CN215916932U

CN215916932U - Up-flow type internal double-circulation biological desulfurization reactor

Info

Publication number: CN215916932U
Application number: CN202122458761.XU
Authority: CN
Inventors: 孟章进; 王杰; 姜桂英; 杨帆
Original assignee: China Petroleum and Chemical Corp; Sinopec Jiangsu Oilfield Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Jiangsu Oilfield Co
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-03-01
Anticipated expiration: 2031-10-12

Abstract

The utility model provides an up-flow type internal double-circulation biological desulfurization reactor, and relates to the technical field of biological desulfurization equipment. The upflow internal dual-cycle biological desulfurization reactor comprises a cylinder body, a water inlet pump, a gas flowmeter and a water outlet pump; the upper end of the cylinder body is provided with a gas collection chamber; the bottom of the cylinder is connected with a water inlet pump and a water outlet pump through pipelines; the gas collection chamber is connected with a gas flowmeter through a pipeline. The bioreactor can circulate the sludge in the reactor, efficiently and quickly enrich sulfur oxidizing bacteria, and control functional bacteria by controlling the operating conditions of the reactor, thereby realizing the efficient removal of sulfides and the production of elemental sulfur.

Description

Up-flow type internal double-circulation biological desulfurization reactor

Technical Field

The utility model belongs to the technical field of biological desulfurization equipment, and particularly relates to an up-flow type internal double-circulation biological desulfurization reactor.

Background

With the continuous development of social economy, the demand for petroleum resources is increasing day by day. However, in the development process of the petroleum field, under the influence of various factors, the petroleum pipeline is easy to corrode, and the sustainable development of the petroleum industry, particularly the corrosion problem of hydrogen sulfide, is greatly hindered. The oilfield associated gas produced with the crude oil generally contains part of water vapor, and some of the oilfield associated gas also contains a considerable amount of acid gases such as hydrogen sulfide, carbon dioxide and the like. When the associated gas contains acid gas, the corrosion of pipelines and equipment by hydrogen sulfide and carbon dioxide is accelerated. The consequences can be quite severe if mishandled, resulting in hydrogen sulfide leakage. The source of hydrogen sulfide in associated gas is very wide, and hydrogen sulfide not only causes harm to personal safety, but also causes various problems of corrosion, environmental pollution and the like to well site equipment. Therefore, how to remove the hydrogen sulfide in the associated gas with high efficiency has important practical significance in the production of the petroleum industry in China.

The optimal application fields of biological gas desulfurization and sulfur recovery are large-scale desulfurization of natural gas, coke oven gas, chemical tail gas and the like, and can replace the wet oxidation desulfurization process of complex iron and tannin extract. Compared with a wet chemical oxidation method, biological desulfurization has obvious advantages in indexes such as sulfur, sulfur capacity and the like, but higher requirements are put forward on the indexes such as sulfur conversion rate, alkali consumption, volume load and the like of biological desulfurization, and technical breakthroughs need to be made in aspects such as a biological desulfurization reactor, a process control strategy and the like.

Biological sulfur oxidation is used for removing a small amount of H2S in gas at the earliest time, has good purification effect and mostly takes a biological trickling filter bed as a reactor. Air and sulfur-containing gas enter the biological trickling filter simultaneously, and H2S is completely oxidized into sulfuric acid under the action of sulfur oxidizing bacteria. In the biological sulfur oxidation desulfurization process, part of H2S is oxidized into elemental sulfur.The sulfur can be accumulated in the trickling filter bed to influence gas-liquid contact, so that the removal capacity of the biological trickling filter bed under an anoxic condition is low, the treatment scale of gas desulfurization is limited, and related researches are focused on how to improve fillers, strains, process conditions and the like so as to improve the removal efficiency. Natural and natural languages and the like through improving the filler of the biological trickling filter bed, the mass concentration of the allowed air inlet is improved to 1870mg/m³The maximum removal rate reaches 98.4 g/(m)³H). Fortuny et al use a bio-trickling filter packed with carriers with special surface characteristics to remove H2S in fuel gas, wherein the mass concentration of H2S is 13000-174000mg/m³Within the range, the maximum removal rate is improved to 235.3-263.5 g/(m)³H) range.

The novel upflow type internal double-circulation bioreactor developed by the utility model can circulate the sludge in the bioreactor, efficiently and quickly enrich sulfur oxidizing bacteria, and control functional bacteria by controlling the operating conditions of the bioreactor, thereby realizing the efficient removal of sulfide and the production of elemental sulfur.

SUMMERY OF THE UTILITY MODEL

In order to improve the biological desulfurization efficiency, the utility model provides the following technical scheme:

an up-flow internal double-circulation biological desulfurization reactor comprises a cylinder body, a water inlet pump, a gas flowmeter and a water outlet pump; the upper end of the cylinder body is provided with a gas collection chamber; the bottom of the cylinder body is respectively connected with a water inlet pump and a water outlet pump through pipelines, and the side surface of the cylinder body 10 is provided with a plurality of sampling ports 12.

Preferably, the bottom of the cylinder is conical.

Preferably, the cylinder is externally wrapped with a heating wire.

Preferably, a temperature controller is arranged on the electric heating wire.

Preferably, a gas collection funnel is arranged in the gas collection chamber, and the gas collection funnel is connected with the gas flowmeter through a pipeline.

Preferably, a gas washing bottle is arranged between the gas flowmeter and the gas collecting funnel, and alkali absorption liquid is filled in the gas washing bottle.

Preferably, the top of the gas collection chamber is provided with a water overflow port.

Preferably, the overflow port is connected with the water outlet tank through a pipe.

The utility model has the beneficial effects that: the upflow internal dual-circulation biological desulfurization reactor can enable the water outlet pump and the cylinder body to form circulation through a pipeline, so that sludge is circulated in the reactor, and sulfur oxidizing bacteria are efficiently and quickly enriched; meanwhile, the operation condition of the reactor can be controlled through the heating wire and the temperature controller, and then functional bacteria in the reactor are screened, so that the high-efficiency removal of sulfide and the production of elemental sulfur are realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-water inlet tank: 2-a water inlet pump; 3-resistance wire; 4-a temperature controller; 5, discharging a water pump; 6-a gas washing bottle; 7-a gas flow meter; 8-water outlet tank; 9-gas collection chamber; 10-a cylinder body; 11-a gas collection funnel; 12-a sampling port; 13-overflow.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

referring to fig. 1, an up-flow internal double circulation biological desulfurization reactor comprises a cylinder 9, a water inlet pump 2, a gas flow meter 7 and a water outlet pump 5; the upper end of the cylinder 10 is provided with a gas collection chamber 9; the bottom of the cylinder 10 is respectively connected with the water inlet pump 2 and the water outlet pump 5 through pipelines; the water inlet pump 2 is connected with the water inlet tank 1 through a pipeline; the main structural parameters are as follows: the diameter D of the cylinder 9 is 70mm, the diameter D of the inner sleeve is 42mm, the height H of the sleeve is 850mm, the height H of the reactor body is 1m, the total height is 1.32m, the total volume is 9.0L, and the effective volume is 3.85L. The cylinder 9 is provided with 7 sampling ports, and the distance between every two sampling ports is 20 cm.

Specifically, the bottom of the cylinder 10 is conical, so that water at the bottom of the cylinder 10 is concentrated, and drainage and water circulation operations are convenient to perform. The outside cladding of barrel 10 has heating wire 3, is provided with temperature controller 4 on the heating wire 3, can adjust the temperature in the barrel 10, changes the microorganism living environment in the bioreactor, screens and enriches it.

A gas collecting funnel 11 is arranged in the gas collecting chamber 9, the gas collecting funnel 11 is connected with the gas flowmeter 7 through a pipeline, the gas collecting funnel 11 can effectively prevent suck-back, and the phenomenon that the work of the reactor is influenced by the suck-back of water flow is avoided; a gas washing bottle 6 is arranged between the gas flowmeter 7 and the gas collecting funnel 11, and an alkali absorption liquid is filled in the gas washing bottle 6 to remove acidic substances in the gas and prevent harmful gas from overflowing.

The top of the gas collection chamber 9 is provided with an overflow port 13, the overflow port 13 is connected with the water outlet tank 8 through a pipeline, when the water in the reactor is excessive, the water can flow into the water outlet tank 8 through the overflow port 13, and the influence of sewage overflow on the normal operation of the reactor is prevented.

When the utility model is used, firstly, pipeline gas absorption liquid is injected into the water inlet tank 1, then activated sludge is added into the cylinder 10, and then the pipeline gas absorption liquid is introduced into the cylinder 10 through the water inlet pump 2. When the pipeline is used, the water outlet pump 5 and the cylinder 10 form a closed loop, the pipeline absorption liquid circulates in the cylinder 10, the temperature in the cylinder 10 is kept at 20-35 ℃ through the electric heating wire 3 and the temperature controller 4, and the pH value in the cylinder 10 is controlled to be 7.5-9.0; after the steps are completed, the sulfur-oxygen bacteria in the activated sludge are gradually enriched through a period of culture, organic matters, sulfides and nitrates in the absorption liquid are respectively converted into carbon dioxide, elemental sulfur and nitrogen, and the decomposition condition can be monitored through observing the gas washing bottle 6 and the gas flowmeter 7.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. An up-flow type internal double circulation biological desulfurization reactor is characterized in that: comprises a cylinder body, a water inlet pump, a gas flowmeter and a water outlet pump; the upper end of the cylinder body is provided with a gas collection chamber; the bottom of the cylinder body is respectively connected with a water inlet pump and a water outlet pump through pipelines; the side of the cylinder body is provided with a plurality of sampling ports.

2. The upflow, internal dual-cycle biological desulfurization reactor of claim 1, wherein: the bottom of the cylinder body is conical.

3. The upflow, internal dual-cycle biological desulfurization reactor of claim 1, wherein: the outer part of the cylinder body is coated with an electric heating wire.

4. The upflow, internal dual-cycle biological desulfurization reactor of claim 3, wherein: and a temperature controller is arranged on the electric heating wire.

5. The upflow, internal dual-cycle biological desulfurization reactor of claim 1, wherein: and a gas collection funnel is arranged in the gas collection chamber and is connected with a gas flowmeter through a pipeline.

6. The upflow, internal dual-cycle biological desulfurization reactor of claim 5, wherein: and a gas washing bottle is arranged between the gas flowmeter and the gas collecting funnel, and alkali absorption liquid is filled in the gas washing bottle.

7. The upflow, internal dual-cycle biological desulfurization reactor of claim 1, wherein: and the top of the gas collection chamber is provided with a water overflow port.

8. The upflow, internal dual-cycle biological desulfurization reactor of claim 7, wherein: the overflow port is connected with the water outlet tank through a pipeline.