GB2543023A - Road Fuel Comprising a Histology Solvent - Google Patents

Road Fuel Comprising a Histology Solvent Download PDF

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Publication number
GB2543023A
GB2543023A GB1514423.1A GB201514423A GB2543023A GB 2543023 A GB2543023 A GB 2543023A GB 201514423 A GB201514423 A GB 201514423A GB 2543023 A GB2543023 A GB 2543023A
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GB
United Kingdom
Prior art keywords
histology
solvent
solvents
ethanol
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1514423.1A
Other versions
GB201514423D0 (en
Inventor
Clayson Edward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ACQUASCIENCE Ltd
Original Assignee
ACQUASCIENCE Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ACQUASCIENCE Ltd filed Critical ACQUASCIENCE Ltd
Priority to GB1514423.1A priority Critical patent/GB2543023A/en
Publication of GB201514423D0 publication Critical patent/GB201514423D0/en
Publication of GB2543023A publication Critical patent/GB2543023A/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
    • C10L2200/0295—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/08—Drying or removing water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/12—Regeneration of a solvent, catalyst, adsorbent or any other component used to treat or prepare a fuel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
    • C10L2290/543—Distillation, fractionation or rectification for separating fractions, components or impurities during preparation or upgrading of a fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A method for production of a road fuel from a mixture of used histology solvents (e.g. ethanol, water and optionally formalin, xylene and/or methanol) comprises the steps of collecting the mixture of solvents e.g. from hospital histology laboratories and purification thereof, for example by fractional distillation. The resulting road fuel comprises a histology solvent.

Description

ROAD FUEL COMPRISING A HISTOLOGY SOLVENT
The present invention relates to road fuel comprising a histology solvent; the use of a histology solvent in the production of a road fuel and a method for production of a road fuel. The method comprises collection and purification of histology solvents, for example from hospital histology laboratories,
Background of the Invention
Histology laboratories create significant quantities pf solvent
Histology (compound of the Greek words: ιστός histos "tissue", and -λόγια -logia "science") is the study of the microscopic anatomy of cells and tissues of plants and animals, it is typically performed by examining cells and tissues under a light microscope or electron microscope, which have been sectioned, stained and mounted on a microscope slide. Histological studies may be conducted using tissue culture, where live human or animal cells are isolated and maintained in an ardfieia! environment for various research projects. The ability to visualize or differentially identify microscopic structures is frequently enhanced through the use of histological stains or solvents. Histology is an essential tool of biology and medicine.
The problem of disposing of waste histology solvents has been solved in part unti! now typically by burning the waste solvents. However, this is not environmentally friendly.
In light of these problems, various proposals hpd been made, but there remains a need for improved methods which address one or more Of the problems presented by prior art arrangements,
Remarkably, the invention provides a new method for disposing; of histology solvents which can be used to yield a road fuel for converted vehicles. Advantageously, this provides a useful fuel.
Summary of the Invention
In accordance with a first aspect of the present invention there is provided a road fuel comprising a purified histology solvent.
Ethanol has previously been used as a road fuel but the conversion of histology waste into fuel has not preyiousiy been carried out. It has now been appreciated that denatured alcohol and other solvents are supplied to histology laboratories and collected as waste, mixed with other contaminants, including xylene and formalin. By removal of the contaminants, it is possible to produce a high quality fuei.
Preferably, the histology solvent is substantially purified.
Preferably, the purified histology solvent comprises a mixture of solvents of ethyl alcohol (ethanol) and from about 4% to about 12% water by volume. More preferably, the purified histology solvent comprises a mixture of solvents of ethyl alcohol (ethanol) and from about 4J% to about 10% water by volume.
Preferably, there are substantially ho other solvents in the mixture.,
Alternatively, the mixture pf solvents comprises trace amoUritS of brie or more additional solvents selected from the group consisting of neutral buffered formalin, xylene and methanol.
In this regard, the mixture of solvents may comprise: ethanol, water, formalin and preferably substantially no other solvent; ethanol, water, xylene and preferably Substantially no other solvent; ethanol, water, methanol and preferably substantially no other solvent; ethanol, water, formalin, xylene and preferably substantially no other solvent; ethanol, water, formalin, methanol and preferably substantially no other solvent; ethanol, water, xylene, methanol and preferably substantially no other solvent; or ethanol, water, formalin, xylene, methanol and preferably substantially no other solvent.
Preferably, the histology solvent is obtainable from a mixture of histology solvents produced as waste product from a histology laboratory, for example from a hospital histology laboratory.
In a second aspect the invention provides the use of a histology solvent in the production of a road fuel.
In a third aspect, the invention provides a method for production of a road fuel which comprises the steps of collecting a mixture of histology solvents and purification of one or more histoiogy solvents from the mixture to provide a road fuel.
Preferably, the method includes at least the purification steps of fraction distillation.
Preferably, fractional distillation is carried out using the following equipment and conditions:
Preferably, fractional distillation is carried out at conditions of atmospheric pressure.
Preferably, fractional distillation at less than 100°C is carried out. More preferably fractional distillation range is carried out at about 70 °C to about 95 °C.
Advantageously, this minimises the amount of contamination from unwanted volatile chemicals.
Preferably, the distillate is additionally subjected to chemical drying to increase the percentage of ethanol obtained in the purified histology solvent by volume. Preferably, this is carried out with zeolites (molecular sieves) to remove water.
Fractional distillation can be completed with any suitable commerciaiiy available equipment, although Formeco distillation units are preferred. It is known that ethano! distils at 78°C so a temperature from about 60°C to about 150°C incorporates all useful reagents. However if distillation is carried out at above 100°C, it increases the likelihood of contaminates in the distillate.
Preferably, solvent is collected from Hospitals in containers* which are emptied into distillation units. In an embodiment, the containers are capable of holding a volume of about 5 litres.
Preferably* the distillation parameters are set on the distillation units and the required distillate is collected in a large vessel. All waste is removed from the distillation unit Chamber after each cycle.
Advantageously, the steps of carrying out fractionai distillation yields a substantially purified road fuel. This is advantageous, because the fuel burns consistently and cleanly.
Contaminants, including xylene and/or formalin are substantially removed during the purification. Therefore, preferably, the road fuel substantially excludes xylene. Preferably, the road fuel substantially excludes formalin.
Brief Description of We Drawings
The invention will now be described in detail by reference to the accompanying drawings in which;
Figure 1 shows a vessel typically used for collecting waste solvent; and
Figure 2 shows a view of the equipment used in a method according to the invention. VVaste solvents are collected into 1000 litre IBC's prior to being pumped into a fractional distillation unit. Thereafter the purified reagent is collected into the IBC (shown in the figure on the right, Ail waste / unusable material is left behind in the boiler (3).
Metafted Description of the Invention it will be appreciated that aspects, embodiments and preferred features of the invention hawe been described herein in a way that aiiows the specification to be Written in a dear and concise way1;, However, uniess circumstances cleariy dictate otherwise, aspects, embodiments and preferred features can be variously combined or separated in accordance with the invention. In a preferred embodiment, a device in accordance with the invention comprises all aspects of the invention.
Within the content of this specification, the word "about" means preferably plus or minus 20%, more preferably plus or minus 10%, even more preferably plus or minus 5%, most preferably plus or minus 2%.
Within the context of this specification, the word "comprises" means "includes, among other things" and should not be construed to mean "consists of only".
Within the context of this specification, the word ^substantially" means preferably at least §0%, more preferably 95%, even more preferably 98%, most preferably 99%.
Within the context of this specification, the term "road fuel" means a material suitable for being consumed to produce energy for powering a vehicle.
With reference to Figures 1 and 2, the invention provides a road fuel comprising a: histology solvent (1).
The histology solvent (1) is obtainable from a mixture of histology solvents produced as waste products from a hospital histology laboratory. Thus, the invention provides the use Of a histology solvent in the production of the road fuel.
The histology solvent is substantially purified and comprises a mixture of solvents of ethyl alcohol (ethanol) and from about 4.6¾¾ to about 10¾¾ water by volume. In an embodiment there are substantially no other solvents in the mixture.
In an alternative embodiment the mixture of solvents comprises trace amounts of one or more additional solvents selected from the group consisting of neutral buffered formalin, xylene and methanol.
In thisregard, the mixture of solvents may comprise: :ethanol> water, formalin and preferably substantially no other solvent; ethanol, water, xylene and preferably substantially no other solvent; ethanol, water, methanol and preferably substantially no other solvent; ethanol, water, formalin, xylene and preferably substantially no other solvent; ethanol, water, formalin, methanol andi preferably substantially no other solvent; ethanol, water, xylene, methanol and preferably substantially no other solvent; or ethanol, water, formalin^ xylene, methanol and preferably substantially no other solvent.
The hisfoiep solvent is obtainableTram a mixture of histology solvents produced as waste product frama histology laboratory, for example from a hospital histology laboratory. A method for production of a raad fuel comp rises the steps of collecting a mixture of histology solvents and purification of one or more histology solvents from the mixture to provide a road fuel.
The method includes at least the purification steps of fraction distillation at about 70 °C to about 95¾ The distillate is additionally subjected to chemical drying to increase the percentage of ethanol obtainedl in the purified histology solvent by volume. This ts carried out with zeolites (molecular sieves) to remove water.
Fractional distillation is carried out using Formeeo distillation units (2). In this regard, solvent (T): is collected tram hospitals in 5 litre containers, which are emptied info the distillation units p). Thereafter distillation parameters are set on the distillation units (2) and the required distillate is collected in a large vessel. All waste is removed from the distillation unit chamber after each distillation cycle;
Advantageously, contaminants; including xylene and formalin are removed during the purification. In addition, advantageously, fractional distillation permits the recovery of the alcohol and use in ethanol compatible road vehicles,
The above described embodiments base been given by way of example only, and the skilled reader Will naturally appreciate that many variations could be made thereto without departing from the scope of the invention.

Claims (10)

1. A road fuel comprising a substantially purified histology solvent, 2* A road fuel according to claim 1 wherein the substantially purified histology solvent comprises a mixture of solvents of ethyl alcohol (ethanol) and from about 4% to about 12% water by volume. 3i A road fuel according to claim 1 or 2 wherein the purified histology solvent comprises from about 4.6% to about 10% water by volume.
4. A road fuel according to any One of the preceding claims wherein there are substantially no Other solvents in the mixture. Si A road fuel according to any one of the preceding claims wherein the mixture of solvents comprises trace amounts of one or more additional solvents selected from the group consisting of neutral buffered formalin, xylene and methanol. 6; A road fuel according to any One Of the preceding claims wherein the mixture of solvents comprises: a) ethanol, water, formalin and optionally substantially no other Solvent;; b) ethanol, water, xylene and optionally substantially no other solvent; c) ethanol, water, methanol and optionally substantially ho other solvent; d) ethanol/ water, formalin, xylene and optionally substantially no other solvent; e) ethanol, water, formalin, methanol and optionally substantially no other solvent; f) ethanol, water, xylene, methanoland optionally substantially no other solvent; or g) ethanol, water; formalin, xylene, methanol and optionally substantially no Other solvent.
7, A road fuel according to any one of the preceding claims wherein the histology solvent is obtainable from a mixture of histology solvents produced as waste product from a histology laboratory, for example from a hospital histology laboratory.
8, Use Of a histology solvent in the production of a road fuel.
9, Use according to claim 8 wherein the road fuel is according to any one of claims 1 to 8.
10, A method for production of a road fuei which comprises the steps of collecting a mixture of histology solvents and purification of one or more histology solvents from the mixture to provide a road fuel.
11, A method according to claim 10 which comprises the step of purifying the mixture of histology solvents including at least the purification steps of fraction distillation to provide a distillate.
12, The method according to Claim 11 wherein the fractional distillation is earned out at less than 1QQ°C, optionally wherein fractional distillation is carried out at about 70 °C to about 95 °C.
13, A method according to any one of claims II to 12 wherein the distillate is additionally subjected to chemical drying to increase the percentage of ethanol obtained in the purified histology solvent by volume. 1% A method according to claim 13 wherein chemical drying is carried out with zeolites (rnoieeuiar sieves) to remove water.
15, A road fuel, use of a road fuel or method substantially as described herein with reference to the accompanying Figures.
GB1514423.1A 2015-08-13 2015-08-13 Road Fuel Comprising a Histology Solvent Withdrawn GB2543023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1514423.1A GB2543023A (en) 2015-08-13 2015-08-13 Road Fuel Comprising a Histology Solvent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1514423.1A GB2543023A (en) 2015-08-13 2015-08-13 Road Fuel Comprising a Histology Solvent

Publications (2)

Publication Number Publication Date
GB201514423D0 GB201514423D0 (en) 2015-09-30
GB2543023A true GB2543023A (en) 2017-04-12

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GB1514423.1A Withdrawn GB2543023A (en) 2015-08-13 2015-08-13 Road Fuel Comprising a Histology Solvent

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2442726A (en) * 2006-10-10 2008-04-16 Pedro A Server Barcelo Process to obtain liquid hydrocarbons by cleavage of carbon and hydrogen molecules
KR101184125B1 (en) * 2011-10-17 2012-09-21 김창기 Reusing system and method of used- disposable diapers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2442726A (en) * 2006-10-10 2008-04-16 Pedro A Server Barcelo Process to obtain liquid hydrocarbons by cleavage of carbon and hydrogen molecules
KR101184125B1 (en) * 2011-10-17 2012-09-21 김창기 Reusing system and method of used- disposable diapers

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
http://acquascience.com/supply-disposal/, whole article, accessed on 31 January 2017 *
http://sciencing.com/uses-xylene-5544817.html, whole article, accessed on 31 January 2017. *
https://www.brinstrument.com/fractional-distillation/histology-pathology-solvent-recycling-blog, whole article, accessed on 31 January 2017 *
https://www.brinstrument.com/solvent-recycling-blog/, whole article, accessed on 31 January 2017 *

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Publication number Publication date
GB201514423D0 (en) 2015-09-30

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