A method for converting urban domestic organic sewage into bioalcohol-based fuel
A technology for organic sewage and bio-alcohol, applied in the environmental field, can solve the problems of difficult product purification and recycling, strict quality requirements of reactants, and difficulty in applying fatty acids.
Active Publication Date: 2016-08-17
江苏利然环保科技有限公司
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Problems solved by technology
[0020] Furthermore, the traditional esterification process is an acid process or an alkali process. However, when using a conventional acid-base catalyst, the conversion efficiency is low, and a large amount of acid-base catalyst is required, which makes subsequent product purification and recovery difficult; During the esterification method, the catalyst has strict requirements on the quality of the reactants, and it is difficult to be applied to the esterification of fatty acids obtained from sewage as a raw material. For this reason, the present invention has developed a kind of esterification method suitable for the method of the present invention through a large number of experiments. reaction catalyst
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Embodiment 1
[0044]The leachate from the slaughterhouse municipal solid waste yard and the sewage of urban life are collected in the sewage storage tank; the deodorant and / or insecticide biological formula (ie formulation) is put into the formula storage tank; the step Described sewage and biological formula are put into agitator by the weight ratio of 9:1 and stir; Put into conversion equipment after stirring evenly and transform, add acid-producing bacteria (obtained from the sludge anaerobic production of Alderich in this conversion equipment) Bacteria), the conversion temperature is 25°C; then methanol is added to esterify the fatty acids in it, and fatty acid methyl esters and other alcohols are collected to obtain alcohol-based fuels. In the esterification, first detect the content of fatty acid, calculate the amount of methanol that should be added, the molar ratio of methanol to fatty acid is 1.2:1, the reaction temperature is 65°C, the reaction time is 3h, and the catalyst used is ...
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The invention discloses a method for converting city life organic sewage into biological alcohol-based fuel. The method comprises the following steps: (1) collecting the city life organic sewage in a sewage storage tank, and enriching the city life organic sewage into enriched organic sewage with organic component content being 20 to 60 weight%; (2) putting a deodorant and / or insecticide biological formula into a formula storage tank; (3) putting the sewage collected in the step (1) and the biological formula of the step (2) into a stirrer according to weight ratio of (1:9) to (9:1), and stirring; (4) after uniformly stirring, putting into conversion equipment for converting, wherein the conversion temperature is 25 to 35 DEG C; (5) further treating a conversion product to obtain the alcohol-based fuel. The alcohol-based fuel obtained by the method has better fuel performance indexes, such as cetane number and oxidation stability.
Description
technical field [0001] The invention belongs to the field of environmental technology, and relates to resource conversion and utilization of organic sewage, in particular to a treatment method for organic sewage, and more particularly, to a method for converting organic sewage into bioalcohol-based fuel. Background technique [0002] Urban domestic organic sewage refers to all kinds of stench containing sulfur and oxygen produced in animal husbandry, poultry farms, slaughterhouses, various industrial chemicals, electroplating plants, urban garbage dumps, hospitals, public toilets, etc. Sewage with organic components such as , nitrogen and ammonia, also known as volatile organic compounds, has the characteristics of high concentration (COD, BOD), difficult treatment and great harm. [0003] With the continuous expansion of the research, development and application of microbial fermentation engineering technology, the development history of using sewage to produce and treat en...
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IPC IPC(8): C02F9/14C10L1/02
CPCY02W10/37
Inventor 汪周启
Owner 江苏利然环保科技有限公司