发明名称 |
PROCESS FOR RECOVERING SALT DURING A LIGNOCELLULOSIC CONVERSION PROCESS |
摘要 |
The present invention relates to a process for generating steam and recovering salts during a lignocellulosic conversion process. The process comprises de-salting a still bottoms stream; incinerating a stream comprising lignin and the de-salted still bottoms stream in an incinerator; and utilizing the heat generated from said incinerating to produce steam. Further provided is a process that comprises feeding a concentrated still bottoms stream to a crystallizer and forming insoluble solids therein comprising salts. Furthermore, the invention relates to a process for recovering salts from a lignocellulosic conversion process, which process comprises the addition of solvent to a still bottoms stream to precipitate salts therefrom. Also provided is a still bottoms composition, a fertilizer product and a composition for incineration. |
申请公布号 |
US2014248676(A1) |
申请公布日期 |
2014.09.04 |
申请号 |
US201214241133 |
申请日期 |
2012.08.24 |
申请人 |
Griffin Robert;Rahme Ziyad;MacLean Patricia Dawn;Foody Brian |
发明人 |
Griffin Robert;Rahme Ziyad;MacLean Patricia Dawn;Foody Brian |
分类号 |
C12P3/00;F23G5/04;C05D9/00;F23G7/10;C12P7/10;C22B26/22 |
主分类号 |
C12P3/00 |
代理机构 |
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代理人 |
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主权项 |
1. A process for generating steam and recovering salts during a lignocellulosic conversion process, said process comprising the steps of:
(i) obtaining a stream comprising lignin and a still bottoms stream generated during the lignocellulosic conversion process; (ii) removing at least a portion of the water from the still bottoms stream to produce a concentrated still bottoms stream; (iii) removing at least a portion of the salts from the concentrated still bottoms stream to produce a de-salted still bottoms stream; (iv) incinerating the stream comprising lignin and the de-salted still bottoms stream in an incinerator; and (v) utilizing the heat generated from said incinerating to produce steam. |
地址 |
Ottawa CA |