A method for absorbing hydrogen sulfide in oil and gas exploitation, oil and gas environmental protection gathering and transportation

Abstract

The present application relates to oil and gas hydrogen sulfide absorption technical field, especially to a kind of for oil and gas exploitation, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and preparation method thereof.Add 3-amino pentane and isopropylamine, 3-amino pentane and isopropylamine mixture and hydrogen sulfide reaction to form 3-sulfanyl pentane and 1-sulfanyl isopropylamine, reduce the content of hydrogen sulfide in oil and gas;In the reaction, appropriate solid catalyst is added, the reaction speed is improved, and the generation time is saved;And in the oil and gas of reaction kettle, bactericide propyl trimethyl ammonium chloride 2% to 4% and SAA are added, to avoid bacteria in oil and gas storage, sulfate and sulfur-containing organic compounds in sulfur are reduced to hydrogen sulfide;The use of precipitant adsorbs solid impurities in oil and gas and impurities generated after reaction, and the removal of impurities is facilitated;This scheme not only removes hydrogen sulfide in oil and gas, but also ensures that hydrogen sulfide is not generated again during oil and gas storage.

Description

TECHNICAL FIELD

[0001] The present application relates to oil and gas hydrogen sulfide absorption technology field, especially to a kind of for oil and gas exploitation, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and preparation method thereof. BACKGROUND

[0002] When carrying out oil and gas exploitation, due to the large amount of hydrogen sulfide gas in crude oil and gas, resulting in exploitation equipment, conveying equipment and detection equipment appear different degree of corrosion phenomenon. And the current international and domestic commonly used physical hydrogen sulfide separation technology is: negative pressure flash evaporation method, multistage separation method, fractional distillation method and gas stripping method, however, the effect of physical method for removing hydrogen sulfide in oil and gas is poor, the yield of product is low, and the energy consumption in production is large, which increases the production cost of enterprise.

[0003] The main component of oil in oil and gas is a mixture of various alkanes, naphthenes and aromatic hydrocarbons, and natural gas is mainly composed of methane. After oil and gas exploitation, not only for ship transportation, industrial production, our daily life also depends on oil and gas, such as heating, cooking and car for our travel, etc. Oil and gas exploitation is closely related to our life. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a kind of for oil and gas exploitation, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and preparation method thereof, by adding hydrogen sulfide absorbent 3-amino pentane and isopropylamine to oil and gas, 3-amino pentane and isopropylamine mixture reacts with hydrogen sulfide to generate 3-sulfanyl pentane and 1-sulfanyl isopropyl, which reduces the content of hydrogen sulfide in oil and gas. In the reaction, a suitable amount of solid catalyst is added to improve the reaction speed and save the generation time. And 2% to 4% of bactericide propyltrimethylammonium chloride and SAA are added to the oil and gas in the reaction kettle to avoid the reduction of sulfur in sulfate and sulfur-containing organic compounds to hydrogen sulfide by bacteria during oil and gas storage. The use of precipitant can adsorb the solid impurities in oil and gas and the impurities generated after reaction, which is convenient for the removal of impurities. This scheme not only removes hydrogen sulfide in oil and gas, but also ensures that hydrogen sulfide will not be generated again during oil and gas storage, which is more conducive to environmental protection.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is characterized in that: it comprises hydrogen sulfide absorbent, solid catalyst I 3% to 10%, precipitant 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst II. The reactor used in the reaction system is: reaction kettle, mixing device, centrifuge and hydraulic pump.

[0006] The hydrogen sulfide absorbent mainly comprises 3-amino pentane and isopropylamine.

[0007] The solid catalyst I is copper oxide (CuO).

[0008] The bactericide is composed of propyl trimethyl ammonium chloride 2% to 4% and SAA.

[0009] A hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation and a preparation method thereof, characterized by comprising the following steps:

[0010] (1) During oil and gas exploitation, a small amount of hydrogen sulfide absorbent is first put into the oil and gas field to be exploited;

[0011] (2) A refrigerant is used to ensure that the temperature in the storage library is maintained at -5℃ to 0℃, and then the collected oil and gas is stored in the storage library;

[0012] (3) The oil and gas in the storage library is transported to the reaction kettle, and at the same time, an appropriate amount of bactericide 1% to 5% is put into the reaction kettle I, and the materials in the reaction kettle are continuously stirred to make them uniformly mixed;

[0013] (4) The materials in the reaction kettle I are transported to the reaction kettle II, and after the temperature in the reaction kettle II is maintained at 25℃ or above, the hydrogen sulfide absorbent is injected into the reaction kettle II, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:1, 1:2 or 1:3;

[0014] (5) At the same time, an appropriate amount of solid catalyst I 3% to 10% is added to the reaction kettle II and stirred uniformly;

[0015] (6) After 3 hours of reaction, the materials in the reaction kettle II are transported to the reaction kettle III, a precipitating agent 3% to 7% is added to the reaction kettle III, and the materials in the reaction kettle III are treated by filtration and centrifugation for 2 hours;

[0016] (7) The filtered and centrifuged materials are transported by pipeline for the next step of processing, and the sulfur content of the oil and gas in the pipeline is detected;

[0017] (8) At the same time, the waste gas in the reaction kettle III is introduced into a container containing sodium hydroxide powder to absorb the trace amount of hydrogen sulfide gas in the oil and gas, and to produce industrial-grade sodium sulfide salt.

[0018] A hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation and a preparation method thereof, the preparation method of the hydrogen sulfide absorbent being as follows:

[0019] (1) The raw materials of the hydrogen sulfide absorbent are respectively 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II;

[0020] (2) The reaction equation is:

[0021] The preparation equation of 3-amino pentane is:

[0022] CH3CH2CH(OH)CH2CH2CH3 + NH4NO3 = CH3CH2CH(NH2)CH2CH2CH3 + HNO3 + H2O

[0023] Preparation equation of isopropylamine:

[0024] (CH3)2CHOH + NH4NO3 = (CH3)2CHNH2 + HNO3 + H2O

[0025] Compared with the prior art, the present application has the following advantages:

[0026] 1. Compared with other production processes, the corrosion damage to the production equipment is lower;

[0027] 2. The influence of hydrogen sulfide during subsequent crude oil processing is avoided, ensuring the high quality of the product;

[0028] 3. The pollution of hydrogen sulfide gas and compounds to the environment during oil and gas exploitation is reduced;

[0029] 4. The SAA bactericide not only has a bactericidal effect, but also reduces the corrosion of the equipment and the generation of bottom sediment in the reaction, further ensuring the efficiency during oil and gas exploitation;

[0030] 5. The raw materials used by the hydrogen sulfide absorbent are common chemical raw materials, which saves cost and is relatively simple to prepare. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a schematic diagram of the influence of the equipment and pipeline corrosion degree of the oil and gas product after adding the hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation, and the preparation method of the hydrogen sulfide absorbent.

[0032] Figure 2 It is a schematic diagram of the influence of the equipment and pipeline corrosion degree of the oil and gas product after adding the catalyst for oil and gas exploitation, oil and gas environmental protection gathering and transportation, and the preparation method of the hydrogen sulfide absorbent.

[0033] Figure 3 It is a comparison diagram of the content change of hydrogen sulfide in the output oil and gas after adding the bactericide for oil and gas exploitation, oil and gas environmental protection gathering and transportation, and the preparation method of the hydrogen sulfide absorbent.

[0034] Figure 4 It is a comparison diagram of the removal rate of solid impurities in the oil and gas by the precipitating agent for oil and gas exploitation, oil and gas environmental protection gathering and transportation, and the preparation method of the hydrogen sulfide absorbent. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of well-known structures and techniques is omitted to avoid unnecessary confusion of the concept of the present application.

[0036] Embodiment 1

[0037] Directly using the test mining equipment to mine oil and gas, without adding other accessories, detecting the content of hydrogen sulfide in oil and gas; after using for one month, detecting the corrosion of the test equipment and the conveying pipeline.

[0038] Embodiment 2

[0039] A hydrogen sulfide absorbent for oil and gas mining and oil and gas environmental protection gathering and transportation and a preparation method thereof, characterized in that it comprises a hydrogen sulfide absorbent, a solid catalyst I 3% to 10%, a precipitating agent 3% to 7%, a bactericide 1% to 5%, a refrigerant, sodium hydroxide powder and a solid catalyst II; the reactor used in the reaction system is a reaction kettle, a mixing device, a centrifuge and a hydraulic pump.

[0040] The hydrogen sulfide absorbent mainly comprises 3-amino pentane and isopropylamine.

[0041] The solid catalyst I is copper oxide (CuO).

[0042] The bactericide is composed of propyl trimethyl ammonium chloride 2% to 4% and SAA.

[0043] The hydrogen sulfide absorbent for oil and gas mining and oil and gas environmental protection gathering and transportation and the preparation method thereof, characterized in that it comprises the following steps:

[0044] (1) When mining oil and gas, a small amount of hydrogen sulfide absorbent is first put into the oil and gas field to be mined;

[0045] (2) A refrigerant is used to ensure that the temperature in the storage library is maintained at -5°C to 0°C, and then the collected oil and gas is stored in the storage library;

[0046] (3) The materials in the reaction kettle I are transported to the reaction kettle II, and after the temperature in the reaction kettle II is maintained at 25°C or above, the hydrogen sulfide absorbent is injected into the reaction kettle II, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:1;

[0047] (4) After 3 hours of reaction, the materials in the reaction kettle II are filtered and centrifuged;

[0048] (5) The filtered and centrifuged materials are transported by pipeline for the next step of processing, and the sulfur content of the oil and gas in the pipeline is detected;

[0049] (6) At the same time, the waste gas in the reactor II is introduced into a container containing sodium hydroxide powder, and the trace amount of hydrogen sulfide gas in the oil gas is absorbed to produce industrial-grade sodium sulfide salt.

[0050] The preparation method of the hydrogen sulfide absorbent is as follows:

[0051] (1) The raw materials of the hydrogen sulfide absorbent are 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II, respectively;

[0052] (2) The reaction equation is:

[0053] The preparation equation of 3-amino pentane is:

[0054] CH3CH2CH(OH)CH2CH2CH3+NH4NO3=CH3CH2CH(NH2)CH2CH2CH3+HNO3+H2O

[0055] The preparation equation of isopropylamine is:

[0056] (CH3)2CHOH+NH4NO3=(CH3)2CHNH2+HNO3+H2O

[0057] Example 3

[0058] A hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation and its preparation method, characterized in that it comprises hydrogen sulfide absorbent, solid catalyst I 3% to 10%, precipitating agent 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst II; the reactor used in the reaction system is a reactor, a mixing device, a centrifuge and a hydraulic pump.

[0059] The hydrogen sulfide absorbent mainly comprises 3-amino pentane and isopropylamine.

[0060] The solid catalyst I is copper oxide (CuO).

[0061] The bactericide is composed of propyl trimethyl ammonium chloride 2% to 4% and SAA.

[0062] The hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation and its preparation method, characterized in that it comprises the following steps:

[0063] (1) When oil and gas is exploited, a small amount of hydrogen sulfide absorbent is first put into the oil and gas field to be exploited;

[0064] (2) The refrigerant is used to ensure that the temperature in the storage library is maintained at -5°C to 0°C, and then the collected oil and gas is stored in the storage library;

[0065] (3) The material in the reactor I is transported to the reactor II, and after the temperature in the reactor II is maintained above 25, hydrogen sulfide absorbent is injected into the reactor II, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:2 or 1:3;

[0066] (4) After 3 hours of reaction, the material in the reactor II is filtered and centrifuged;

[0067] (5) The filtered and centrifuged material is transported by pipeline for the next processing, and the sulfur content of the oil gas in the pipeline is detected;

[0068] (6) At the same time, the waste gas in the reactor II is introduced into a container containing sodium hydroxide powder to absorb trace amounts of hydrogen sulfide gas in the oil gas to produce industrial-grade sodium sulfide salt.

[0069] The preparation method of the hydrogen sulfide absorbent is as follows:

[0070] (1) The raw materials of the hydrogen sulfide absorbent are 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II;

[0071] (2) The reaction equation is:

[0072] The preparation equation of 3-amino pentane is:

[0073] CH3CH2CH(OH)CH2CH2CH3+NH4NO3=CH3CH2CH(NH2)CH2CH2CH3+HNO3+H2O

[0074] The preparation equation of isopropylamine is:

[0075] (CH3)2CHOH+NH4NO3=(CH3)2CHNH2+HNO3+H2O

[0076] Example 4

[0077] A hydrogen sulfide absorbent for oil and gas exploration and environmental protection oil and gas gathering and transportation and its preparation method, characterized in that it comprises hydrogen sulfide absorbent, solid catalyst I 3% to 10%, precipitating agent 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst II; the reactor used in the reaction system is: reactor, mixing device, centrifuge and hydraulic pump.

[0078] The hydrogen sulfide absorbent mainly consists of 3-amino pentane and isopropylamine.

[0079] The solid catalyst I is copper oxide (CuO).

[0080] The bactericide is composed of propyl trimethyl ammonium chloride 2% to 4% and SAA.

[0081] The hydrogen sulfide absorbent for oil and gas exploitation, oil and gas environmental protection gathering and transportation, and a preparation method thereof, characterized by comprising the following steps:

[0082] (1) During oil and gas exploitation, a small amount of hydrogen sulfide absorbent is first put into the oil and gas field to be exploited;

[0083] (2) A refrigerant is used to ensure that the temperature in the storage library is maintained at -5°C to 0°C, and then the collected oil and gas is stored in the storage library;

[0084] (3) The materials in the reaction kettle I are transported to the reaction kettle II, and after the temperature in the reaction kettle II is maintained at 25°C or above, the hydrogen sulfide absorbent is injected into the reaction kettle II, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:2;

[0085] (4) At the same time, a proper amount of solid catalyst I 3% to 10% is added to the reaction kettle II and stirred uniformly;

[0086] (5) After 3 hours of reaction, the materials in the reaction kettle II are filtered and centrifuged;

[0087] (6) The filtered and centrifuged materials are transported by pipeline for the next step of processing, and the sulfur content of the oil and gas in the pipeline is detected;

[0088] (7) At the same time, the waste gas in the reaction kettle II is introduced into a container containing sodium hydroxide powder to absorb trace amounts of hydrogen sulfide gas in the oil and gas, and industrial-grade sodium sulfide salt is prepared.

[0089] The preparation method of the hydrogen sulfide absorbent is as follows:

[0090] (1) The raw materials of the hydrogen sulfide absorbent are 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II;

[0091] (2) The reaction equation is:

[0092] The preparation equation of 3-amino pentane is:

[0093] CH3CH2CH(OH)CH2CH2CH3+NH4NO3=CH3CH2CH(NH2)CH2CH2CH3+HNO3+H2O

[0094] The preparation equation of isopropylamine is:

[0095] (CH3)2CHOH+NH4NO3=(CH3)2CHNH2+HNO3+H2O

[0096] Example 5

[0097] A kind of for oil and gas exploitation, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and its preparation method, it is characterized by: including by hydrogen sulfide absorbent, solid catalyst Ⅰ 3% to 10%, precipitator 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst Ⅱ;The reactor used in the reaction system is: reaction kettle, mixing device, centrifuge, hydraulic pump.

[0098] The hydrogen sulfide absorbent is mainly composed of 3-amino pentane and isopropylamine.

[0099] The solid catalyst Ⅰ is copper oxide (CuO).

[0100] The bactericide is composed of propyltrimethylammonium chloride 2% to 4% and SAA.

[0101] The one for oil and gas exploitation, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and its preparation method, it is characterized by, including the following steps:

[0102] (1) when oil and gas exploitation, first, the oil and gas field that needs to be mined is put into a small amount of hydrogen sulfide absorbent;

[0103] (2) using refrigerant, ensure that the temperature in the storage is maintained at minus 5 ℃ to zero, then the collected oil and gas is stored in the storage;

[0104] (3) the oil and gas in the storage is transported to the reaction kettle, and at the same time, the bactericide propyltrimethylammonium chloride 2% to 4% or SAA is put into the reaction kettle Ⅰ, and the materials in the reaction kettle are stirred evenly;

[0105] (4) the materials in the reaction kettle Ⅰ are transported to the reaction kettle Ⅱ, and after the temperature in the reaction kettle Ⅱ is maintained at 25 or more, the hydrogen sulfide absorbent is injected into the reaction kettle Ⅱ, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:2;

[0106] (5) at the same time, a proper amount of solid catalyst Ⅰ 8% is added to the reaction kettle Ⅱ, and stirred evenly;

[0107] (6) after 3 hours of reaction, the materials in the reaction kettle Ⅱ are filtered and centrifuged;

[0108] (7) the filtered and centrifuged materials are transported by pipeline for the next step of processing, and the sulfur content of the oil and gas in the pipeline is detected;

[0109] (8) at the same time, the waste gas in the reaction kettle Ⅱ is introduced into the container containing sodium hydroxide powder, and the trace hydrogen sulfide gas in the oil and gas is absorbed to produce industrial grade sodium sulfide salt.

[0110] The preparation method of hydrogen sulfide absorbent is as follows:

[0111] (1) the hydrogen sulfide absorber raw materials are respectively: 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II;

[0112] (2) the reaction equation is:

[0113] 3-amino pentane preparation equation:

[0114] CH3CH2CH(OH)CH2CH2CH3+NH4NO3=CH3CH2CH(NH2)CH2CH2CH3+HNO3+H2O

[0115] isopropylamine preparation equation:

[0116] (CH3)2CHOH+NH4NO3=(CH3)2CHNH2+HNO3+H2O

[0117] Example 6

[0118] A hydrogen sulfide absorber for oil and gas exploration, oil and gas environmental gathering and transportation and a preparation method thereof, characterized in that: comprising hydrogen sulfide absorber, solid catalyst I 3% to 10%, precipitating agent 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst II; the reactor used in the reaction system is: reaction kettle, mixing device, centrifuge and hydraulic pump.

[0119] The hydrogen sulfide absorber mainly consists of 3-amino pentane and isopropylamine.

[0120] The solid catalyst I is copper oxide (CuO).

[0121] The bactericide is composed of propyl trimethyl ammonium chloride 2%-4% and SAA.

[0122] The hydrogen sulfide absorber for oil and gas exploration, oil and gas environmental gathering and transportation and a preparation method thereof, characterized in that, comprising the following steps:

[0123] (1) during oil and gas exploration, first put a small amount of hydrogen sulfide absorber into the oil and gas field to be explored;

[0124] (2) use the refrigerant to ensure that the temperature in the storage library is maintained at minus 5°C to zero;

[0125] (3) transport the oil and gas in the storage library to the reaction kettle, and at the same time, put the bactericide composed of propyl trimethyl ammonium chloride 4% and SAA 1:1, 1:2, 1:3 into the reaction kettle I, and continuously stir to mix the materials in the reaction kettle evenly;

[0126] (4) The material in the reactor I is transported to the reactor II, and after the temperature in the reactor II is maintained above 25, hydrogen sulfide absorbent is injected into the reactor II, and the ratio of 3-amino pentane and isopropylamine in the hydrogen sulfide absorbent is 1:2;

[0127] (5) At the same time, a proper amount of solid catalyst I 8% is added into the reactor II, and stirred uniformly;

[0128] (6) After 3 hours of reaction, the material in the reactor II is filtered and centrifuged;

[0129] (7) The filtered and centrifuged material is transported by pipeline for the next processing, and the sulfur content of the oil gas in the pipeline is detected;

[0130] (8) At the same time, the waste gas in the reactor III is introduced into a container containing sodium hydroxide powder to absorb trace amounts of hydrogen sulfide gas in the oil gas and produce industrial-grade sodium sulfide salt.

[0131] The preparation method of the hydrogen sulfide absorbent is as follows:

[0132] (1) The raw materials of the hydrogen sulfide absorbent are 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II;

[0133] (2) The reaction equation is:

[0134] The preparation equation of 3-amino pentane is:

[0135] CH3CH2CH(OH)CH2CH2CH3+NH4NO3=CH3CH2CH(NH2)CH2CH2CH3+HNO3+H2O

[0136] The preparation equation of isopropylamine is:

[0137] (CH3)2CHOH+NH4NO3=(CH3)2CHNH2+HNO3+H2O

[0138] Example 7

[0139] An oil and gas exploration, oil and gas environmental protection gathering and transportation hydrogen sulfide absorbent and its preparation method, characterized by: including hydrogen sulfide absorbent, solid catalyst I 3% to 10%, precipitating agent 3% to 7%, bactericide 1% to 5%, refrigerant, sodium hydroxide powder and solid catalyst II; The reactor used in the reaction system is: reactor, mixing device, centrifuge, hydraulic pump.

[0140] The hydrogen sulfide absorbent mainly consists of 3-amino pentane and isopropylamine.

[0141] The solid catalyst I is copper oxide (CuO).

[0142] The bactericide is composed of propyl trimethyl ammonium chloride 2% to 4% and SAA.

[0143] The hydrogen sulfide absorbent for oil and gas exploitation and environmental protection gathering and transportation and its preparation method are characterized by comprising the following steps:

[0144] (1) During oil and gas exploitation, a small amount of hydrogen sulfide absorbent is first put into the oil and gas field to be exploited;

[0145] (2) A refrigerant is used to ensure that the temperature in the storage library is maintained at -5°C to 0°C, and then the collected oil and gas is stored in the storage library;

[0146] (3) The oil and gas in the storage library is transported to the reaction kettle, and an appropriate amount of bactericide composed of propyl trimethyl ammonium chloride 4% and SAA 1:2 is put into the reaction kettle I, and the materials in the reaction kettle are continuously stirred to be uniformly mixed;

[0147] (4) The materials in the reaction kettle I are transported to the reaction kettle II, and after the temperature in the reaction kettle II is maintained at 25°C or above, the hydrogen sulfide absorbent is injected into the reaction kettle II, and the ratio of 3-amino pentane and isopropyl amine in the hydrogen sulfide absorbent is 1:2;

[0148] (5) An appropriate amount of solid catalyst I 8% is added to the reaction kettle II at the same time, and stirred uniformly;

[0149] (6) After 3 hours of reaction, the materials in the reaction kettle II are transported to the reaction kettle III, 3% to 7% of precipitant is added to the reaction kettle III, and the materials in the reaction kettle III are treated by filtration and centrifugation after 2 hours of heat preservation;

[0150] (7) The filtered and centrifuged materials are transported by pipeline for the next step of processing, and the sulfur content of the oil and gas in the pipeline is detected at the same time;

[0151] (8) At the same time, the waste gas in the reaction kettle III is introduced into a container containing sodium hydroxide powder to absorb trace amounts of hydrogen sulfide gas in the oil and gas, and industrial-grade sodium sulfide salt is prepared.

[0152] The preparation method of the hydrogen sulfide absorbent is as follows:

[0153] (1) The raw materials of the hydrogen sulfide absorbent are 3-hydroxy pentanol, isopropyl alcohol, ammonium nitrate and solid catalyst II, respectively;

[0154] (2) The reaction equation is:

[0155] The preparation equation of 3-amino pentane is:

[0156] CH3CH2CH(OH)CH2CH2CH3 + NH4NO3 = CH3CH2CH(NH2)CH2CH2CH3 + HNO3 + H2O

[0157] Preparation equation of isopropylamine:

[0158] (CH3)2CHOH + NH4NO3 = (CH3)2CHNH2 + HNO3 + H2O

[0159] From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest. Figure 1 From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest.

[0160] Figure 2 From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest.

[0161] From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest. Figure 3 From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest.

[0162] Figure 4 From the above, the results of Examples 1, 2, and 3 can be compared. When no hydrogen sulfide absorbent is added to the oil gas, the equipment and pipelines will be seriously corroded after a period of use. However, when the hydrogen sulfide absorbent is added to the oil gas, the corrosion of the equipment is significantly improved. Moreover, when the ratio of 3-aminopentane to isopropylamine is 1:2, the residual amount of hydrogen sulfide in the oil gas is the lowest.

[0163] ​​It should be understood that the foregoing detailed description of the application, rather than limiting the application, is intended to explain and describe the current implementation of the application. Therefore, any modification, equivalent replacement or improvement made without departing from the spirit and scope of the application should be included in the protection scope of the application. In addition, the appended claims of the application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent form of such scope and boundary.

Claims

1. A method for absorbing hydrogen sulfide in oil and gas exploration, oil and gas environmental collection and transportation, characterized in that, It comprises the following steps: (1) When oil and gas is exploited, first put a small amount of hydrogen sulfide absorbent raw material into the oil and gas field to be exploited, the hydrogen sulfide absorbent raw material is composed of 3-aminopentane and isopropylamine; (2) Use refrigerant to ensure that the temperature in the storage library is maintained between minus 5 degrees Celsius and zero degrees, and then store the collected oil and gas in the storage library; (3) The oil and gas in the storage library is transported to the reaction kettle I, and at the same time, a proper amount of 1% to 5% by weight of bactericide is put into the reaction kettle I, and the materials in the reaction kettle are continuously stirred to make them uniformly mixed; the bactericide is composed of 2% to 4% by weight of propyltrimethylammonium chloride and SAA; (4) The materials in the reaction kettle I are transported to the reaction kettle II, and after the temperature in the reaction kettle II is maintained above 25℃, hydrogen sulfide absorbent is injected into the reaction kettle II, the mass ratio of 3-aminopentane and isopropylamine in the hydrogen sulfide absorbent is 1:1, 1:2 or 1:3; (5) At the same time, 3% to 10% by weight of solid catalyst I is added to the reaction kettle II, and stirred uniformly, the solid catalyst I is copper oxide; (6) After 3 hours of reaction, the materials in the reaction kettle II are transported to the reaction kettle III, 3% to 7% by weight of precipitant is added to the reaction kettle III, and the materials in the reaction kettle III are treated by filtration and centrifugation after 2 hours of heat preservation; (7) The materials after filtration and centrifugation are transported by pipeline for next step processing, and the sulfur content of oil and gas in the pipeline is detected; (8) At the same time, the waste gas in the reaction kettle III is introduced into the container containing sodium hydroxide powder to absorb trace hydrogen sulfide gas in the oil and gas and produce industrial grade sodium sulfide salt.

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