Method of producing slow-release nitrogenous organic fertilizer from biomass
First Claim
1. A process for making organic nitrogen compounds suitable for use as a fertilizer, said process comprising:
- (a) subjecting at least one material selected from the group consisting of ligno-cellulosic materials and starchy materials to pyrolysis to produce solid, liquid, and vapor products;
(b) chemically combining a nitrogen compound containing an --NH2 group with said liquid products to form organic nitrogen compounds; and
(c) and recovering the organic nitrogen compounds.
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Abstract
A process for making organic slow release nitrogenous fertilizers from pyrolysis products obtained from the pyrolysis of biomass uses a chemical reaction to combine a nitrogen compound containing the --NH2 group with the pyrolysis products to form a mixture. The mixture is heated to form organic nitrogen compounds. Various sources of biomass can be used. The mixture can be heated to remove water and to cause polymerization and solidification to occur. The mixture can also be combined with an absorbent. Previously, nitrogenous fertilizers had been produced using an ammoxidation process requiring long reaction times of up to several hours.
37 Citations
19 Claims
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1. A process for making organic nitrogen compounds suitable for use as a fertilizer, said process comprising:
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(a) subjecting at least one material selected from the group consisting of ligno-cellulosic materials and starchy materials to pyrolysis to produce solid, liquid, and vapor products; (b) chemically combining a nitrogen compound containing an --NH2 group with said liquid products to form organic nitrogen compounds; and (c) and recovering the organic nitrogen compounds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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- 16. An organic nitrogen compound suitable for use as a fertilizer comprising a chemical mixture of pyrolysis liquid products and a suitable nitrogen compound containing an --NH2 group.
Specification