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Method for utilizing biomasses

A technology of grain and hydrolyzate, applied in the direction of biofuel, application, xylose production, etc.

Pending Publication Date: 2021-09-14
오이칼파제르압
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, a problem with prior art methods of producing carbohydrates from various biomass feedstocks is how to effectively utilize the by-products and side streams generated in the process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Oat hulls from the grinding operation were suspended in water containing 1% sulfuric acid. The liquid was heated to 135°C under pressure and stirred for 60 minutes. After hydrolysis / extraction, the material was cooled to 70°C and neutralized to pH 4 by addition of NaOH. After pH adjustment, the slurry was filtered, and the filter cake was washed with water to obtain a high-purity D-xylose liquid. The solid filter cake is pressed to a 55% dry solids cake, which is burned for energy and the residual ash is subsequently collected for use as a mineral additive.

Embodiment 2

[0076] Example 2. Results from combustion experiments

[0077] The wet fiber cake obtained according to Example 1 by using oat hulls as starting material was fired in a laboratory test oven at a temperature of 550°C. Analyze calorific value, emissions and amount of residual ash. For comparison, the same analysis was performed from the combustion of pellets made from dried oat hulls. The results are shown in Table 1. Amounts are expressed on a dry matter basis.

[0078] Table 1. Results from combustion tests

[0079] oat husk pellets Oat Hull Fiber Pie Residual ash, m-% 5.6 4.5 Sulfur, m-% 0.08 0.08 Total calorie value, MJ / kg 18.73 19.60 Net calorific value, MJ / kg 17.43 18.36 Net calorific value, MWh / t 4.84 5.1 C, m-% 46.7 48.7 H, m-% 6.0 5.7 N, m-% 0.83 0.59 Cl, m-% 0.075 0.005 Na, mg / kg 150 48 K, mg / kg 6000 96

[0080] The results showed that the amount of residual ash was about...

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Abstract

The present invention relates to utilization of bio-based materials. In particular, the present invention relates to a method for utilization of grain based raw materials, wherein the method also comprises a versatile use of the side streams or by-products of the process. The method produces a wet fiber cake for combustion, wherein said wet fiber cake provides excellent burn values, low emission values and low amount of residual ash.

Description

technical field [0001] The present invention relates to the utilization of bio-based materials, more particularly, grain-based materials. In particular, the present invention relates to methods of utilizing cereal cultivation by-products, more specifically oat hulls, wherein said methods also include multiple uses of side streams or by-products of said methods. After hydrolysis of the bio-based material, the method of the present invention produces a wet fiber cake for combustion with excellent combustion values, low emission values ​​and low amounts of residual ash. Background technique [0002] Different biomasses have been identified as good sources for the extraction and utilization of various carbohydrate products, including D-xylose. Although the extraction and purification of carbohydrates, including sucrose and D-xylose, is generally technically feasible, due to the difficulties in handling the various solid and liquid by-product fractions derived from such processe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P19/02
CPCC12P19/02C13K13/002C08H8/00C10L5/445Y02E50/30Y02E50/10C13K1/02C12P19/14
Inventor A·尼可J·托伊瓦宁
Owner 오이칼파제르압
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