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1. 发明申请

US20100021979A1 Apparatus and Process for Production of Biogas 有权
标题翻译：沼气生产设备及工艺
公开(公告)号：US20100021979A1
公开(公告)日：2010-01-28
申请号：US12491910
申请日：2009-06-25
申请人： Roderick Michael Facey , Aaron Stavne
发明人： Roderick Michael Facey , Aaron Stavne
IPC分类号： C12P7/24 , C12M1/00
CPC分类号： C12P5/023 , C02F1/20 , C02F1/281 , C02F1/42 , C02F11/04 , C02F11/18 , C02F2101/16 , C02F2101/20 , C02F2209/06 , C12M21/04 , C12M23/58 , C12M29/20 , C12M45/02 , C12M45/20 , C12M47/18 , Y02E50/343 , Y02W10/23
摘要： A process and an apparatus for the manufacture of biogas and a solids fraction from an organic waste feedstock is provided. The process involves thermal hydrolysis of the organic waste feedstock at a temperature from about 100 to about 220° C., a pressure from about 5 to about 20 bars, for a period of time from about 15 minutes to 4 hours, to produce a hydrolysate. The hydrolysate undergoes anaerobic digestion at a temperature from about 25 to 60° C., for a period of time from about 1 to 35 days to produce a biogas stream and a digestate. The digestate is separated into a solids fraction and a liquid fraction, and a portion of the solids fraction is recycled for further anaerobic digestion. The biogas stream, characterized as having a methane content from between 55 to 80% by volume, and the solids fraction, are recovered. The apparatus includes a receiving bin for receiving and supplying organic waste feedstock to a thermal hydrolysis reactor. The thermal hydrolysis reactor for processing the organic waste feedstock at a temperature from about 100 to about 220° C., a pressure from about 5 to about 20 bars, for a period of time from about 15 minutes to 4 hours to produce a hydrolysate. An anaerobic digester for processing the hydrolysate at a temperature from about 25 to 60° C., for a period of time from about 1 to 35 days to produce the biogas and a digestate, and a solids thickening tank for separating the digestate into the solid fraction, a liquid fraction and a secondary biogas fraction.
摘要翻译：提供了一种用于从有机废料原料制造沼气和固体馏分的方法和设备。该方法包括在约100至约220℃的温度，约5至约20巴的压力下将有机废物原料热水解约15分钟至4小时的时间段，以产生水解产物。水解产物在约25至60℃的温度下进行厌氧消化，持续约1至35天的时间以产生生物气流和消化物。将消化物分离成固体部分和液体部分，并将一部分固体部分再循环用于进一步的厌氧消化。回收特征为甲烷含量为55至80体积％和固体分数的生物气流。该装置包括用于接收和供应有机废料到热水解反应器的接收箱。热水解反应器，用于在约100至约220℃的温度，约5至约20巴的压力下处理有机废物原料，时间为约15分钟至4小时，以产生水解产物。一种用于在约25至60℃的温度下处理水解产物的厌氧消化器，约1至35天的时间以生产沼气和消化物，以及用于将消化物分离成固体的固体增稠罐馏分，液体馏分和次生沼气馏分。

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