Unlock instant, AI-driven research and patent intelligence for your innovation.

Highly mesoporous activated carbon

a bioactive carbon, high-mesoporous technology, applied in the direction of natural mineral layered products, energy inputs, synthetic resin layered products, etc., can solve the problems of high energy consumption, high pollution, and inefficient traditional charcoal-making technologies

Inactive Publication Date: 2015-08-27
CARBON TECH HLDG LLC
View PDF2 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes an activated carbon product with certain characteristics, such as a large amount of mesopores (measured in cubic centimeters per gram), a high Molasses Number (measured in sugar concentration), and a low Tannin Value (measured in chemical content). The activated carbon product can be made from renewable sources such as pine trees and can be used in various commercial applications, such as water purification and energy storage. Overall, the patent text describes a new type of activated carbon with improved characteristics that make it more effective for certain uses.

Problems solved by technology

Converting biomass to biogenic activated carbon, however, poses both technical as well as economic challenges arising from feedstock variations, operational difficulties, and capital intensity.
Traditional charcoal-making technologies are energy-inefficient as well as highly polluting.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Highly mesoporous activated carbon
  • Highly mesoporous activated carbon
  • Highly mesoporous activated carbon

Examples

Experimental program
Comparison scheme
Effect test

example 1

Highly Mesoporous Activated Carbon

[0308]An activated carbon product is provided according to the present disclosure, characterized by the following measured properties. Powdered activated carbon (“PAC”) prepared by drying green pine chips to approximately 10% moisture content; deaerating this dried feedstock to remove interstitial oxygen; introducing the dried, deaerated feedstock into a single vessel pyrolysis unit; and heating the vessel to about 700° C. for approximately 30 minutes. A portion of the condensable vapors and non-condensable vapors released by the feedstock during pyrolysis were separated from the solid material. Nitrogen and steam were heated to at least 300° C. and injected into the reactor vessel, counter-current to product flow, at a rate exceeding 2 pounds of these gases per pound of pine feedstock. Oxygen level in the reactor was maintained below 3%. The resulting highly mesoporous carbon material was cooled with nitrogen and collected. This composition is refe...

example 2

MIB / Geosmin Removal at Decatur Water Treatment Facility

[0310]While there are several organic compounds classified as taste- and odor-causing compounds, the most prominently encountered are trans-1,10-dimethyl-trans-9-decalol (geosmin) and 1,2,7,7-tetramethyl-bicyclo-heptan-2-ol (MIB) which can result in consumer complaints at levels as low as 5-10 ng / L (Sulfet et al., “AWWA Taste and Odor Survey,”J AWWA, Vol. 88, Issue 4, pp. 168-180, 1996). Other taste- and odor-causing compounds include 2-isopropyl-3-methoxy pyrazine (IPMP), 2-isobutyl-3-methoxy pyrazine (IBMP), and 2,3,6-trichloranisole (TCA). MIB and geosmin are secondary metabolites generated by certain species of phytoplankton and bacteria, and exude characteristic earthy-musty tastes and odors. Typically, testing focuses on MIB and geosmin because these two compounds are more prevalent in nature and are more difficult to remove than IBMP, TCA, and IPMP.

[0311]The Decatur Water Treatment Facility utilizes powdered activated car...

example 3

Odor / TOC Removal at Des Moines Water Works

[0326]Des Moines Water Works (Des Moines, Iowa) examined eight varieties of Powdered Activated Carbon (PAC) for odor and total organic carbon (TOC) removal.

[0327]In this Example 3, performance-based testing was conducted using the powdered activated carbon UAC-H2O M of Example 1. The performance of the UAC-H2O M composition of Example 1 is summarized in FIG. 3, showing that the composition outperformed the other (comparative composition) materials by 33% to 66% for odor removal, and by 50% to 83% for TOC removal.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Surface areaaaaaaaaaaa
Specific volumeaaaaaaaaaa
Specific volumeaaaaaaaaaa
Login to View More

Abstract

Highly mesoporous activated carbon products are disclosed with mesoporosities characterized by mesopore volumes of 0.7 to 1.0 cubic centimeters per gram or greater. Also disclosed are activated carbon products characterized by a Molasses Number of about 500 to 1000 or greater. Also disclosed are activated carbon products characterized by a Tannin Value of about 100 to 35 or less. The activated carbon products may be further characterized by total pore volumes of at least 0.85 cubic centimeters per gram and BET surface areas of at least about 800 square meters per gram. The activated carbon product may be derived from a renewable feedstock.

Description

PRIORITY DATA[0001]This patent application is a non-provisional patent application claiming priority to U.S. Provisional Patent App. No. 61 / 943,565, filed on Feb. 24, 2014, which is hereby incorporated by reference herein in its entirety.FIELD[0002]The present disclosure generally relates to biogenic activated carbon products having high mesoporosity.BACKGROUND[0003]Activated carbon is a commonly used form of carbon. Activated carbon can be produced, in principle, from virtually any material containing carbon. Carbonaceous materials commonly include fossil resources such as natural gas, petroleum, coal, and lignite; and renewable resources such as lignocellulosic biomass and various carbon-rich waste materials. In some embodiments, a renewable biomass is used (at least in part) to produce activated carbons because of the rising economic, environmental, and social costs associated with fossil resources.[0004]Biomass is a term used to describe any biologically produced matter, or biog...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C01B31/08B01J20/28C02F1/28B01J20/20
CPCC01B31/08B01J20/20B01J20/28073B01J20/28064C02F1/283C02F2303/02C01P2006/90C01P2006/12C02F2101/30C02F2103/06C01P2006/14Y02E20/14Y02W10/37Y02P20/129C01B32/30C01B32/366Y10T428/2982Y02P20/133Y02E50/10C02F2101/34C02F2101/36C02F2101/38
Inventor DESPEN, DANIEL J.MENNELL, JAMES A.REAMER, DAVID
Owner CARBON TECH HLDG LLC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com