Pulverulent substrate obtained by steam cracking of biomass without chemical auxiliary agent, and uses thereof
A biomass and powdery technology, applied in the direction of fermentation, single-cell algae, etc., can solve the problems of excessive consumption, aggravation of sugar chemical decomposition, and high cost, and achieve the effect of reducing CAPEX and producing cheaply
Pending Publication Date: 2022-02-11
ユーロペンヌ ドゥ ビオマス
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Problems solved by technology
Furthermore, said auxiliaries aggravate the chemical breakdown of sugars, leading to loss of yield and production of inhibitors of microorganisms and enzymes used in biotechnological processes or green chemistry, which require excessive consumption, or separation of contamination from the final product thing
Furthermore, dilution of biomass by maceration leads to increased energy costs of heat treatment and lower substrate titers even in the absence of adjuvants, the dilution of which is expensive in purification processes such as extraction or distillation
Finally, these approaches are expensive in terms of capital expenditures (tangible and intangible) and operating expenses (OPEX) dedicated to the purchase of specialized equipment (CAPEX)
[0014] Furthermore, the solutions proposed by the prior art deal with cases where the intensity factor is not an established parameter
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0059] Embodiment 1: the implementation of the steam cracking method capable of obtaining powdery carbon substrate
[0060] The production of the pulverized carbon substrates of the present invention can be achieved from wood by carrying out the following steps:
[0061] - Obtain wood chips with a wood size from 0.5mm to 14mm and a moisture level from 5% to 27%;
[0062] - a predetermined volume per minute of said wood chips obtained is continuously introduced into a pressurized reactor fed with substantially saturated water vapor at a pressure of 10 to 25 bar and at a temperature of 180 °C to 220°C;
[0063] - exposing wood chips introduced into said reactor to said water vapor for a period of time sufficient to achieve steam cracking of 5 minutes to 30 minutes, selecting the value of said exposure period and the value of said substantially saturated vapor temperature values such that the severity factor is 3 to 5, preferably 3.5 to 4;
[0064] - continuous extraction of...
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The invention relates to an energy substrate obtained by steam cracking of biomass. More specifically, the invention relates to pulverulent steam-cracked biomass devoid of any chemical additive, to a method for the production thereof and to the use thereof as a substrate for green chemistry and biotechnological methods such as enzymatic hydrolysis and fermentation.
Description
[0001] The present invention relates to energy substrates obtained by steam cracking of biomass. More specifically, the present invention relates to steam-cracked biomass in dry powder form and without any chemical additives, its preparation process and its use as a substrate for green chemistry and biotechnology processes such as enzymatic hydrolysis and fermentation. technical field [0002] Biotechnology approaches or green chemistry approaches use carbon substrates derived from plant food raw materials, which are production-intensive and costly. The LCA (Life Cycle Analysis) of the substrates, as well as food competition and the price of raw materials, are obstacles to the development of these biosourced products and to the bioeconomy in general. The use of "second generation" (2G) lignocellulosic biomass (wood, agricultural waste, co-products of agriculture and agroindustry) will make it possible to reduce environmental impacts (fossil CO 2 Emissions, fertilizers, phytos...
Claims
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IPC IPC(8): C12P19/00C12P19/02C12P19/14C12P19/04C12P1/00
CPCC12P19/00C12P19/02C12P19/14C12P19/04C12P1/00C08H8/00C08L97/02Y02E50/10C08B37/0003C12N1/12
Inventor J-B·马琳T·哈巴斯A·昆特罗-马尔克斯F·马特尔
Owner ユーロペンヌ ドゥ ビオマス