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During the period from 1988, Chemrec developed two pilot plants for first-generation atmospheric air-blown BLG gasifiers, first 1988–1989 with 3 tds/d (ton black liquor solids per day) capacity at SKF, Hofors, Sweden, then 1990–1994 with 75 tds/d capacity at AssiDomän, Frövi, Sweden, and followed by scale-up to the first commercial demo-plant, with this technology and 330 tds/d capacity ...
The black liquor is an aqueous suspension of lignin residues, hemicellulose, and the inorganic chemicals used in the process. The black liquor comprises 15% solids by weight of which two thirds are organic chemicals and the remainder are inorganic. [3] Normally the organics in black liquor are 40-45% soaps, [4] 35-45% lignin and 10-15% other ...
Recovery boiler is the part of kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor, which contains lignin from previously processed wood. The black liquor is burned, generating heat, which is usually used in the process of making electricity, much as in a conventional steam power plant .
According to the then-surgeon general's report, a woman who has two drinks a day faces a nearly 22% chance of developing an alcohol-related cancer, compared with a 16.5% risk for a woman drinking ...
It has been reported that 3.6% of all cancer cases and 3.5% of cancer deaths worldwide are attributable to drinking of alcohol. [31] Breast cancer in women is linked with alcohol intake. [ 1 ] [ 32 ] Alcohol also increases the risk of cancers of the mouth, esophagus, pharynx and larynx, [ 33 ] colorectal cancer , [ 34 ] [ 35 ] liver cancer ...
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The weak black liquor is further evaporated to 65% or even 80% solids ("heavy black liquor" [10]) and burned in the recovery boiler to recover the inorganic chemicals for reuse in the pulping process. Higher solids in the concentrated black liquor increases the energy and chemical efficiency of the recovery cycle, but also gives higher ...
In 2025, the Surgeon General of the United States Vice Admiral Vivek Murthy called for updates to alcohol warning labels on alcoholic beverages, with the advisory noting “Alcohol is a well-established, preventable cause of cancer responsible for about 100,000 cases of cancer and 20,000 cancer deaths annually in the United States.” [22] The ...