WO2008126099A2

WO2008126099A2 - Exhaust gas treatment catalysts

Info

Publication number: WO2008126099A2
Application number: PCT/IN2007/000248
Authority: WO
Inventors: Pratima J. Bhagat
Original assignee: Bhagat Pratima J
Priority date: 2007-04-13
Filing date: 2007-06-21
Publication date: 2008-10-23
Also published as: WO2008126099A3

Abstract

A composition of matter for internal combustion engines comprising camphor, mint oil or mint powder, and a combustive fuel, methods of preparing and using the same, and products thereof.

Description

Exhaust Gas Treatment Catalysts

Background of the Invention

The present invention relates to exhaust gas treatment catalysts for internal combustion engines: Combustion engines emit, as the main pollutants in the exhaust

₅ gas, carbon monoxide (CO), unburnt hydrocarbons (uHC) and nitrogen oxides (NO and NO₂), a high percentage of which are converted into the harmless components water, carbon dioxide and nitrogen by modern exhaust gas treatment catalysts. Conversion takes place under substantially stoichiometric conditions, that is, the oxygen contained in the exhaust gas is controlled using a so-called lambda sensor in such a way that the l _Q oxidation of carbon monoxide and hydrocarbons and the reduction of nitrogen oxides to nitrogen can take place almost quantitatively.

There are limitations to the amount of carbon monoxide, unburnt hydrocarbons and nitrogen oxide that are emitted in automobile exhausts. Moreover, the emissions of these pollutants detrimentally affect the environment, and it has been suggested that 5 these pollutants have decreased the ozone layer protecting the earth. To further reduce the amount of these toxins emitted, one can seek to improve the catalytic activity of currently known catalysts used in internal combustion engines.

Typically, gas purifications are carried out by catalytic converters and are well known. Catalytic converters generally employ an oxidation catalytic metal. Some0 examples of catalytic converter units are described in U.S. Pat, Nos. 3,441 ,381 and 3,692,497. Such units consist of a catalytic reactor formed by an enlarged cylindrical- frustoconical housing having an inlet port and an outlet port. Located within the housing is a catalyst bed which is a honeycomb alumina-magnesia-silica monolithic ceramic- supported platinum catalyst. 5 Known exhaust gas catalyst units have employed a honeycomb, monolithic ceramic, supported platinum catalyst. These are made by coating a corrugated ceramic structure with an activated alumina and a palladium compound. The ceramics are ' typically made using alumina-silica, magnesia-alumiήa-silica (e.g., cordierite) or mixtures thereof. Palladium can be used alone or sometimes mixtures can be used such as platinum and palladium.

Many non-noble metals have been suggested for exhaust gas catalysts. Examples of other catalytic metals include V, Cr₁ Mn, Fe, Co, Ni, Cu₁ Zn, Zr, Na, Mo₁ Ru, Rh, Ag, W, Re, Os₁ Ir₁ Pb₁ Ba₁ and the like. These are generally used in an oxide form. They may be used individually or in various groupings such as Cu-Cr₁ Cu-Cr-V,

Cu-Pd, Mn-Pd, Ni-Cr and the like. They may be supported on the above monolithic ceramic support or on any other of numerous well-known catalyst supports such as granular, peiletized, or extruded alumina, silica, silica-alumina, zirconia, magnesia, alumina-magnesia and the like. Lean-burn engines capable of bringing an air/fuel ratio into a fuel-lean stage have been nowadays regarded as promising automobile internal combustion engines from the viewpoint of reduced fuel consumption. For exhaust gas purification related to the lean-burn engines, WO93/07363 and WO93/08383 propose to provide an NOx absorbent in the exhaust gas passage. The NOx absorbent can absorb NOx from the exhaust gases during the fuel-lean combustion and discharge the absorbed NOx when the O₂ concentration of the exhaust gases is lowered.

JP-A-8-299793 also proposes to provide a catalyst which comprises an NOx- absorbing component capable of absorbing NOx from the exhaust gases during the fuel-lean combustion and an NOx-reducing component capable of reducing the absorbed NOx in the exhaust gas passage.

There has been considerable interest in developing new combustion catalyst systems for use with gasoline, diesel and residual oil fuels. The use of an effective combustion catalyst may result in the following advantages: (i) improvement in the fuel economy; (ϋ) reduction of unburnt hydrocarbon and carbon monoxide emissions;

(iii) reduction of carbon formations; and

(iv) for an oil fired plant, a reduction in excess air requirement leading to an increased efficiency.

Cost of fuel, whether gasoline or diesel which are the most commonly used combustive fuels, is at a constant economical rise worldwide. Car manufacturers are working overtime to make fuel efficient engines to improve gas mileage while simultaneously keeping in mind the ecological factor. With more and more intensified atmospheric regulation of the automobile exhaust gases, there is a need for higher automobile exhaust gas elimination. Accordingly, there is a need for new ways of enhancing engine performance, improving gas mileage, and reducing carbon dioxide, and noxious related gas emissions from the exhaust.

Summary of the Invention

The present invention relates to a composition of matter for internal combustion engines that provides enhanced engine performance, improved gas mileage, and reduced carbon dioxide and noxious related gas emission from the exhaust.

In one aspect, the invention relates to a composition of matter comprising camphor, mint oil or mint powder, and a first combustive fuel in amounts effective to reduce carbon dioxide and pollutants emitted as exhaust from a motor when added to a gas tank relative to that produced utilizing the same amount of untreated combustive fuel added to the motor.

In one embodiment of this aspect of the invention, the composition of matter comprising the camphor, mint oil and the first combustive fuel further comprises a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different. -

Another aspect of the invention relates to a process for preparing the composition of matter of the present invention. This process comprises

(a) combining camphor and mint oil in combustive fuel; and

(b) thoroughly mixing said combination of step (a) until a substantially homogeneous mixture is obtained.

In one embodiment of this aspect of the invention, the process for preparing the composition of matter of the present invention further comprises adding the mixture obtained from step (b) to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different. Another aspect of the invention relates to a method for enhancing engine performance comprising adding an effective amount of the composition of matter comprising camphor, mint oil and a first combustive fuel to a gas tank in amount effective to reduce carbon dioxide and pollutants emitted as exhaust from a motor. In one embodiment of this aspect of the invention, the method of enhancing engine performance further comprises adding the first combustive fuel to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

Another aspect of the invention relates to a product containing: a composition of matter comprising camphor, mint oil and a first combustive fuel in an amount effective to reduce the pollutants emitted from a motor when added to a gas tank relative to that produced when the same amount of untreated combustive fuel is added to the gas tank.

In one embodiment of this aspect of the invention, the product further comprises a second combustive fuel in the gas tank to which the composition of matter comprising camphor, mint oil and the first combustive fuel is added, wherein the first combustive fuel and second combustive fuel can be the same or different.

Detailed Description of the Invention

The present invention relates to a composition of matter for internal combustion engines that provides enhanced engine performance, improved gas mileage, and reduced carbon dioxide and noxious related gas emission from the exhaust. The inventive composition can serve as an exhaust gas treatment catalyst.

In one aspect, the invention relates to a composition of matter comprising camphor, mint oil or mint powder, and a first combustive fuel in amounts effective to reduce carbon dioxide and pollutants emitted as exhaust from a motor when added to a gas tank relative to that produced utilizing the same amount of untreated combustive fuel added to the motor vehicle.

In another embodiment, the composition of matter comprising the camphor, mint oil and the first combustive fuel is added to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

Combustive fuel, for purposes of this invention, is intended to mean any combustive fuel that can be used as a source of fuel for any motor or engine. Non- limiting examples of motor vehicles include automobiles, trucks, propeller and jet airplanes, helicopters, motorboats, motorcycles, mopeds, tractors, lawnmowers, and the like.

In one embodiment, the combustive fuel employed in the inventive composition of matter is gasoline. Gasoline (gasoline in the United States and Canada; also know as petrol in Europe) is a gasolineeum-derived liquid mixture consisting primarily of hydrocarbons, used as fuel in internal combustion engines. The term gasoline is the common usage within the oil industry, even within companies that are not American. Often the term mogas (short for motor gasoline, for use in cars) is used to distinguish it from avgas, used in light aircraft. People in the United States use 360 million gallons (1.36 billion litres) of gasoline each day. Both mogas and avgas are contemplated to be within the scope of combustible fuel described herein. The term "gasoline" is not intended to include "diesel" as used herein.

In another embodiment, the combustive fuel employed in the inventive composition of matter is diesel fuel.

Other combustive fuels that can be employed in the invention include KD, which is a mixture of kerosene-diesel in the ratio of 70:30; CNG (compressed natural gas); and LPG (liquid petroleum gas).

While combustion catalysts of the present invention can have a broad application for all liquid hydrocarbon fuels, the present invention preferably relates to the development of combustion catalysts for gasoline and diesel fuels.

Mint oil is a plant essential oil. Mint oil, also known as mentha piperata, can be obtained commercially from, for example, Garry & Sun at Reno, Nevada. Mint oil or mint powder can both be employed in the present invention. Preferably, the weight ratio of mint oil to camphor is in a range from about 1 :50 to about 1 :2 by weight, preferably from about 1 :30 to about 1 :5 by weight, and more preferably at about 1 :10 by weight.

An effective amount of the mixture of mint oil and camphor is blended with a first combustive fuel, wherein the term combustive fuel is defined herein, to form the inventive composition of matter. In another embodiment, this catalyst, when added to a second combustive fuel utilized in a motor vehicle, improves gas mileage in the motor vehicle and/or reduces the amount of pollutants relative to that produced when the same amount of untreated combustive fuel is utilized as the combustive fuel in the motor vehicle. The first combustive fuel in the catalyst and the second combustive fuel in the motor vehicle can be the same or different.

Preferably, the mixture of camphor, mint oil and first combustive fuel is added in amounts from about 0.020 liters to about 0.025 liters, more preferably from about 0.025 liters to about 0.030 liters per 5 liters of second combustive fuel. In another embodiment, the volume ratio of camphor to mint ranges from about

5:1 to about 35:1 , preferable from about 7:1 to about 25:1 , more preferably from about 9:1 to about 16 to one. When the first combustive fuel employed is primarily gasoline, the ratio of camphor to mint by volume can range from about 5: 1 to about 15:1 , preferably from about 7:1 to about 12:1 , more preferably at about 9:1. For instance, 0.450 liters of camphor, 0.050 liters of mint oil and 0.500 liters of gasoline (first combustive fuel) can be combined to make 1 liter of gas treatment catalyst that can be added to a gas tank. When the first combustive fuel employed is primarily diesel, the ratio of camphor to mint by volume can range from about 8:1 to about 32:1 , preferably from about 12:1 to about 25:1 , more preferably at about 16:1. For instance, 0.400 liters of camphor, 0.0250 liters of mint oil, 0.0750 liters of petrol, and 0.50 liters of diesel to get 1 liter of exhaust gas treatment catalyst that can be added to a gas tank. The gas tank can optionally contain a second combustive fuel.

In another embodiment, the ratio of camphor and mint to the first combustive fuel by volume can range from about 2:1 to about 1 :2, preferably from about 1.5:1 to about -

1 :1.5, more preferably at about 1 :1.

Preferably, the composition comprising the camphor, mint and first combustive fuel is compatible and soluble in the second combustive fuel.

In another embodiment, the amount of camphor in the exhaust gas treatment 5 catalyst ranges from about 100 grams to about 1000 grams per liter of first combustive fuel and the amount of mint oil ranges from about 10 grams to about 100 grams per liter of first combustive fuel. Preferably, the amount of camphor in the exhaust gas treatment catalyst ranges from about 300 grams to about 700 grams per liter of first combustive fuel and the amount of mint oil ranges from about 30 grams to about 70 l o grams per liter of first combustive fuel. More preferably, the amount of camphor in the exhaust gas treatment catalyst is about 500 grams per liter of first combustive fuel and the amount of mint oil is about 50 grams per liter of first combustive fuel. This mixture of camphor, mint oil and first combustive fuel is the exhaust gas treatment catalyst of the invention, which can be added to a gasoline container, such as a gasoline tank in an 5 automobile, containing the appropriate second combustive fuel. Preferably, the catalyst comprising the mixture of camphor, mint oil and first combustive fuel is thoroughly mixed prior to adding it to the tank container containing the second combustive fuel. Preferably, the volume ratio of catalyst to second combustive fuel present in the gasoline container ranges from about 1:500 to about 10:500, more preferably from 0 about 0.5:500 to about 5:500, and even more preferably from about 1 :500 to about 3:500. These ratio ranges of catalyst to second combustive fuel are non-limiting wherein larger amounts of catalyst can be added.

The catalyst is compatible and is soluble in the second combustive fuel. Though not necessary, it is preferred that the first combustive fuel is the same as the second5 combustive fuel.

As used herein, the terms "catalyst" or "exhaust gas treatment catalyst" both refer to the mixture of mint oil, camphor and first combustive fuel, as described herein.

The catalyst utilized herein is a liquid solution so that it can be easily dispensed into the tank of the motor vehicle or into a container for storage. IN/ FA-21

ADDITIVES

The inventive composition of matter can further include other known additives utilized in the art, such as manganese dioxide (MnO₂), ferric oxide (Fe₂O₃), tin dioxide

(SnO₂), copper oxide (CuO), nickel oxide (NiO), cobaltic-cobaltous oxide (Co₃O₄), or mixtures and combinations thereof and the like. 5 According to these embodiments of the invention, the exhaust gas purification catalyst can further comprises at least one co-catalyst selected from the group consisting of antimony trioxide (Sb₂O₃), bismuth trioxide (Bi₂O₃), vanadium pentoxide

(V₂O₅), tin dioxide (SnO₂), and mixtures thereof l o Another aspect of the invention relates to a process for preparing the exhaust gas treatment catalyst of the present invention. This process comprises: a) combining camphor and mint oil in a first combustive fuel; and b) thoroughly mixing said combination of step (a) until a substantially homogeneous mixture is obtained. 5 in one embodiment of this aspect of the invention, the process for preparing the composition of matter of the present invention further comprises adding the mixture obtained from step (b) to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

In another embodiment of this aspect of the invention, the camphor and the mint0 oil are mixed together and this mixture is added to the first combustive fuel. In another embodiment, the camphor is mixed with the first combustive fuel, and to this mixture is added the mint oil. In a third embodiment, the mint oil is mixed with the first combustive fuel, and to this mixture is added to the camphor. In a fourth embodiment, the camphor, mint oil and first combustive fuel are all mixed together. Preferably, in each of these₅ four embodiments, the mixture of first combustive fuel, mint oil, and camphor is thoroughly mixed.

In another embodiment, gasoline is the first combustive fuel used in the process for preparing the exhaust gas treatment catalyst. In another embodiment, diesel is the first combustive fuel used in the process for preparing the exhaust gas treatment catalyst. Although the catalysts of the present invention are preferably used with diesel or gasoline, they can also be used in conjunction with other liquid petroleum distillate fuels such as kerosene, jet engine fuel, and the like. In the process for utilizing the exhaust gas treatment catalyst, a small quantity of the gasoline catalyst or diesel catalyst can be added to the second combustive fuel, e.g. gasoline or diesel, respectively, either at the sourcing outlet or to its entire supply. Alternatively, a small quantity of catalyst can be added when filling a gasoline tank containing gasoline or diesel fuel. The catalyst preferably is present in at least about 0.0001% (v/v) of the second combustive fuel, although a larger percentage may be utilized. Preferably, the catalyst is present in an amount ranging from 0.01 % to about 5% (v/v) and more preferably from about 0.05% to about 3%, and most preferably, from about 0.1% to about 1 %; however, a higher percentage of the catalyst can be added to the second combustive fuel. In one embodiment, the amount of camphor used in the process for preparing an exhaust gas treatment catalyst ranges from about 100 grams to about 1000 grams per liter of second combustive fuel and the amount of mint oil ranges from about 10 grams to about 100 grams per liter of second combustive fuel. Preferably, the amount of camphor used in the process for preparing an exhaust gas treatment catalyst ranges from about 300 grams to about 700 grams per liter of second combustive fuel and the amount of mint oil ranges from about 30 grams to about 70 grams per liter of second combustive fuel. More preferably, the amount of camphor used in the process for preparing an exhaust gas treatment catalyst is about 500 grams per liter of second combustive fuel and the amount of mint oil is about 50 grams per liter of second combustive fuel. Another aspect of the invention relates to a method for enhancing engine performance comprising adding an effective amount of the composition of matter comprising camphor, mint oil and a first combustive fuel to a gas tank in amount effective to reduce carbon dioxide and pollutants emitted as exhaust from a motor. In one embodiment, the method of enhancing engine performance further comprises adding the first combustive fuel to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

In another embodiment, gasoline, including diesel fuel or other hydrocarbon fuel utilized in the art, is the second combustive fuel used in the method for enhancing engine performance. It is preferred that the first combustive fuel utilized in making the catalyst is the same as the second combustive fuel. Preferably, the first combustive fuel used in the exhaust gas treatment catalyst of this embodiment and the second combustive fuel is gasoline. In another embodiment, diesel is the second combustive fuel used in the method for enhancing engine performance. Preferably, the first and second combustive fuel used in the exhaust gas treatment catalyst of this embodiment is diesel.

In another embodiment, where gasoline is the second combustive fuel, the method for enhancing engine performance includes using a ratio of exhaust gas treatment catalyst to gasoline ranging from about 1 :200 to about 1 :800 by volume.

Preferably, the ratio of the exhaust gas treatment catalyst to gasoline ranges from about 1 :400 to about 1 :600 by volume. More preferably, the ratio of the exhaust gas treatment catalyst to gasoline is about 1 :500 by volume.

In another embodiment where diesel fuel is the second combustive fuel, the method for enhancing engine performance includes using a ratio of the exhaust gas treatment catalyst to diesel ranging from about 1 :100 to about 1 :500 by volume. Preferably, the ratio of the exhaust gas treatment catalyst to diesel ranges from about 1 :200 to about 1 :300. More preferably, the ratio of the exhaust gas treatment catalyst to diesel is about 1 :250. Another aspect of the invention relates to a product containing: a composition of matter comprising camphor, mint oil and a first combustive fuel in an amount effective to reduce the pollutants emitted from a motor when added to a gas tank relative to that produced when the same amount of untreated combustive fuel is added to the gas tank. In one embodiment of this aspect of the invention, the product further comprises a second combustive fuel in the gas tank to which the composition of matter comprising camphor, mint oil and the first combustive fuel is added, wherein the first combustive fuel and second combustive fuel can be the same or different.

USAGE AND BENEFITS:

When gasoline is the second combustive fuel, to use the gasoline based exhaust gas treatment catalyst in a preferred embodiment, one adds an amount of the catalyst to the gasoline in a ratio ranging from about 1 ltr:200ltrs to about 1 ltr:800ltrs, preferably from about 1 ltr:400ltrs to about 1 ltr:600ltrs, more preferably about 1 ltr:500ϊtr. When diesel fuel is the second combustive fuel, to use the diesel based exhaust gas treatment catalyst, in a preferred embodiment one can typically adds an amount of diesel catalyst to the diesel fuel in a ratio ranging from about 1 ltr:100ltrs to about 1 ItπδOOItrs, preferably from about 1 ltr:200ltrs to about 1 ltr:300ltrs, more preferably about 1ltr:250ltr to diesel fuel.

TESTING

Vehicle emissions have been identified as a major contributor to air pollution. As such the Environmental Protection Agency EPA in all developed and developing countries have mandated vehicle emission inspection and maintenances programs.

Among the most advanced and accurate test methods are Transient Mass Emission Inspection (TMEI) such as thelM240 andlM147, in TMEI a vehicle is tested at variety of velocities, accelerations and decelerations. These velocities, accelerations and decelerations (collectively known as a "drive trace") are representative of the "real world" driving conditions and engine loads. For example an IM240 test includes a series of accelerations and decelerations and speeds ranging from zero miles per hour (MPH) to fifty six MPH over a 240 second testing period. For the duration of the testing period emissions including burnt hydrocarbons (bHC) carbon monoxide (CO) carbon dioxide J. IN / f A-.U U

(CO2) and the oxides of nitrogen (NOx) wherein x represents 1 or 2 are individually accumulated over the drive test and normalized for the distance traveled. This recorded mass per distance normally reported grams per mile (GPM) is then reported as the vehicle's test score. The vehicle's test score for each accumulated pollutant is compared to a federal defined standard for that vehicle and that particular pollutant. A score exceeding the defined standard is considered a failure.

The gasoline and diesel based exhaust gas treatment catalyst each can improve combustion, dramatically reduce carbon dioxide, noxious gas emission from the exhaust by as much as 66% and make a motor vehicle conform to European and United States 0 standards.

The exhaust gas treatment catalyst of the present invention is generally inexpensive, and a very small ratio is can be used to get the desired result. Preferably, the catalyst is added in amounts of about 0.25g to about 0.3Og to 5ltrs of combustive fuel. 5 These catalysts help save fuel by enhancing combustion and generating twice the burnt hydrocarbon level providing extra mileage per gallon or liter (e.g. without the exhaust gas treatment catalyst the vehicle's test score for each accumulated pollutant is 01.1% by volume).

By adding the exhaust gas treatment catalyst, the vehicle's test score for each0 accumulated pollutant read 00.02% by volume. The authorized permissible emission limit should not exceed 3% by volume (Indian equivalent for EPA Test).

The intent or objective of these vehicle emission and maintenance programs is to identify vehicles which are releasing more polluting emission than is acceptable. Vehicles that are identified of not performing acceptably must then be appropriately5 repaired or phased out.

The following Examples illustrate the present invention. It is to be understood, however, that the invention as fully described herein and as recited in the claims, is not intended to be limited by details of the following: Examples Example 1

A mid size motor vehicle with a factory claim fuel efficiency of 15km/ltr was driven on a straight track with 1 ltr of regular combustive fuel gasoline till the 1 ltr fuel was exhausted. 5 The odometer read 14.5kms.

The vehicle's test score for each accumulated pollutant read 1.1% by volume.

Example 2

Another test was carried out adding the exhaust gas treatment catalyst. The motor vehicle was driven on the same straight track till the 1 ltr fuel was exhausted. l _Q The odometer read 20km/ltr.

The vehicle's test score for each accumulated pollutant read 0.02% by volume.

The odometer reading at halt displayed 21721.5kms at 14.5kms.

The adjustable odometer read 14.5kms.

The vehicle was taken for a PUC Test, (Indian equivalent for EPA Test). The 5 apparatus used for the test was NEPTANE - Gas analyzer Model no. T-D

2040/EGA200M/C no.9902NDGA21651 , authorized by the India Traffic Control Dept. RTO.

The test vehicle PUC read 1.1% by volume.

The authorized permissible emission limit should not exceed 3% by volume. 0 The results of this test demonstrates that the exhaust gas treatment catalysts dramatically reduced the vehicle's test score for from Example 1 for each accumulated pollutant from 1.1 % to 0.02% by volume.

Example 3 Adding Catalyst 5 The' fuel tank was emptied and 1ltr blended exhaust gas treatment catalyst Petrol was filled in the fuel tank. The odometer check read 21737.0 km and the adjustable alternate odometer was fixed at 0km.

The motor vehicle was driven on the same straight track till the 1ltr fuel was exhausted.

The odometer on halt read 21757kms at 20kms.

The adjustable odometer read 20kms.

The vehicle was taken for a PUC test.

The test vehicle PUC read 0.02% by volume.

The authorized permissible emission limit should not exceed 3% by volume. The results of this test demonstrates that the exhaust gas treatment catalysts dramatically reduced the vehicle's test score from Example 1 from 1.1% to 0.02% by volume.

Example 4

A mid size motor vehicle with a factory fuel efficiency claim of 15km/ltr was selected for the exhaust gas treatment catalyst claim and purpose. a) The fuel tank was emptied and 1 ltr of regular gasoline (Petrol) was filled in the fuel tank. b) The odometer check read 21707.0 km. c) The adjustable alternate odometer was fixed at 0 km. d) The motor vehicle was driven on a straight track till the 1 ltr fuel was exhausted. e) The odometer reading at halt displayed 21721.5kms at 14.5kms. f) The adjustable odometer read 14.5kms. g) The vehicle was taken for a PUC Test. The apparatus used for the test was NEPTANE - Gas analyzer Model no. T-D 2040/EGA200M/C no.9902NDGA21651.

(Authorized by the India Traffic Control Dept. RTO). h) The vehicle's test score for each accumulated pollutant read 1.1 % by volume. Example 5 Adding Catalyst a) The fuel tank was emptied andiltr blended exhaust gas treatment catalyst Petrol was filled in the fuel tank. b) The odometer check read 21737.0 km. c) The adjustable alternate odometer was fixed at Okm. d) The motor vehicle was driven on the same straight track till the 1 ltr fuel was exhausted. e) The odometer on halt read 21757kms a 20kms. f) The adjustable odometer read 20kms. g) The vehicle was taken for a vehicle test score. h) The vehicle's test score for each accumulated pollutant read 0.02% by volume.

The exhaust fume when tested showed considerable low or practically no presence of carbon related particles, deposits of sulphur and other toxic gas. The results of this test also demonstrates that the exhaust gas treatment catalysts dramatically reduced the vehicle's test score from Example 4 from 1.1% to 0.02% by volume.

Example 6 a) A mid size motor vehicle with a factory fuel efficiency claim of 15km/ltr was selected for the exhaust gas treatment catalyst claim and purpose. b) The fuel tank was emptied and 1 ltr blended exhaust gas treatment catalyst (The mixture is added in amounts from O.OOδltrs to about O.OOδltrs: 1 ltrs of combustive fuel (Gasoline/Petrol) c) The motor vehicle was driven on the same straight track till the 1 ltr fuel was exhausted. d) The adjustable odometer read 20kms a total of approximate 6km/ltr extra mileage to a litre. (The regular gasoline had given a 14.5km/ltr) e) The vehicle was taken for a PUC Test (equivalent to EPA) f) The apparatus used for the test was NEPTANE - Gas analyzer Model no. T-D 2040/EGA200M/C no.9902NDGA21651.

The vehicle's test score for each accumulated pollutant read 0.02% by volume. The authorized permissible emission limit should not exceed 3% by volume

The percentage of CO in the exhaust gas analysis showed an improvement from 0.78% without using the exhaust gas treatment catalyst to 0.42% using the exhaust gas treatment catalyst. In addition, the percentage of burnt hydrocarbons (bHC) present in the exhaust gas analysis showed an improvement from 90 ppm (parts per million) without using the exhaust gas treatment catalyst to about 150 ppm using the gasoline exhaust gas treatment catalyst.

The above results show that the gasoline and (diesel) catalyst both increase the hydrocarbon level (thereby reducing the unburnt hydrocarbon levels) by about two times in the engine thereby generating more mileage per liter/gallon. Approximate 6km/ltr. These results also show that the gasoline and diesel type catalyst improve combustion dramatically reducing noxious related gas emission from the exhaust, such as carbon monoxide.

The vehicle's test score for each accumulated pollutant read 1.1 % by volume (without catalyst) to 0.02% by volume (Gas blended with catalyst).

Example 7

About one gallon of regular gasoline or diesel fuel was added to a fuel container, such as a jerry can and is connected to the carburetor of a motor vehicle. The mileage meter was recorded, and the vehicle is driven on a clean straight low traffic road until the fuel was exhausted.

Results: a) The odometer check read 21707.0 km. before start. b) Odometer check read 21737.0 km on halt. T/IN2007/000248

c) The gas mileage was 14.5km/lte/gallon. d) The vehicle's test score for each accumulated pollutant read 1.1% by volume.

Example 8

A fuel tank of a motor vehicle was emptied and 1 ltr of blended exhaust gas treatment catalyst Petrol was filled in the fuel tank. The mixture was added in amounts from O.OOδltrs to about 0.006ltrs: 1ltrs of combustive fuel (Gasoline/Petrol). a) The odometer check read 21737 km at start. b) The odometer on halt read 21757kms c) The gas mileage was 20kms/ltr/gallon. d) The vehicle's test score for each accumulated pollutant read 0.02% by volume.

Next, about one gallon of regular gasoline or diesel fuel was added to a fuel container, such as a jerry can mixed with a very small ratio of camphor and mint oil to first combustive fuel, e.g., O.OOδltrs to about 0.006ltrs:1ltr of a first combustive fuel of gasoline or diesel. The fuel container is connected to the carburetor of a motor vehicle. The mileage meter was recorded, and the vehicle was driven on a clean straight low traffic road till the fuel was exhausted.

RESULTS:

There was an increase in gas mileage by about θkm/ltr using the exhaust gas treatment catalyst.

Considerable low or practically no presence of carbon related particles, deposits of sulfur and other toxic gas were present. There was an 80-90% reduction in accumulated pollutant test score reading. Example 9

Formula for Gasoline based exhaust gas treatment catalyst: 112kg of camphor and 50gms of mint oil was dissolved in 1ltr of gasoline.

Example 10 5 Formula for diesel based exhaust gas treatment catalyst:

1kg of camphor and IOOgrams of mint oil were dissolved in 1ltr of diesel fuel.

Using the exhaust gas treatment catalyst of the present invention, carbon deposits in the carburetor get disintegrated and dissolved offering smooth engine performance and a longer maintenance free engine life. l Q The vehicle's test score for each accumulated pollutant read 01.1% by volume

(without catalyst) to 00.02% by volume (gas blended with catalyst).

The gasoline and diesel based exhaust gas treatment catalyst each improve combustion, dramatically reducing carbon dioxide, and noxious gas emission such as 5 carbon monoxide from the exhaust as much as 66%, and making the vehicle conform to

European and United States standard.

The above embodiments are given to illustrate the scope and spirit of the invention. The embodiments described herein will make apparent to those skilled in the art of other embodiments. These other embodiments are within the contemplation of the >o present invention. Therefore the present invention should be linked only by the appended claims.

Claims

We claim:

1. A composition of matter comprising camphor, mint oil or mint powder, and a first combustive fuel in amounts effective to reduce carbon dioxide and pollutants emitted as exhaust from a motor when added to a gas tank relative to that produced utilizing the

5 same amount of untreated combustive fuel added to the motor.

2. The composition of matter according to claim 1 , further comprises a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

3. The exhaust gas treatment catalyst according to claim 1 , wherein the first l o combustive fuel is gasoline.

4. The composition of matter according to claim 1 , wherein the first combustive fuel is diesel.

5. The composition of matter according to claim 1 , wherein the amount of camphor ranges from about 100 grams to about 1000 grams per liter of first combustive fuel and

15 the amount of mint oil ranges from about 10 grams to about 100 grams per liter of first combustive fuel.

6. The composition of matter according to claim 1, wherein the amount of camphor ranges from about 300 grams to about 700 grams per liter of first combustive fuel and the amount of mint oil ranges from about 30 grams to about 70 grams per liter of first Q combustive fuel.

7. The composition of matter according to claim 1, wherein the amount of camphor is about 500 grams per liter of first combustive fuel and the amount of mint oil is about 50 grams per liter of first combustive fuel.

8. The composition of matter according to claim 1, wherein the ratio of mint oil to camphor ranges from about 1 :50 to about 1 :2 by weight.

9. The composition of matter according to claim 1 , wherein the ratio of mint oil to camphor ranges from about 1 :30 to about 1 :5 by weight.

10. The composition of matter according to claim 1 , wherein the ratio of mint oil to camphor is about 1 : 10 by weight.

11. The composition of matter according to claim 1 , further comprising an additive.

12. The composition of matter according to claim 1 , further comprising at least one co- catalyst.

13. The composition of matter according to claim 1 , wherein the mixture of camphor, mint oil and first combustive fuel is added in amounts ranging from about 0.020 liters to about 0.025 liters per 5 liters of second combustive fuel.

14. The composition of matter according to claim 1, wherein the mixture of camphor, mint oil and first combustive fuel is added in amounts ranging from about 0.025 liters to about 0.030 liters per 5 liters of second combustive fuel.

15. The composition of matter according to claim 1, wherein the volume ratio of camphor to mint ranges from about 5: 1 to about 35: 1.

16. The composition of matter according to claim 1 , wherein the volume ratio of camphor to mint ranges from about 7:1 to about 25:1.

17. The composition of matter according to claim 1 , wherein the volume ratio of camphor to mint ranges from about 9:1 to about 16:1.

5 18. The composition of matter according to claim 1 , wherein the first combustive fuel is gasoline, and the ratio of camphor to mint by volume ranges from about 5:1 to about 15:1.

19. The composition of matter according to claim 1 , wherein the first combustive fuel is gasoline, and the ratio of camphor to mint by volume ranges from about 7:1 to about

.0 12:1.

20. The composition of matter according to claim 1 , wherein the first combustive fuel is gasoline, and the ratio of camphor to mint by volume is about 9:1.

21. The composition of matter according to claim 1 , wherein said composition comprises 0.450 liters of camphor, 0.050 liters of mint oil and 0.500 liters of gasoline

5 22. The composition of matter according to claim 1 , wherein the first combustive fuel is diesel, the ratio of camphor to mint by volume ranges from about 8:1 to about 32:1.

23. The composition of matter according to claim 1 , wherein the first combustive fuel is gasoline, and the ratio of camphor to mint by volume ranges from about from about 12:1 to about 25:1.

>0 24. The composition of matter according to claim 1 , wherein the first combustive fuel is gasoline, and the ratio of camphor to mint by volume is about 16:1.

25. The composition of matter according to claim 1 , wherein said composition comprises 0.400 liters of camphor, 0.0250 liters of mint oil, 0.0750 liters of petrol, and 0.50 liters of diesel.

26. The composition of matter according to claim 1 , wherein the ratio of camphor and mint to the first combustive fuel by volume ranges from about 2:1 to about 1 :2.

27. The composition of matter according to claim 1 , wherein the ratio of camphor and mint to the first combustive fuel by volume ranges from about 1.5:1 to about 1:1.5.

28. The composition of matter according to claim 1 , wherein the ratio of camphor and mint to the first combustive fuel by volume is about 1 :1.

29. A process for preparing a composition of matter according to claim 1 , which comprises

(a) combining said camphor and said mint oil and said first combustive fuel; and

30. The process according to claim 29, further comprises adding the mixture obtained from step (b) to a second combustive fuel in the gas tank, wherein the first combustive fuel and second combustive fuel can be the same or different.

31. The process for preparing a composition of matter according to claim 29, wherein the first combustive fuel is gasoline.

32. The process for preparing a composition of matter according to claim 29, wherein the first combustive fuel is diesel.

33. The process for preparing a composition of matter according to claim 29, wherein the amount of camphor ranges from about 100 grams to about 1000 grams per liter of first combustive fuel and the amount of mint oil ranges from about 10 grams to about 100 grams per liter of first combustive fuel.

5 34. The process for preparing a composition of matter according to claim 29, wherein the amount of camphor ranges from about 300 grams to about 700 grams per liter of first combustive fuel and the amount of. mint oil ranges from about 30 grams to about 70 grams per liter of first combustive fuel.

35. The process for preparing a composition of matter according to claim 29, wherein ! o the amount of camphor is about 500 grams per liter of first combustive fuel and the amount of mint oil is about 50 grams per liter of first combustive fuel.

36. A method for enhancing engine performance comprising adding an effective amount of the composition of matter according to claim 1 to a second combustive fuel, said catalyst being present in at least about 0.001% (w/w). 5

37. A method for enhancing engine performance comprising adding an effective amount of the composition of matter according to claim 36 to gasoline, said catalyst being present in at least about 0.001% (w/w).

38. The method for enhancing engine performance according to claim 36, wherein the ratio of camphor, mint oil and first combustive fuel to second combustive fuel ranges 0 from about 1 :200 to about 1 :800 by volume.

39. The method for enhancing engine performance according to claim 36, wherein the ratio of camphor, mint oil and first combustive fuel to second combustive fuel ranges from about 1:400 to about 1 :600 by volume.

40. The method for enhancing engine performance according to claim 36, wherein the ratio of camphor, mint oil and first combustive fuel to second combustive fuel is about

1 :500 by volume.

41. A method for enhancing engine performance comprising adding an effective amount of the composition of matter according to claim 4 to diesel, said catalyst being present in at least about 0.001% (w/w).

42. The method for enhancing engine performance according to claim 41 , wherein the ratio of the camphor, mint oil and first combustive fuel to second combustive fuel ranges from about 1 :100 to about 1 :500 by volume.

43. The method for enhancing engine performance according to claim 41 , wherein the ratio of the camphor, mint oil and first combustive fuel to second combustive fuel ranges from about 1 :200 to about 1 :300 by volume.

44. The method for enhancing engine performance according to claim 41 , wherein the ratio of camphor, mint oil and first combustive fuel to second combustive fuel is about 1 :250 by volume.

45. A product comprising: a composition of matter comprising camphor, mint oil and a first combustive fuel in an amount effective to reduce the pollutants emitted from a motor when added to a gas tank relative to that produced when the same amount of untreated combustive fuel is added to the gas tank. .

46. The product according to claim 45, further comprising a second combustive fuel in the gas tank to which the composition of matter and the first combustive fuel is added, wherein the first combustive fuel and second combustive fuel can be the same or different.

47. The product according to claim 46, wherein the catalyst is present in at least 0.001% (v/v).

48. The product according to claim 47, wherein the ratio of exhaust gas treatment catalyst to second combustive fuel is from about 0.1 :500 to about 10:500.

49. The product according to claim 47, wherein the ratio of exhaust gas treatmentO catalyst to second combustive fuel is from about 0.5:500 to about 5:500.

50. The product according to claim 47, wherein the ratio of exhaust gas treatment catalyst to second combustive fuel is about 1 :500 to about 3:500.