatility losses for the target enterprise (S2); and organic liquid loading and unloading volatilization losses (S3); and wastewater gathering, storage, and disposal process escaping (S4) the individual source composition spectra SPi of the 3 emission source terms are equal to the content of each representative component in the respective VOCs sample calculated in step S501.
The method for acquiring the single source component spectrum SPi for the equipment dynamic and static seal point leakage (S1) and the release (S9) of the cooling tower and the circulating water cooling system is specifically described in the following fig. 6.
Fig. 6 is another flowchart of the steps for obtaining the single source composition spectrum of the emission source item corresponding to each set of the voc samples in this embodiment. For equipment dynamic and static seal point leakage (S1) and cooling tower and circulating water cooling system release (S9) related to multiple production units, the acquisition method of the single source component spectrum SPi comprises the following steps:
s601, acquiring the weight of each production unit in each emission source item.
For step S601, in some embodiments, 9 production units in the device dynamic and static seal point leakage (S1) account for the weight W in the discharge source itemij
Wij＝Eij÷∑jEijX 100% of formula (II),
in the formula (II), EijDischarge of VOCs for a certain production unit, WijI is the number of a certain release source item, and j is the number of a certain production unit of a certain release source item; the calculation results are shown in table 2.
S602, obtaining a source component spectrum SP of each production unit according to the content of each representative component in the volatile organic compound sample corresponding to each production unitij。
For step S602, in some embodiments, the source composition spectra SP of 9 production units with equipment leaking at dynamic and static seal points (S1)ijThe calculation results are shown in fig. 5.
S603, acquiring a corresponding single source component spectrum according to the weight of all production units corresponding to each emission source item and the source component spectrums of all production units.
For step S603, in some embodiments, a single source component spectrum SP of device dynamic and static seal point leaks (S1)i：
SPi＝∑j(SPij×Wij) A formula (III);
in the formula (III), SPijSource component spectrum, W, for a certain production unitijI is the number of a certain release source item, and j is the number of a certain production unit of a certain release source item; the calculation results are shown in table 5.
The VOCs (volatile organic compounds) discharged by the cooling tower and the circulating water cooling system mainly come fromThe leakage of the material heat exchange device in the process can be detected, so that if the VOCs components in the discharge source item water are unconditionally detected, the single source component spectrum released by the cooling tower and the circulating water cooling system can be similar to the single source component spectrum leaked from the dynamic and static sealing points of the equipment, namely SP9＝SP1As shown in table 4.
In some embodiments, the integrated source component spectrum SP is a plurality of single-term source component spectra SPiAnd a corresponding plurality of emission weights WiSpecifically, the product of the single source composition spectrum SPi of the 5 emission source items of the target enterprise equipment dynamic and static seal point leakage (S1), the organic liquid storage and harmonic evaporation loss (S2), the organic liquid loading and unloading evaporation loss (S3), the waste water gathering, storage, treatment and disposal process dissipation (S4), the cooling tower, the circulating water cooling system release (S9) and the emission weight Wi is summed, and the calculation result is shown in table 4.
SP＝∑i(SPi×Wi) Formula (IV);
in equation (iv), i is the number of a certain ranking source item.
TABLE 4 VOCs Single-term and Complex-Source component spectra of Petroleum refining Enterprise emission Source terms
TABLE 5 VOCs Source composition spectra (wt.%) of various production units with equipment dynamic and static seal point leaks in oil refineries
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (8)
1. The method for establishing the volatile organic compound source component spectrum in the petrochemical industry based on a plurality of emission source items is characterized by comprising the following steps of:
acquiring at least one emission source item for emitting volatile organic compounds according to an industrial standard;
calculating the emission amount of the volatile organic compounds corresponding to each emission source item;
acquiring a corresponding emission weight according to the emission amount of each emission source item;
acquiring the types of the emitted volatile organic compounds from a target enterprise;
determining at least one representative component according to the volatile organic compound type;
acquiring a plurality of groups of volatile organic compound samples which correspond to a plurality of emission source items one by one;
acquiring a single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples according to each group of volatile organic compound samples to obtain a plurality of single source component spectrums;
acquiring a comprehensive source component spectrum of the volatile organic compounds emitted by the target enterprise according to a plurality of single source component spectrums corresponding to a plurality of emission source items and a plurality of corresponding emission weights;
wherein obtaining the single-term source composition spectrum of each emission source term comprises: analyzing the content of each representative component in the at least one representative component in each volatile organic sample to obtain at least one content; and obtaining a corresponding single source component spectrum according to the at least one content.
2. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items, according to claim 1, wherein the at least one emission source item is selected from a group consisting of equipment dynamic and static sealing point leakage items, organic liquid storage and blending volatilization loss items, organic liquid loading and unloading volatilization loss items, wastewater gathering and transportation, storage, treatment process dissipation items, combustion flue gas emission items, process organized emission items, process unorganized emission items, sampling process emission items, torch emission items, abnormal working condition emission items, cooling tower and circulating water cooling system release items and accident emission items.
3. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items according to claim 1, wherein the step of calculating the emission amount of the volatile organic compound corresponding to each emission source item comprises:
determining at least one production unit corresponding to each emission source item;
determining the emission amount of volatile organic compounds of each production unit;
and acquiring the emission amount of the volatile organic compounds of each corresponding emission source item according to the total emission amount of the volatile organic compounds of the at least one production unit.
4. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items according to claim 1, wherein the step of obtaining the corresponding emission weight according to the emission amount of each emission source item comprises the following steps:
acquiring the total emission of the volatile organic compounds according to the emission of the volatile organic compounds corresponding to each emission source item;
the emission weight is equal to the ratio of the emission amount of the volatile organic compounds corresponding to the emission source item to the total emission amount of the volatile organic compounds.
5. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items according to claim 3, wherein the step of obtaining a plurality of groups of volatile organic compound samples corresponding to the plurality of emission source items in a one-to-one manner comprises the following steps:
obtaining a volatile organic compound sample of each production unit in at least one production unit corresponding to each emission source item to obtain a group of volatile organic compound samples;
and counting a group of volatile organic matter samples corresponding to each emission source item to obtain a plurality of groups of volatile organic matter samples corresponding to a plurality of emission source items one by one.
6. The method for establishing the petrochemical industry volatile organic compound source component spectrum based on the emission source items according to claim 5, wherein the single source component spectrum of each emission source item corresponding to each group of volatile organic compound samples is obtained according to each group of volatile organic compound samples, so that a plurality of single source component spectrums are obtained; the method comprises the following steps:
calculating the content of each representative component in each volatile organic sample in each group of volatile organic samples respectively;
and acquiring a single source component spectrum of the emission source item corresponding to each group of volatile organic compound samples to obtain a plurality of single source component spectrums.
7. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items according to claim 6, wherein the step of obtaining a single source component spectrum of the emission source item corresponding to each group of volatile organic compound samples; further comprising:
acquiring the weight of each production unit in each emission source item;
obtaining a corresponding production unit source component spectrum according to the content of each representative component in the volatile organic compound sample corresponding to each production unit;
and acquiring a corresponding single-item source component spectrum according to the weight of all production units corresponding to each emission source item and the source component spectrums of all production units.
8. The method for establishing a petrochemical industry volatile organic compound source component spectrum based on a plurality of emission source items according to claims 1-7, wherein the step of obtaining a comprehensive source component spectrum of volatile organic compounds emitted by a target enterprise according to a plurality of single source component spectrums corresponding to the plurality of emission source items and a plurality of emission weights corresponding to the plurality of emission source items comprises:
and summing products of the plurality of single-term source component spectrums corresponding to the plurality of emission source terms and the plurality of corresponding emission weights to obtain the comprehensive source component spectrum.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113156055A (en) * | 2021-02-03 | 2021-07-23 | 华南理工大学 | Method for establishing volatile organic compound source component spectrum in petrochemical industry based on emission source item |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105550475A (en) * | 2016-01-25 | 2016-05-04 | 暨南大学 | Unorganized emission model and estimation method for volatile organic compounds in petroleum refining apparatus |
| CN106841087A (en) * | 2017-04-17 | 2017-06-13 | 中国石油化工股份有限公司 | Petrochemical enterprise uncontrollable discharge source VOCS discharges method for measuring and calculating |
| CN107290462A (en) * | 2017-07-31 | 2017-10-24 | 江苏省环境监测中心 | A kind of detection method of uncontrollable discharge volatile organic matter |
| CN108446531A (en) * | 2018-03-08 | 2018-08-24 | 南开大学 | Receptor Si and Al reconstructing method based on actual measurement derived components spectrum and Source apportionment |
| US20180305219A1 (en) * | 2015-10-20 | 2018-10-25 | National Institute Of Advanced Industrial Science And Technology | Oxide semiconductor |
| CN108710604A (en) * | 2018-05-23 | 2018-10-26 | 成都市环境保护科学研究院 | A kind of City-scale high-resolution models emission inventories processing method based on SMOKE models |
| CN110046382A (en) * | 2019-03-06 | 2019-07-23 | 环境保护部环境工程评估中心 | Source Apportionment, device, electronic equipment and the storage medium of atmosphere pollution |
| CN111222216A (en) * | 2018-11-08 | 2020-06-02 | 中国石油化工股份有限公司 | Pollutant source analysis method |
| CN111368401A (en) * | 2020-02-20 | 2020-07-03 | 南开大学 | Tracing method and device for pollution source and storage medium |
| CN112000055A (en) * | 2020-08-30 | 2020-11-27 | 上海市环境科学研究院 | System and method for controlling total amount of volatile organic pollutants |
| CN112034800A (en) * | 2020-08-30 | 2020-12-04 | 上海市环境科学研究院 | Method, system, medium and terminal for calculating unorganized emission of volatile organic pollutants |
-
2021
- 2021-02-03 CN CN202110150288.0A patent/CN113033950B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180305219A1 (en) * | 2015-10-20 | 2018-10-25 | National Institute Of Advanced Industrial Science And Technology | Oxide semiconductor |
| CN105550475A (en) * | 2016-01-25 | 2016-05-04 | 暨南大学 | Unorganized emission model and estimation method for volatile organic compounds in petroleum refining apparatus |
| CN106841087A (en) * | 2017-04-17 | 2017-06-13 | 中国石油化工股份有限公司 | Petrochemical enterprise uncontrollable discharge source VOCS discharges method for measuring and calculating |
| CN107290462A (en) * | 2017-07-31 | 2017-10-24 | 江苏省环境监测中心 | A kind of detection method of uncontrollable discharge volatile organic matter |
| CN108446531A (en) * | 2018-03-08 | 2018-08-24 | 南开大学 | Receptor Si and Al reconstructing method based on actual measurement derived components spectrum and Source apportionment |
| CN108710604A (en) * | 2018-05-23 | 2018-10-26 | 成都市环境保护科学研究院 | A kind of City-scale high-resolution models emission inventories processing method based on SMOKE models |
| CN111222216A (en) * | 2018-11-08 | 2020-06-02 | 中国石油化工股份有限公司 | Pollutant source analysis method |
| CN110046382A (en) * | 2019-03-06 | 2019-07-23 | 环境保护部环境工程评估中心 | Source Apportionment, device, electronic equipment and the storage medium of atmosphere pollution |
| CN111368401A (en) * | 2020-02-20 | 2020-07-03 | 南开大学 | Tracing method and device for pollution source and storage medium |
| CN112000055A (en) * | 2020-08-30 | 2020-11-27 | 上海市环境科学研究院 | System and method for controlling total amount of volatile organic pollutants |
| CN112034800A (en) * | 2020-08-30 | 2020-12-04 | 上海市环境科学研究院 | Method, system, medium and terminal for calculating unorganized emission of volatile organic pollutants |
Non-Patent Citations (3)
| Title |
|---|
| 冯云霞 等: ""石化企业挥发性有机物成分谱构建及溯源解析"", 《石油炼制与化工》, vol. 51, no. 1, pages 92 - 96 * |
| 刘政 等: ""典型钢铁企业挥发性有机物排放量测算及组分特征"", 《中国环境科学》, vol. 40, no. 10, pages 4292 - 4303 * |
| 邓海发;邢传胜;张帅;赵一帆;: "油气处理终端挥发性有机物源项分析及控制措施", 广东化工, no. 14, pages 168 - 169 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113156055A (en) * | 2021-02-03 | 2021-07-23 | 华南理工大学 | Method for establishing volatile organic compound source component spectrum in petrochemical industry based on emission source item |
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