Viresco Solutions is a consulting firm based in Calgary, Alberta, Canada. Its core business is greenhouse gas offset policy development and implementation, greenhouse gas emissions quantification, sustainable supply chain development, environmental offset methodology development, and providing technical assistance to others undertaking carbon offset project development. Its clients include industry and non-governmental associations, large private sector companies, and local, provincial and federal governments.
In industrial chemistry, black liquor is the waste product from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose fibers.The equivalent material in the sulfite process is usually called brown liquor, but the terms red liquor, thick liquor and sulfite liquor are also used.
- Type:OrganisationKnowledge partnerCountry of registration:CanadaRelation to CTCN:Network MemberKnowledge Partner
- Type:OrganisationKnowledge partnerCountry of registration:EcuadorRelation to CTCN:Network MemberKnowledge PartnerTA proponent
IIGE is a research institute that promotes development, innovation and transmission of technology focused on energy efficiency and renewable energy. The institute aims to contribute to the sustainable development of the Ecuadorian society, through the implementation of energy efficient and energy renewable policies and projects.
The invention is a process for manufacturing acid-resistant biopolymer-lignin-membranes from the liquor from cellulose extraction processes. Black liquor is dried in the first stage of the process and is finally pressed into form. Through treatment with acid the lignin membranes acquire their porous structure and become insoluble in water and resistant to acid. According to use the membranes can be cleaned with water to remove the acid portion. The resulting membranes let filtration processes be carried out effectively and inexpensively and can be used as encapsulating media.
Lesico CleanTech is a pioneer in delivering sustainable technologies which recycle or minimize the volume of liquid waste primarily desalination rejected brine. The solutions not only help users comply with stringent regulation but result in substantial savings in real estate installation and operational costs.
Black liquor gasification is an emerging commercial technology founded on decades of research and development. Its goal is to produce a combustible mixture of raw gases as well as separate out the inorganic pulping chemicals for recycling for the pulping process. The processes can take place at low, 600 degrees Celsius, or high temperatures around 1000 degrees Celsius.
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The CTCN is collaborating with the Government of Congo on a feasibility study for the creation of a centre to monitor health and environmental risks in Pointe-Noire and possibly encompassing other countries in the Gulf of Guinea.
This invention is a process for manufacturing water-insoluble lignin-agglomerates in the form of granulates or briquettes from liquor left over as waste from processes of cellulose-extraction. The extract can be used energetically or materially. The extract is firstly granulated through spray-granulation or mix-agglomeration leaving lignin-agglomerates then is treated with acid lowering its pH-value and making it insoluble in water. This process can make not only lignin-granulates but also lignin-briquettes.
The main principle of this toilet is the separation of solid and liquid waste which is then later used for generation of biogas.
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Black liquor (BL), a by-product of the papermaking process, is an important liquid fuel in the pulp and paper industry. It consists of the remaining substances after the digestive process where the cellulose fibres have been cooked out from the wood. This report is aimed to provide a comparison of the recovery boiler with a pressurised gasifier for black liquor. Fundamentals concerning the conversion of black liquor, some details about the two recovery technologies and differences between these two will be presented.
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This article explains the basics of black liquor gasification in the pulp and paper industry. Black liquor, which accounts for most of the fuel consumed in Kraft mills, is usually combusted in recovery boilers to recover chemicals and to produce process steam and on-site electricity (via a steam turbine). The efficiency of such boilers is, however, low (around 65%-70%). Black liquor gasification is a process in which a clean synthesis gas (syngas) is produced from black liquor by converting its biomass content into a gaseous energy carrier.