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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7326286 | Exhaust gas treating tower Provided is an exhaust gas treating tower in which exhaust gas flow velocity is increased more than a prior art case so that exhaust gas treating efficiency can be enhanced or the exhaust gas treating tower can be made compact if equivalent performance is to be main... | 02/05/2008 |
| 7013817 | Method for reducing the amount of a pollutant in a flue gas resulting from the combustion of a fossil fuel A process for removal of a pollutant from a flue gas. An alkaline admixture is coated with a coating agent that improves dispersability and delays calcination of the alkaline admixture within a combustion zone and results in a coated alkaline admixture. The coated a... | 03/21/2006 |
| 5788944 | Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent Exhaust gas from combustion equipment such as a boiler is brought into contact with an absorbing liquid to absorb sulfur oxide from the exhaust gas into the absorbing liquid. Limestone particles having larger diameters are selectively retained in a zone w... | 08/04/1998 |
| 5733517 | Byproduct solids crystal modification with organic acids in wet flue gas desulfurization systems A wet, calcium-based flue gas desulfurization process conducted under inhibited oxidation conditions and in the presence of at least one organic acid which both enhances the efficiency of sulfur dioxide removal and modifies the crystal habit of calcium su... | 03/31/1998 |
| 5686053 | Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent A wet-type flue gas desulfurization method and plant making use of a solid desulfurizing agent in which exhaust gas exhausted from a combustion apparatus such as a boiler is brought into contact with absorbing liquid to absorb sulfur oxide from the exhaus... | 11/11/1997 |
| 5558848 | Clear liquid acid flue gas desulfurization system An efficient and cost-effective flue gas desulfurization process for removing sulfur dioxide from waste gases is provided. The process employs a substantially solids-free clear liquor scrubbing liquid and an organic acid additive capable of maintaining a ... | 09/24/1996 |
| 5520897 | Method of reagent and oxidation air delivery A method of forced oxidation flue gas desulfurization uses an oxidation air system air stream to not only provide oxidation air into an absorber vessel, but also to pneumatically convey and inject dry reagent into the absorber vessel to satisfy reagent ad... | 05/28/1996 |
| 5486342 | Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system A flue gas desulfurization process and system employing a clear scrubbing liquor and an organic acid buffer conducted under forced oxidation conditions to produce a usable gypsum by-product without scrubber scaling and abrasion is provided. Calcium ion co... | 01/23/1996 |
| 5215594 | Process for cleaning surfaces of interior parts in two-stage flue gas desulfurization plants A process for cleaning the surfaces of interior parts of two-stage flue gas desulfurization plants, which employ limestone as absorbent to form gypsum as the final product, such as guide plates and baffle plates and/or the discharge pipe and the bottom si... | 06/01/1993 |
| 5198201 | Removal of sulphur and nitrogen oxides from flue gases A method and apparatus are disclosed for removing pollutants, especially oxides of sulphur and nitrogen, from boiler plant flue gases. A series of heat exchange steps cool the gas and condense acidic condensates. SO3 is removed by condensation,... | 03/30/1993 |
| 5167941 | Quaternary polyamines as sulfite oxidation inhibitors in amine scrubbing of SO2 Inhibitors of oxidation of sulfites to sulfates in sulfur dioxide scrubbing solutions are disclosed. The inhibitors are cationic polyelectrolytes which are water soluble, have a molecular weight of at least 10,000 daltons and contain quaternary amine grou... | 12/01/1992 |
| 4834955 | Chemical formulation and combined process for inhibiting deposition and corrosion in cooling water and gypsum scaling in flue gas desulfurization scrubber systems An inhibitor formulation for inhibiting corrosion and deposition of calcium phosphate, calcium carbonate, and silt in a cooling water system and calcium sulphate (gypsum) scaling in a flue gas desulfurization system. The inhibitor formulation comprises po... | 05/30/1989 |
| 4818506 | Gypsum scale inhibitors for flue gas desulfurization systems Gypsum scale inhibitors useful under wet flue gas desulfurization (FGD) scrubber temperature and pH conditions. The gypsum inhibitors advantageously prevent or minimize gypsum scale formation and crystal growth in mist eliminator wash water and in the scr... | 04/04/1989 |
| 4735787 | Scale inhibitor for intermittent washed mist eliminators in flue gas desulfurization systems A method of preventing scale and deposit formation on the surfaces of mist eliminators in wet scrubber flue gas desulfurization systems which utilize intermittent wash cycles which comprises coating the surfaces of these mist eliminators with a thin coati... | 04/05/1988 |
| 4670236 | Control of scale in flue gas scrubbers A method for minimizing calcium scale deposits in wet slurry flue gas desulfurization systems by introducing into the slurry a 50:50 diisobutylene-maleic anhydride copolymer of an average molecular weight of 11000.... | 06/02/1987 |
| 4629603 | Method of inhibiting cold end corrosion in boilers A liquid borate is added to sulfur trioxide-containing combustion gases at a temperature of from about 250° to about 1000° F. in a boiler or other furnace system. The borate neutralizes sulfuric acid in the gases and inhibits sulfuric acid corrosion and... | 12/16/1986 |
| 4543193 | Process for preventing the precipitation of elementary sulphur in riser pipes of probes for natural gas Process for preventing the precipitation of elementary sulfur in the riser pipes of probes for natural gas including a solvent for sulfur. For the dissolution of the precipitating elementary sulfur an ester of an optionally mono- or poly-unsaturated fatty... | 09/24/1985 |
| 4496525 | Method for using chemical additives to protect utility boiler air heaters while increasing unit generation capacity A method of improving the efficiency of large industrial boilers of the type using heat exchangers heated by superheated steam diverted from the steam used to produce energy, which heat exchangers elevate the temperature of the air heater section of such ... | 01/29/1985 |
| 4482528 | Lime slaking and grit removal process utilized in SO2 removal A lime slaking system for hydration of lime and removal of unwanted grit, particularly for formation of reactive slaked lime to be used in SO2 scrubbing of effluent gases, comprising a series of slaking vessels (10,12) for reacting CaO and wate... | 11/13/1984 |
| 4469663 | Scale control in flue gas desulfurization An improvement in a process for flue gas desulfurization in which particular phosphonomethylated derivatives of aminoethylpiperazine, employed as threshold agents, prevent calcium scale formation in the contacting section but permit precipitation of calci... | 09/04/1984 |
| 4465614 | Alkanolaminium carboxylate solvents for selective SO2 absorption Aqueous solutions comprising from about 35 to about 85% by weight of an alkanolaminium carboxylate have proven to be highly efficient absorption solvents for sulfur dioxide. Such solvents preferentially absorb sulfur dioxide from the gas streams containin... | 08/14/1984 |
| 4342733 | Method of improving sulfite antioxidant performance in high solids scrubbers An improved method for inhibiting sulfite oxidation in scrubber liquor of the type containing sulfite species is disclosed. A topping agent selected from the group consisting of polyphosphate compounds, and organo-phosphonic acid compounds, and mixtures t... | 08/03/1982 |
| 4301127 | Flue gas scrubbing system An SO2 flue gas scrubbing system wherein a calcium compound is dissolved in water and recirculated in contact with the flue gases. Calcium sulfite and sulfate formed in this process are also recirculated. A stream of the slurry passing to waste... | 11/17/1981 |
| 4298497 | Composition for preventing cold end corrosion in boilers A composition is provided for neutralizing acid corrosive agents in boiler flue gases and like vapors. In large industrial boilers and like systems, flue gases carrying sulfur trioxide contact metal surfaces of heat recovery equipment. Under some circumst... | 11/03/1981 |
| 4245573 | Air heater corrosion prevention An additive, e. g., MgO.Mg silicate, is injected into the flue gas stream of a coal-or oil-fired furnace, at 2300-1700 deg. F., thereby reducing accumulation of sulfuric acid on the air heater inlet and outlet.... | 01/20/1981 |
| 4246245 | SO2 Removal Improved methods are provided for the efficient and economic removal of sulfur dioxide from gases which comprise contacting the gas with neutralizing values obtained from Type S hydrated lime, i.e. calcined dolomite slaked with water under elevated temper... | 01/20/1981 |
| 4224180 | Cold end additive compositions The present invention is drawn to ethylene polyamines in combination with certain alkanolamines as cold-end additives. More specifically, it has been discovered that if these additives are fed to the moving combustion gases of a combustion system which us... | 09/23/1980 |
| 4218428 | Process for removing chlorine ions from the wet flue-gas processing system A process for removing chlorine ions from wet flue-gas processing system. According to the process of this invention, the accumulation of the chlorine ions in the processing system is sufficiently prevented, and thus the corrosion of the apparatus is efficient... | 08/19/1980 |
| 4213946 | Process for preventing formation of gypsum scale in a flue gas desulfurization process In a process for preventing the formation of gypsum scale in a flue gas desulfurization process, in which a gas containing SO2 is subjected to a desulfurization treatment by a lime-gypsum process, the concentration of Ca(OH)2 in an a... | 07/22/1980 |
| 4206172 | Alkanolamines and ethylene polyamines as cold-end additives The present invention is drawn to ethylene polyamines in combination with certain alkanolamines as cold-end additives. More specifically, it has been discovered that if these additives are fed to the moving combustion gases of a combustion system which us... | 06/03/1980 |
| 4177245 | Scale suppression in lime and limestone scrubbers Suppression of calcium sulfate scale in wet lime and limestone flue gas desulfurization (FGD) scrubbers and mist eliminators is accomplished by scrubbing in the presence of an oxidation inhibitor comprising gaseous nitric oxide (NO).... | 12/04/1979 |
| 4147755 | Air pollution control process Gases containing SO2 from a furnace are contacted in the scrubbing zone of a scrubber with an aqueous scrubbing medium containing Ca(OH)2 whereby sulfites are formed. The Ca(OH)2 additive is at least partially the Ca(OH) | 04/03/1979 |
| 4134727 | Aqueous solution of sodium metasilicate and N-aminoethyl ethanolamine as a cold-end additive A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system in contact with combustion gases derived from the combustion of sulfur-containin... | 01/16/1979 |
| 4134728 | N-aminoethyl ethanolamine as a cold-end additive A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system and in contact with combustion gases derived from the combustion of sulfur conta... | 01/16/1979 |
| 4134729 | Aqueous solution of sodium aluminate and N-aminoethyl ethanolamine as a cold end additive A method of reducing the amount of sulfur trioxide condensation on, and therefore the amount of sulfuric acid corrosion of, metal parts at the cold-end of a combustion system in contact with combustion gases derived from the combustion of sulfur-containin... | 01/16/1979 |
