Method and apparatus on halting global warming

Abstract

We have described herein a method and associated apparatus that can halt global warming with significant economic benefits. They include re-scrubbing half the carbon dioxide emitted from calcining baking soda into soda ash to produce twice as much soda ash and twice as much ammonium chloride as compared with the standard Solvay ammonia soda ash process, collecting from calcining exhaust a carbon dioxide and water mixture, transferring the carbon dioxide and water mixture to a hydraulic press for use as a multi component working medium.

Claims

1. A method on carbon dioxide capturing able to halt global warming by enlarging regions suitable for sugarcane plantation as a substitute for rain forest to absorb large quantity of anthropogenic carbon dioxide already in the earth's atmosphere via photosynthesis, producing cane sugar, fermenting to fuel ethanol, and using the cellulose biogases, a bio-mass fuel for electricity generation without adding new carbon dioxide into atmosphere, comprising an improved Solvay process as depicted in FIG. 1, further comprising: A. a kiln to calcine baking soda into soda ash, the kiln equipped with a vacuum pump for removing air inside the kiln before calcining, and collecting from upper exhaust 101 a one-to-one molar ratio mixture of carbon dioxide and water for use as multi component working fluid; a scrubbing tower connected to said kiln and receiving said collected upper exhaust mixture of carbon dioxide and water; B. the scrubbing tower 103 equipped with a bottom inlet 102 for receipt of said one-to-one molar ratio of carbon dioxide and water to be scrubbed whereby twice as much of soda ash and twice as much of ammonium chloride is produced; C. providing a hydraulic press for receiving said mixture of carbon dioxide and water, and optionally transferring said mixture to said hydraulic press for use as a working medium.

Description

BRIEF DESCRIPTION OF DRAWING

(1) FIG. 1 shows the flow-diagram of total carbon dioxide capture scrubbing system.

(2) FIG. 2 shows the structure of solar powered hydraulic pump;

(3) FIG. 3 shows the distilled-water producing tube heater device.

(4) FIG. 4 shows the prior art kiln arrangement that carries out the reaction of Equation (b);

(5) In the prior art practice as shown in FIG. 4, Equation (b) is carried out in a kiln 401 slightly tilted with an angle from upper, inlet end 402 toward lower, outlet end 403. It is well known from skilled operators in the art, if freshly centrifuged baking soda is fed into the inlet of the kiln, Equation (b) will be carried out in a very unsatisfactory manner that the newly formed soda ash at above 350 degree Centigrade will form a cake with wet baking soda in mixture of small percentage of soda ash, rendering the reaction of Equation (b) incomplete thus the product is not sellable.

(6) To remediate this problem, small percentage of freshly centrifuged baking soda is mixed with large percentage of soda ash powder previously obtained from outlet 403, charged into inlet 402, then a sellable product of soda ash powders are thus obtained.

BEST EMBODIMENT OF THE INVENTION

(7) In FIG. 1, the upper exhaust 101 of the calcining kiln containing one-half of the carbon dioxide captured by the conventional Solvay process is pumped into the bottom inlet 102 of the scrubbing tower 103, The baking soda, after separated from the centrifuge, is converted into soda ash as usual according to the prior art descriptions of FIG. 4.

(8) For the purpose of collecting pure form of CO.sub.2+H.sub.2O usable as bi-component working medium to power a hydraulic press unit used either as a pump or as a shipping vessel, the baking soda to soda ash conversion kiln 104 is equipped with a vacuum pump to remove air in the kiln 104 and the CO.sub.2+H.sub.2O mixture so produced can be collected through a three way valve 105 whose outlet 105a is connected to the bottom inlet 102 of the scrubbing tower, and the other outlet 105b is connected to a CO.sub.2+H.sub.2O storage tank 106 for future use as the working medium of said hydraulic press.

(9) In FIG. 2, the hydraulic press 201 is consisting of two CO.sub.2+H.sub.2O reservoirs 202a associated with moveable piston 202c, and reservoir 202b associated with moveable piston 202d, each reservoir is equipped with its own heat exchange unit 203a or 203b, obtaining its heat alternatively from the sunray condensing lens 204 pivoted through the lens' center of gravity axis to save power consumption of moving the lens 204. As the pressure at reservoir 202a increases, a rigid connecting rod 205 connecting pistons 202c and 202d pushes the lower pressure reservoir 202b into contraction. The connection rod 205 has two marker pins 206a and 206b mounted each at a fixed distance from the midpoint of the connection rod. A location sensor 207 at the midpoint location relative to the frame 208 of the hydraulic press 201 detected either the marker pin 206a or the marker pin 206b has made a contact with the location sensor 207, the electronics on board of hydraulic press 201 rotates the condensing plastic lens 204 from the heat exchange being heated to the heat exchange that was not heated. The process will go on continuously as long as the sunray is able to move the marker pin 206a or 206b passing through location sensor 207. The movement stops when the cloud covers the hydraulic press 201 until the cloud escapes, than the movement resumes. The hydraulic press 201 is equipped with enough photovoltaic solar panels 208 and storage battery 209 to support on board electronics, which also can locate the location of the sun as a function of the date and time of the on board electronic watch, and pointing the lens 204 accordingly.

(10) In FIG. 3, 301A shows the side view of a section of the distilled-water producing tube heater device. 301B shows the cross-sectional view of the distilled-water producing tube heater device. And 301C shows the overall layout of the water distiller.

(11) In both 301A and 301B, 302 is the outer, large diameter steel tube, and 303 is the inner, smaller diameter stainless steel tube. Between the outer tube and the inner tube, segment partition plates 304 and 305 are welded solid-tie to form a closed enclosure avoiding the escaping leakage of hot air. In order to heat the inner tube to a temperature higher than the equilibrium temperature of a blackbody radiation enclosure, a multitude of reflective troughs 306 whole foci line are coincide with the inner tube, focusing the infrared radiation onto the inner tube.

(12) The inner tubes from the segments are connected together in sequence to allow seawater passing through. After certain distance, the seawater inside the inner tube is feed into a separation tank wherein the steam and highly concentrated salt solution are separated, avoiding salt crystallizing inside the inner tube. The separated vapor is allowed to condense into distilled water inside a heat exchange using external evaporation cooling.