Granted Patent
B2
US 12,486,405 · App. 16/854,540 · Granted Dec 2, 2025
Pigment and pigment production method
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Abstract
A novel pigment and a method to create the novel pigment are described. A raw material, such as municipal sewage sludge, municipal compost, food waste, agricultural waste, forestry waste, agroforestry waste, biomass, and/or livestock waste, are screened, cleaned, and/or prepared. The raw material is digested by microorganisms to create methane and a biosolid. The biosolid is dried and then carbonized to create a biochar. The biochar is ground into a powder pigment until a predetermined particle size is reached. The powder pigment having the predetermined particle size is applied to a media to create at least one product, such as an ink, a paint, a stain, a colored material, and/or a dye.
Claims (6)
1 . A method to create a pigment from a raw material, the method consisting of:
obtaining a dry biosolid from the raw material,
wherein the raw material consists of municipal sewage sludge;
carbonizing the dry biosolid using a heat source to heat a container containing the dry biosolid to create a biochar; and
reducing the size of the biochar until a predetermined particle size is reached to form a powder pigment,
wherein the carbonization of the dry biosolid to create the biochar occurs via gasification.
Continuity (2)
Provisional Application
62838475
· Apr 25, 2019
References Cited (40)
US 3962044A
· Mackenzie
· 1976
[cited by applicant]
US 8518219B2
· Plopski et al.
· 2013
[cited by applicant]
US 8623227B2
· Lin et al.
· 2014
[cited by applicant]
US 20090098292A1
· Tyrell
· 2009
[cited by examiner]
US 20100147186A1
· Haugen
· 2010
[cited by examiner]
US 20130341175A1
· Linden et al.
· 2013
[cited by applicant]
US 20180362791A1
· Nio
· 2018
[cited by examiner]
CN 104479448A
· 2015
[cited by applicant]
CN 104671628A
· 2015
[cited by examiner]
CN 108911453A
· 2018
[cited by examiner]
KR 20150096349A
· 2015
[cited by examiner]
KR 20160093290A
· 2016
[cited by examiner]
Silvana, “Making Your Own Inks and Pigments”, last revised 2005, The Society for Creative Anachronism, p. 1-2 (Year: 2005).
[cited by examiner]
English machine translation of CN108911453A (“Machine_Translation_Peng_CN108911453”) (Year: 2018).
[cited by examiner]
Cao, Yucheng, and Artur Pawłowski. “Sewage sludge-to-energy approaches based on anaerobic digestion and pyrolysis: Brief overview and energy efficiency assessment.” Renewable and Sustainable Energy Reviews, vol. 16, No.…
[cited by examiner]
Hulse, Vanessa, “Biochar as a Substitute for Carbon Black in Lithographic Ink Production” (2019). Thesis. Rochester Institute of Technology. Accessed from https://repository.rit.edu/theses/10130 (Year: 2019).
[cited by examiner]
Opatokun, Suraj Adebayo, et al. “Life Cycle Analysis of energy production from food waste through anaerobic digestion, pyrolysis and Integrated Energy System.” Sustainability, vol. 9, No. 10, Oct. 5, 2017, p. 1804, http…
[cited by examiner]
Silvana, “Making Your Own Inks and Pigments”, last revised 2005, The Society for Creative Anachronism, p. 1-2 (Year: 2005) (Year: 2005).
[cited by examiner]
Edwards, Howell G. “Chapter 1. Analytical Raman spectroscopy of Inks.” Raman Spectroscopy in Archaeology and Art History, 2018, pp. 1-15, https://doi.org/10.1039/9781788013475-00001. (Year: 2018).
[cited by examiner]
“How to Make Natural Pigments from Foraged Raw Resources.” Lost in Colours, Apr. 14, 2020, www.lostincolours.com/foraging-for-pigments-from-local-rocks/. (Year: 2020).
[cited by examiner]
Rojas, Dan. “Biomass Char Solar Fresnel Lens Pyrolysis Green Garbage Disposal Bio Char.” YouTube, YouTube, 14 Sep. 2008, www.youtube.com/watch?v=iys379_2CTg. (Year: 2008).
[cited by examiner]
Hu, Xun, and Mortaza Gholizadeh. “Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage.” Journal of Energy Chemistry, vol. 39, Feb. 5, 2019, pp.…
[cited by examiner]
Caballero, J.A., et al. “Characterization of sewage sludges by primary and secondary pyrolysis.” Journal of Analytical and Applied Pyrolysis, vol. 40-41, May 1997, pp. 433-450, https://doi.org/10.1016/s0165-2370(97)0004…
[cited by examiner]
RIT Digital Institutional Repository. “Biochar as a Substitute for Carbon Black in Lithographic Ink Production.” RIT Digital Institutional Repository, Apr. 24, 2019, repository.rit.edu/theses/10130/. (Year: 2019).
[cited by examiner]
English machine translation of KR20150096349A (Year: 2015).
[cited by examiner]
English machine translation of CN104671628A (Year: 2015).
[cited by examiner]
Yao, Zhiyi, et al. “Anaerobic digestion and gasification hybrid system for potential energy recovery from yard waste and woody biomass.” Energy, vol. 124, Apr. 2017, pp. 133-145, https://doi.org/10.1016/j.energy.2017.02…
[cited by examiner]
Sears, Rodney E., “Gasification of Lignite Using Solar Energy” (1983). Theses and Dissertations. 6137. https://commons.und.edu/theses/6137 (Year: 1983).
[cited by examiner]
Sahitya, Sumit, et al. “Hydrogen-rich syngas from jatropha curcas shell biomass char in Fresnel lens solar concentrator assembly.” Energy Fuels, vol. 31, No. 8, Jul. 31, 2017, pp. 8335-8347, https://doi.org/10.1021/acs.…
[cited by examiner]
“Carbon Black.” Pigments through the Ages , Feb. 16, 2010, www.webexhibits.org/pigments/indiv/recipe/carbonblack.html. (Year: 2010).
[cited by examiner]
English machine translation of KR-20160093290-A (Year: 2016).
[cited by examiner]
Lacroix, Nicolas, et al. “Anaerobic digestion and gasification coupling for wastewater sludge treatment and recovery.” Waste Management Research: The Journal for a Sustainable Circular Economy, vol. 32, No. 7, Jun. 27, …
[cited by examiner]
Liao, Wenxi, and Sean C. Thomas. “Biochar particle size and post-pyrolysis mechanical processing affect soil ph, water retention capacity, and Plant Performance.” Soil Systems, vol. 3, No. 1, Feb. 14, 2019, p. 14, https…
[cited by examiner]
Weldekidan, Haftom, et al. “Review of solar energy for biofuel extraction.” Renewable and Sustainable Energy Reviews, vol. 88, May 2018, pp. 184-192, https://doi.org/10.1016/j.rser.2018.02.027 (Year: 2018).
[cited by examiner]
English machine translation of CN-108911453-A (Year: 2018).
[cited by examiner]