DEVICE FOR SEPARATING CO2 FROM THE AMBIENT AIR AND ABSORBING CONCENTRATED CO2

Abstract

The invention describes a housing which aerates stone dust with ambient air or stone dust in an aqueous solution with concentrated CO2, the stone dust having a defined degree of humidity in order to absorb CO2. So that the stone dust does not escape from inside the housing, a plate system with a filter ensures that the stone dust is fixed in a certain position in the container.

So that the stone dust, which is moistened with the help of water mist in the supply air, does not clump and can be aerated more efficiently, the plates are partially in a state of vibration, which is generated by a frequency-controlled vibrating mechanism.

To empty the housing, the arrangement is pivoted through 180? and opened.

Preferred stones for the aeration material are granite, gneiss, gabbro and basalt rocks. Under certain circumstances, metallic parts are removed with a magnet so that the stone dust material can be used as fertilizer.

Claims

1) Arrangement as a device for aerating solid, dusty and moistened materials with ambient air or CO2, characterized in that the materials serving as a chemical filter consist of ground natural stonehereinafter referred to as stone dustaround which air flows or flows through to CO2 filter or is in an aqueous solution to absorb CO2.

2) Arrangement according to claim 1, characterized in that the stone dust materials are held by one or more plates with a mechanical filter.

3) Arrangement according to claim 2, characterized in that the plates are perforated.

4) Arrangement according to claim 1, characterized in that the filter material is arranged between the plates.

5) Arrangement according to claim 1, characterized in that the filter consists of paper or a waterproof material.

6) Arrangement according to one of claim 1, characterized in that the filter separates the air or CO2 flowing in through a pipe in concentrated form and the stone dust.

7) Arrangement according to one of claim 1, characterized in that the plates are made of carbon fiber brick.

8) Arrangement according to one of claim 1, characterized in that the plates are surrounded by a box which encloses the arrangement airtight, wherein the box or container is pressure-resistant for pressure from the inside.

9) Arrangement according to one of claim 1, characterized in that the plates or another device of a vibrating mechanism put the stone dust into high-frequency mechanical vibrations.

10) Arrangement according to one of claim 1, characterized in that the inflowing air is humidified with water or water vapor or CO2 is supplied under pressure into the interior of the box or container.

11) Arrangement according to one of claim 1, characterized in that the arrangement can be pivoted vertically through 180? and opened.

12) Arrangement according to one of claim 1, characterized in that the stone dust consists of granite, gneiss, gabbro, serpentine, olivine, dunite or basalt or a mixture of these materials.

13) Arrangement according to one of claim 1, characterized in that the vibrating vibration mechanism has a frequency control.

14) Arrangement according to one of claim 1, characterized in that metallic components are removed with the aid of a magnet from the stone dust.

15) Arrangement according to one of claim 1, characterized in that there is a pressure-regulating valve in each case in the air or CO2 supply pipe and/or exhaust gas pipe.

16) Arrangement according to one of claim 1, characterized in that the rock dust is used as fertilizer for agriculture and/or oceans.

Description

[0011] The present invention thus proposes a cost-effective way to produce CO2 negative emissions using stone dust as waste, which is produced more or less free of charge in stone production by cutting stone slab ware, which with the ever-increasing quantities of natural stone materials, that will be installed in the construction sector in the future.

[0012] One of the many possible embodiments is shown in FIG. 1 and FIG. 2. FIG. 2 shows the arrangement in cross section.

[0013] The illustrations show a stone slab (1) that is flat on the underside and is stabilized with a carbon layer (2) consisting of fiber and resin matrix.

[0014] The plate is in a box-shaped container (3). The stone slab (1) is perforated with small holes (2a). On top of the plate lies a paper filter or a sheet of other waterproof and water-permeable material (4), which is pressed onto the stone slab (1) by another perforated plate (5). Above the plate arrangement (1) and (5) is the moist stone dust (12), through which the ambient air or CO2 (13) is pressed or blown from below or, in the case of the ambient air, if necessary. also circulates freely if the exhaust pipe (7) is long enough. In the case of the aqueous stone dust solution for absorbing high-pressure compressed CO2, (12a) indicates the water level of the aqueous stone dust solution. The container (3) has a funnel-shaped outlet (6) with an exhaust pipe (7), pressure control and shut-off (7a) and another filter (8) on the upper side.

[0015] At the bottom of the container there is a ventilation tube (9) with a pressure control (9a), through which the ambient air or CO2 (13) is supplied with a blower (10) and a mechanism (11) to induce high-frequency vibrations in the plates offset. In the case of carbonic acid weathering, the unit (11) is not an air blower but a pressure generator or turbine to compress CO2 to high pressure, which is forced into the aqueous stone dust solution. It may be useful to be able to adapt and vary the vibration frequencies of the vibrating mechanism to different consistencies of dust and to be able to adjust in relation to the degree of drying of the sludge or dust. The vibrations accelerate the weathering.

[0016] Since the stone sludge is partly produced by cutting the stone with the help of steel saws, it can make sense to filter the metal components from the sludge or dust with the help of a magnet at a suitable point in the process. This can be done with strong static magnets or electromagnets (14).

[0017] If the material is freed from harmful metals and heavy metals, it can be used as fertilizer. A nozzle (15) supplies water or steam (16) when the stone dust becomes too dry.

[0018] Alternatively, both approaches can be used, filtering CO2 out of the air via the rock mud and at the same time and additionally directing concentrated CO2 over the rock mud as a filter that absorbs the concentrated CO2.