IP Library Granted Patent US 11,458,452
Granted Patent B2
US 11,458,452 · App. 15/172,358 · Granted Oct 4, 2022

Highly mesoporous activated carbon

Inventors: Daniel J. Despen (Minneapolis, MN); James A. Mennell (Dellwood, MN); David Reamer (Minneapolis, MN)
Assignee: Carbon Technology Holdings, LLC
B01J20/20B01J20/28064B01J20/28073C01B32/30C01B32/366C02F1/283C01P2006/12C01P2006/14C01P2006/90C02F2101/30C02F2101/34C02F2101/36C02F2101/38C02F2103/06C02F2303/02Y02E20/14Y02E50/10Y02P20/129Y02W10/37Y10T428/2982
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Quick Facts
Patent No.
US 11,458,452
App. No.
15/172,358
Granted
Oct 4, 2022
Kind
B2
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.

Claims (3)

1. A biogenic activated carbon product, wherein the biogenic activated carbon product is characterized by a Tannin Value of about 35 or less and has a mesoporosity consisting of a mesopore volume of about 0.7 cubic centimeters per gram or greater, and a Molasses Number of about 1000 or greater; wherein the activated carbon product is derived from a renewable feedstock.

2. The biogenic activated carbon product of claim 1 , wherein the mesopore volume is about 1.0 cubic centimeters per gram or greater.

3. The biogenic activated carbon product of claim 1 , wherein the biogenic activated carbon product is characterized by a micropore volume of less than about 0.2 cubic centimeters per gram.

Assignments (6)
SECURITY INTEREST Recorded Feb 5, 2025
From: CARBON TECHNOLOGY HOLDINGS, LLC
To: ALTER DOMUS (US) LLC
Reel/Frame 070114/0775 →
RELEASE OF SECURITY INTEREST Recorded Feb 4, 2025
From: FORTRESS CREDIT CORP.
To: CARBON TECHNOLOGY HOLDINGS, LLC
Reel/Frame 070608/0239 →
SECURITY INTEREST Recorded Feb 12, 2024
From: CARBON TECHNOLOGY HOLDINGS, LLC
To: FORTRESS CREDIT CORP.
Reel/Frame 066552/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2017
From: BIOGENIC REAGENTS VENTURES, LLC
To: CARBON TECHNOLOGY HOLDINGS, LLC
Reel/Frame 043600/0924 →
CONFIRMATORY PATENT ASSIGNMENT Recorded Jul 20, 2017
From: BIOGENIC REAGENTS, LLC
To: BIOGENIC REAGENTS VENTURES, LLC
Reel/Frame 043280/0490 →
CONFIRMATORY PATENT ASSIGNMENT Recorded Jun 15, 2017
From: DESPEN, DANIEL J.; MENNELL, JAMES A.; REAMER, DAVID
To: BIOGENIC REAGENTS, LLC
Reel/Frame 042824/0633 →
Continuity (3)
Continuation 14630331 · Feb 24, 2015
Provisional Application 61943565 · Feb 24, 2014
Related Publication 20160280554A1 · Sep 29, 2016